WO2021090873A1 - Road structure, forming jig, and road structure construction method - Google Patents

Road structure, forming jig, and road structure construction method Download PDF

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Publication number
WO2021090873A1
WO2021090873A1 PCT/JP2020/041331 JP2020041331W WO2021090873A1 WO 2021090873 A1 WO2021090873 A1 WO 2021090873A1 JP 2020041331 W JP2020041331 W JP 2020041331W WO 2021090873 A1 WO2021090873 A1 WO 2021090873A1
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WO
WIPO (PCT)
Prior art keywords
steel pipe
pile
road structure
pipe pile
eccentric
Prior art date
Application number
PCT/JP2020/041331
Other languages
French (fr)
Japanese (ja)
Inventor
仁志 尾添
聡 松永
啓介 塩田
Original Assignee
Ｊｆｅシビル株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ｊｆｅシビル株式会社 filed Critical Ｊｆｅシビル株式会社
Priority to JP2021554967A priority Critical patent/JP7371113B2/en
Priority to PH12021550584A priority patent/PH12021550584A1/en
Publication of WO2021090873A1 publication Critical patent/WO2021090873A1/en
Priority to JP2023179392A priority patent/JP2023174870A/en

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C1/00—Design or layout of roads, e.g. for noise abatement, for gas absorption
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00—Movable or portable bridges; Floating bridges
    • E01D15/24—Bridges or similar structures, based on land or on a fixed structure and designed to give access to ships or other floating structures
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/16—Sealings or joints
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/60—Planning or developing urban green infrastructure

Definitions

  • the present invention relates to a road structure capable of securing the slope and width required for a road without being affected by the terrain when constructing a road in a mountainous area, a formwork jig used for construction of the road structure, and a road structure. Regarding the construction method.
  • a pile head block is joined on a steel pipe pile to be driven into the ground, a girder is installed on the pile head block, and a road slab is placed on the girder.
  • a road slab is placed on the girder.
  • superstructures such as girders and floor slabs are directly provided on the upper part of the steel pipe pile protruding from the slope, and the steel pipe pile protrudes for terrain where the slope depth is deep with respect to the planned road surface. The length becomes great. In this case, the error in the position of the pile head of the steel pipe pile becomes large due to the influence of the accuracy of driving the steel pipe pile and the accuracy of the steel pipe pile.
  • the pile head block and girder must be installed by adjusting the error of the position of each pile head of a plurality of steel pipe piles due to the influence of the terrain, so that the construction period for installing the road structure is prolonged. There was a problem that the cost also increased.
  • the present invention solves the above problems, and is a road structure capable of ensuring installation accuracy regardless of the terrain and suppressing the construction period and cost, a formwork jig used for the construction of the road structure, and a construction method of the road structure.
  • the purpose is to provide.
  • the road structure according to the present invention includes a steel pipe pile including a first steel pipe pile and a second steel pipe pile placed in parallel in the first direction in which the road extends and the second direction intersecting the first direction.
  • a girder member that connects a steel pipe column connected above the first steel pipe pile, an upper end grade steel pipe installed at the upper end of the second steel pipe pile or the steel pipe column, and two adjacent upper end grade steel pipes.
  • the first steel pipe pile the second steel pipe pile, the steel pipe strut, and the upper end grade steel pipe.
  • the joint portion between the lower member and the upper member is the central axis of the lower member and the upper member. It is joined by an eccentric joining member that can be joined in a state where the central axis of the member is eccentric.
  • the form jig according to the present invention is connected to a steel pipe pile placed in parallel in the first direction in which the road extends and the second direction intersecting the first direction, and above the steel pipe pile.
  • a steel pipe strut and a steel pipe pile or a graded steel pipe installed on the steel pipe strut are provided, and among the steel pipe pile, the steel pipe strut, and the graded steel pipe, a member located below is used as a lower member.
  • the member joined above the lower member is an upper member
  • the joint portion between the lower member and the upper member is in a state where the central axis of the lower member and the central axis of the upper member are eccentric.
  • the eccentric joining member includes a tubular body, and the tubular body is installed so as to surround the outer peripheral surface of the steel pipe pile or the steel pipe column, and the tubular body and the steel pipe pile or
  • the gap formed between the steel pipe column and the steel pipe column is a mold jig used when installing the eccentric joining member of the road structure, which is filled with a filler, and surrounds the outer peripheral surface of the lower member.
  • a mold plate installed in contact with the lower end of the cylinder, an adjustment bolt for adjusting and fixing the horizontal position of the cylinder, the mold plate and the adjustment bolt are supported and detachably attached to the lower member. It is provided with a bracket to be fixed.
  • the construction method of the road structure according to the present invention is connected to a steel pipe pile to be driven into the ground in parallel in a first direction in which the road extends and a second direction intersecting the first direction, and above the steel pipe pile.
  • a steel pipe strut and a steel pipe pile or a graded steel pipe installed on the steel pipe strut are provided, and a member located below the steel pipe pile, the steel pipe strut, and the graded steel pipe is used as a lower member.
  • the member joined above the lower member is an upper member
  • the joint portion between the lower member and the upper member is in a state in which the central axis of the lower member and the central axis of the upper member are eccentric.
  • the eccentric joining member improves the position accuracy of the pile head even in a pile having a large protrusion length from the ground, and can suppress the adjustment of the position accuracy of the upper end grade steel pipe and the girder member. Regardless of the construction period and cost, the road structure can be installed.
  • FIG. It is a schematic diagram of the road structure 100 which concerns on Embodiment 1.
  • FIG. It is explanatory drawing of the cross-sectional structure of the AA part of the road structure 100 of FIG. It is explanatory drawing of the cross-sectional structure of the BB part of the road structure 100 of FIG. It is explanatory drawing of the cross-sectional structure of the CC part of the road structure 100 of FIG. It is a layout drawing of the girder member 41 of the road structure 100 of FIG. It is explanatory drawing of the cross-sectional structure around the upper end grade point steel pipe 50a of the road structure 100 which concerns on Embodiment 1.
  • FIG. It is a top view of the upper end grade point steel pipe 50a of the road structure 100 which concerns on Embodiment 1.
  • FIG. 1 It is explanatory drawing of the cross-sectional structure around the intermediate grade steel pipe 50b of the road structure 100 which concerns on Embodiment 1.
  • FIG. It is a top view of the intermediate grade steel pipe 50b of the road structure 100 which concerns on Embodiment 1.
  • FIG. 1 It is explanatory drawing of the cross-sectional structure around the intermediate grade steel pipe 150b which is a modification of the intermediate grade steel pipe 50b of the road structure 100 which concerns on Embodiment 1.
  • FIG. It is explanatory drawing of the cross-sectional structure of an example of the intermediate grade steel pipe 150b which is a modification of the intermediate grade steel pipe 50b of the road structure 100 which concerns on Embodiment 1.
  • FIG. It is a schematic diagram of the road structure 100 and the road structure 1000 of the comparative example which concerns on Embodiment 1.
  • FIG. It is explanatory drawing of the cross-sectional structure around the upper end grade point steel pipe 250a of the road structure 200 which concerns on Embodiment 2.
  • FIG. It is a top view of the upper end grade point steel pipe 250a of the road structure 200 which concerns on Embodiment 2.
  • FIG. It is a side view of the structure around the intermediate grade steel pipe 250b of the road structure 200 which concerns on Embodiment 2.
  • FIG. It is explanatory drawing of the state in which the steel pipe pile 20 is built in the hole 95. It is explanatory drawing of the structure of the formwork jig 70 used in the temporary joining process of Embodiment 3.
  • FIG. 1 This is an example of a grade girder in which an upper end grade steel pipe 250a and a cross girder 41b are integrated.
  • FIG. 26B It is explanatory drawing of the cross-sectional structure of the modified example of the road structure 100 which concerns on Embodiment 1 and the road structure 200 which concerns on Embodiment 2. It is a side view of the modified example of the road structure 100 which concerns on Embodiment 1 and the road structure 200 which concerns on Embodiment 2. It is explanatory drawing of the cross-sectional structure around the upper end grade point steel pipe 550a of the road structure 100 which concerns on Embodiment 5. FIG. It is a top view and the side view of the upper end grade point steel pipe 550a of the road structure 100 which concerns on Embodiment 5. FIG. It is sectional drawing of the FF part of FIG. 26B.
  • FIG. 1 is a schematic view of the road structure 100 according to the first embodiment.
  • FIG. 2 is an explanatory view of a cross-sectional structure of a portion AA of the road structure 100 of FIG.
  • FIG. 3 is an explanatory view of the cross-sectional structure of the BB portion of the road structure 100 of FIG.
  • FIG. 4 is an explanatory view of the cross-sectional structure of the CC portion of the road structure 100 of FIG.
  • FIG. 5 is a layout diagram of the girder member 41 of the road structure 100 of FIG.
  • the road structure 100 is installed on a ground with large undulations such as a mountainous area.
  • the road structure 100 is used, for example, when a road is provided along a slope in a mountainous area, when an existing road provided along the slope is widened, or when a road is passed across a swamp in a mountainous area. It is a structure. In the first embodiment, the road structure 100 installed along the slope of the mountainous area will be described.
  • the road structure 100 includes a plurality of steel pipe piles 20 placed in the ground 90.
  • the steel pipe pile 20 is built in a hole provided in the ground 90 so that the pile head 12 projects from the surface 94 of the ground 90.
  • the ground 90 penetrates the sedimentary layer 92 by a down-the-hole hammer or the like, and is drilled to the support layer 93.
  • the steel pipe pile 20 is erected in the ground 90 by building the steel pipe pile 20 in the hole provided in the ground 90 and filling the hole with a filler such as concrete or mortar.
  • a plurality of steel pipe piles 20 are driven into the ground 90 in parallel with the first direction in which the road extends.
  • the girder member 41 is arranged so as to be bent along a slope or the like, and the road is configured by installing a road slab 99 on the girder member 41.
  • the first direction is the direction along this road.
  • the plurality of steel pipe piles 20 of the road structure 100 include a first steel pipe pile 20a and a second steel pipe pile 20b.
  • a steel pipe column 30 is connected to the first steel pipe pile 20a above. The steel pipe column 30 is joined to the upper end of the first steel pipe pile 20a according to the height from the surface 94 of the ground 90 on which the road slab 99 and the girder member 41 are installed.
  • the triangular symbol shown in FIG. 1 indicates the joint portion 11 between the first steel pipe pile 20a and the steel pipe column 30.
  • the eccentric joining member 60 (see FIGS. 6 and 8) joins the lower member located on the ground 90 side and the upper member joined above the lower member.
  • the columnar structure erected on the ground 90 may be referred to as a support pile 10.
  • the structure in which the above-mentioned first steel pipe pile 20a and the steel pipe column 30 are joined may be referred to as a support pile 10a.
  • the steel pipe column 30 is joined to the pile head 21a of the first steel pipe pile 20a and extends upward.
  • An upper end grade steel pipe 50a is joined to the pile head 12 of the steel pipe column 30.
  • the upper end grade point steel pipe 50a is joined to the pile head 12 of the steel pipe column 30 by using an eccentric joining member 60.
  • the upper end grade steel pipe 50a is connected to the upper end grade steel pipe 50a adjacent to each other in the first direction by a girder member 41.
  • the girder member 41 installed along the first direction is particularly referred to as a vertical girder 41a.
  • the upper end grade steel pipe 50a is connected to the adjacent upper end grade steel pipe 50a in parallel in the second direction intersecting the first direction by a girder member 41.
  • the girder member 41 installed along the second direction is particularly referred to as a cross girder 41b.
  • two steel pipe piles 20 are arranged along the second direction intersecting the first direction.
  • the cross girder 41b connects the pile heads 12 arranged in the second direction.
  • the girder member 41 is installed along the first direction and the second direction, and connects the pile heads 12 of the support piles 10 via the upper end grade point steel pipe 50a, respectively.
  • a floor slab fixing member 42 is installed on the upper surface of the girder member 41 and the upper end grade steel pipe 50a.
  • the road floor slab 99 is fixed to the girder member 41 and the upper end grade steel pipe 50a via the floor slab fixing member 42.
  • Two or more steel pipe piles 20 may be arranged in the second direction intersecting the first direction.
  • the cross girder 41b is provided with a connecting portion 43 at the center.
  • a vertical girder 41a is connected to the connecting portion 43.
  • the vertical girder 41a connected to the connecting portion 43 connects the connecting portions 43 of the horizontal girders 41b adjacent to each other in the first direction.
  • the upper end grade steel pipe 50a is connected to the upper side of the second steel pipe pile 20b.
  • the upper end grade point steel pipe 50a is joined to the pile head 12 of the second steel pipe pile 20b by using an eccentric joining member 60.
  • the upper end grade steel pipe 50a joined to the second steel pipe pile 20b is the same as the upper end grade steel pipe 50a joined to the support pile 10a with the upper end grade steel pipe 50a adjacent to each other in the first direction and the second direction. It is connected.
  • the second steel pipe pile 20b may be referred to as a support pile 10b.
  • the support pile 10a is provided with an intermediate grade steel pipe 50b.
  • the intermediate grade steel pipe 50b is installed in the central portion of the steel pipe column 30 of the support piles 10a. That is, the intermediate grade steel pipe 50b is provided on the support pile 10a having a large protrusion length from the ground 90 in the road structure 100.
  • the intermediate grade steel pipe 50b is connected to the intermediate grade steel pipe 50b provided on the adjacent steel pipe columns 30 by a beam member 40.
  • the beam member 40 installed along the first direction is particularly referred to as a vertical beam 40a.
  • the intermediate grade steel pipe 50b is connected to the intermediate grade steel pipe 50b installed on the supporting piles 10 adjacent to each other in the second direction intersecting the first direction by the beam member 40.
  • the beam member 40 installed along the second direction is particularly referred to as a cross beam 40b.
  • the beam member 40 may be installed at an angle as shown in FIGS. 1 and 3, or may be installed horizontally as shown in FIG. Further, the intermediate grade steel pipe 50b is not limited to the one installed on the steel pipe column 30 as shown in FIGS. 1 and 4, and may be installed on the second steel pipe pile 30b as shown in FIG. good.
  • FIG. 6 is an explanatory view of a cross-sectional structure around the upper end grade point steel pipe 50a of the road structure 100 according to the first embodiment.
  • FIG. 7 is a top view of the upper end grade point steel pipe 50a of the road structure 100 according to the first embodiment.
  • the upper end grade point steel pipe 50a and the support pile 10 are joined by an eccentric joining member 60a.
  • the eccentric joining member 60a is a part of the upper end grade steel pipe 50a and is for being combined with the pile head 12 of the support pile 10 so that the position of the upper end grade steel pipe 50a with respect to the pile head 12 can be adjusted. ..
  • the upper end grade point steel pipe 50a can be joined to the support pile 10 by the eccentric joining member 60a even when the positions of the support pile 10 and the central axis are deviated from each other.
  • the eccentric joining member 60a that joins the upper end grade steel pipe 50a and the pile head 12 may be particularly referred to as a first eccentric joining member.
  • the eccentric joint member 60a is composed of at least a steel pipe member 51a and a support member 55a, which are cylinders constituting the upper end grade steel pipe 50a.
  • the steel pipe member 51a has a cylindrical shape.
  • a support member 55a is installed above the inside of the steel pipe member 51a.
  • the support member 55a passes through the central axis C of the cylindrical steel pipe member 51a and is formed by combining plate-shaped members in a cross shape.
  • the steel pipe member 51a is not limited to a cylindrical shape, and may be a cylindrical body having a cross-sectional shape such as a rectangle or a polygon.
  • the upper end grade steel pipe 50a includes a vertical girder joint 52a and a horizontal girder joint 53a to which the girder member 41 is connected.
  • the vertical girder joint 52a, the horizontal girder joint 53a, and the girder member 41 sandwich the end of the vertical girder joint 52a or the horizontal girder joint 53a and the end of the girder member 41 with the splicing plate 44, and bolt. And nuts are used to fix and connect the splicing plate 44 and the ends of the respective members.
  • the upper end grade steel pipe 50a has a plate-shaped member attached to the upper part, and the upper surface 57a is flat.
  • the upper surface 57a may be inclined according to the inclination of the road.
  • a filling hole 56a that penetrates the plate-shaped member is opened in the upper surface 57a.
  • the filling hole 56a is a hole for injecting the filler 80 into the space between the pile head 12 and the steel pipe member 51a, and communicates the outside with the space inside the steel pipe member 51a.
  • the end surface 14 of the pile head 12 of the support pile 10a or 10b abuts on the lower surface of the support member 55a.
  • the position of the upper end grade steel pipe 50a in the central axis direction of the support pile 10, that is, the position in the height direction is determined.
  • the steel pipe member 51a surrounds the outer peripheral surface of the upper end portion of the support pile 10.
  • a gap is formed between the inner surface of the steel pipe member 51a and the outer surface of the support pile 10, and the upper end grade steel pipe 50a has the support pile 10 by the amount of the gap. On the other hand, it can be moved in the horizontal direction. As shown in FIGS.
  • the support member 55a is formed by combining plate-shaped members in a cross shape, but may take other forms.
  • the support member 55a can hold the upper end grade steel pipe 50a on the end surface 14 of the pile head 12, and may have another structure as long as it does not interfere with the injection of the filler 80.
  • the position of the pile head 12 of the support pile 10 may deviate from the assumed position.
  • the position error of the pile head 12 may increase due to the accuracy and joining accuracy of the steel pipe pile 20 and the steel pipe column 30 individually.
  • the steel pipe member 51a of the upper end grade steel pipe 50a has a cylindrical shape and the pile head 12 has a cylindrical shape
  • the inner diameter of the steel pipe member 51a is set to be 300 mm larger than the outer diameter of the pile head 12.
  • the upper end grade steel pipe 50a can be installed at the correct position even if the pile head 12 has a horizontal position error of 100 mm, and the filling property of the filler 80 can be ensured.
  • the filler 80 is filled in the gap between the steel pipe member 51a and the pile head 12 through the filling hole 56a opened in the upper surface 57a of the upper end grade steel pipe 50a.
  • the steel pipe member 51a is open at the bottom. Therefore, in the filling step of the filler 80, the formwork jig 70 (see FIG. 17) is brought into contact with the lower end surface of the steel pipe member 51a to close the opening so that the filler 80 does not leak from below.
  • the formwork jig 70 will be described separately.
  • Projections 54 and 13 are provided on the inner surface of the steel pipe member 51a forming a gap between the steel pipe member 51a filled with the filler 80 and the pile head 12 and the outer surface of the pile head 12.
  • the filler 80 Since the protrusions 54 and 13 mesh with the solidified filler 80, the filler 80 does not shift in the direction along the inner surface of the steel pipe member 51a and the outer surface of the pile head 12, and the upper end grade steel pipe 50a and the support pile.
  • the load transmission to and from 10 can be improved.
  • the protrusions 13 and 54 may be formed by bending a reinforcing bar or a steel bar and fixing them by welding.
  • the steel pipe member 51a and the support pile 10 may be formed of a steel plate material with protrusions.
  • a ribbed steel pipe formed of a striped steel plate having protrusions in the vertical and horizontal directions on the surface of the steel plate and a ribbed steel plate having protrusions having a height of about 2 mm arranged in parallel may be used.
  • the striped steel plate or the ribbed steel pipe it is possible to reduce the construction cost and the process for welding and joining the protrusion 54 to the steel pipe member 51a and the protrusion 13 to the support pile 10.
  • the protrusions 13 and 54 integrally formed in advance improve the fixing strength of the slip prevention protrusion, the steel pipe member 51a of the upper end grade steel pipe 50a can reduce the dimension in the height direction.
  • FIG. 8 is an explanatory view of a cross-sectional structure around an intermediate grade steel pipe 50b of the road structure 100 according to the first embodiment.
  • FIG. 9 is a top view of the intermediate grade steel pipe 50b of the road structure 100 according to the first embodiment.
  • the intermediate grade steel pipe 50b and the support pile 10 are joined by an eccentric joining member 60b.
  • the eccentric joint member 60b is a part of the intermediate grade steel pipe 50b, and is for being combined with the support pile 10 so that the position of the intermediate grade steel pipe 50b with respect to the support pile 10 can be adjusted. That is, the intermediate grade steel pipe 50b can be joined to the support pile 10 by the eccentric joining member 60b even when the positions of the support pile 10 and the central axis are deviated from each other.
  • the eccentric joint member 60b is composed of at least a steel pipe member 51b constituting an intermediate grade steel pipe 50b.
  • the steel pipe member 51b is a tubular body and has a cylindrical shape in the first embodiment.
  • the steel pipe member 51b is not limited to a cylindrical shape, and may be a cylindrical body having a cross-sectional shape such as a rectangle or a polygon.
  • the steel pipe member 51b which is a tubular body surrounding the support pile 10, can be joined in a state where the central axis is deviated from the central axis of the support pile 10, and is particularly referred to as a second eccentric joining member.
  • the intermediate grade steel pipe 50b includes a vertical beam joint 52b and a horizontal beam joint 53b to which the beam member 40 is connected.
  • the vertical beam joint 52b, the horizontal beam joint 53b, and the beam member 40 are formed by using a splicing plate 44 to connect the end of the vertical beam joint 52b or the horizontal beam joint 53b and the end of the beam member 40 in the same manner as the girder member 41.
  • the splicing plate 44 and the end portions of the respective members are fixed and connected by sandwiching, bolts and nuts.
  • the steel pipe member 51b of the intermediate grade steel pipe 50b is a tubular body, its ends in the vertical direction are open. Therefore, the upper end of the gap between the steel pipe member 51b and the support pile 10 serves as a filling port 56b and serves as an opening for injecting the filler 80 into the space between the steel pipe member 51b and the support pile 10, and the outside and the steel pipe member 51a It communicates with the internal space.
  • the intermediate grade steel pipe 50b Before the filler 80 is filled, a gap is formed between the inner surface of the steel pipe member 51b and the outer surface of the support pile 10, and the intermediate grade steel pipe 50b has the support pile 10 by the amount of the gap. On the other hand, it can be moved in the horizontal direction.
  • the formwork is applied to the lower end surface of the intermediate grade steel pipe 50b when the intermediate grade steel pipe 50b is attached to the support pile 10.
  • the tool 70 (see FIG. 17) is brought into contact with the intermediate grade steel pipe 50b from below.
  • the formwork jig 70 also has a function of preventing the filler 80 from leaking from the lower opening when the filler 80 is filled.
  • the position of the support pile 10 may deviate from the expected position.
  • the positional error of the support pile 10 may increase due to the accuracy and joining accuracy of the steel pipe pile 20 and the steel pipe column 30 individually.
  • the steel pipe member 51b of the intermediate grade steel pipe 50b has a cylindrical shape and the support pile 10 has a cylindrical shape
  • the inner diameter of the steel pipe member 51b is set to be 300 mm larger than the outer diameter of the support pile 10.
  • Projections 54 and 13 are provided on the inner surface of the steel pipe member 51b and the outer surface of the support pile 10 that form a gap between the steel pipe member 51b filled with the filler 80 and the support pile 10. Since the protrusions 54 and 13 mesh with the solidified filler 80, the filler 80 does not shift in the direction along the inner surface of the steel pipe member 51b and the outer surface of the support pile 10, and the intermediate grade steel pipe 50b and the support pile do not shift. The load transmission to and from 10 can be improved.
  • the protrusions 13 and 54 may be formed by bending a reinforcing bar or a steel bar and fixing them by welding.
  • the steel pipe member 51b and the support pile 10 may be formed of a steel plate material with protrusions.
  • a ribbed steel pipe formed of a striped steel plate having protrusions in the vertical and horizontal directions on the surface of the steel plate and a ribbed steel plate having protrusions having a height of about 2 mm arranged in parallel may be used.
  • the striped steel plate or the ribbed steel pipe it is possible to reduce the construction cost and the process for welding and joining the protrusion 54 to the steel pipe member 51b and the protrusion 13 to the support pile 10.
  • the protrusions 13 and 54 integrally formed in advance improve the fixing strength of the slip prevention protrusion, the steel pipe member 51b of the intermediate grade steel pipe 50b can reduce the dimension in the height direction.
  • FIG. 10 is an explanatory view of a cross-sectional structure around an intermediate grade steel pipe 150b, which is a modification of the intermediate grade steel pipe 50b of the road structure 100 according to the first embodiment.
  • the intermediate grade steel pipe 50b for example, the first steel pipe pile 20a and the steel pipe column 30 can be joined by installing the support member 55b inside the steel pipe member 51b.
  • the intermediate grade steel pipe 150b of the modified example includes a support member 55b having the same structure as the support member 55a provided in the upper end grade steel pipe 50a inside the steel pipe member 51b.
  • the end surface 22a of the pile head 21a of the first steel pipe pile 20a abuts on the lower surface of the support member 55b.
  • the position of the intermediate grade steel pipe 150b in the central axis direction that is, the position in the height direction is determined.
  • a gap is formed between the inner surface of the steel pipe member 51b and the outer surface of the second steel pipe pile 20b, and the intermediate grade steel pipe 150b is formed by the amount of the gap. It can be moved in the horizontal direction with respect to the second steel pipe pile 20b. As shown in FIGS.
  • the support member 55a is formed by combining plate-shaped members in a cross shape, but may take other forms.
  • the support member 55a can hold the intermediate grade steel pipe 150b on the end surface 14 of the pile head 12, and may have another structure as long as it does not interfere with the injection of the filler 80.
  • the end surface 31 of the steel pipe column 30 is placed on the upper surface of the support member 55b.
  • the position of the steel pipe column 30 in the central axis direction that is, the position in the height direction is determined.
  • a gap is formed between the inner surface of the steel pipe member 51b and the outer surface of the steel pipe support column 30, and the steel pipe support column 30 has a gap with respect to the steel pipe member 51b by the amount of the gap. , Can be moved horizontally.
  • the intermediate grade steel pipe 150b includes a steel pipe member 51b which is a tubular body and a support member 55a, and joins the upper member and the lower member.
  • the steel pipe member 51b and the support member 55a are particularly referred to as a second eccentric joining member.
  • FIG. 11 is an explanatory view of a cross-sectional structure of an example of an intermediate grade steel pipe 150b, which is a modification of the intermediate grade steel pipe 50b of the road structure 100 according to the first embodiment.
  • the intermediate grade steel pipe 150b may include a bolt 57 screwed from the outside to the inside of the steel pipe member 51b.
  • the bolt 57 adjusts the positions of the lower member and the upper member constituting the support pile 10 with respect to the steel pipe member 51b, and temporarily fixes the bolt 57. After the filler 80 is filled and solidified inside the intermediate grade steel pipe 50b, the head of the bolt 57 may be removed.
  • the first steel pipe pile 20a and the second steel pipe pile 20a and the second steel pipe pile are driven into the ground 90 in parallel with the first direction in which the road extends and the second direction intersecting the first direction.
  • 20b a steel pipe column 30 connected above the first steel pipe pile 20a, an upper end grade steel pipe 50a installed at the upper end of the second steel pipe pile 20b or the steel pipe column 30, and two adjacent upper end grade steel pipes 50a.
  • a girder member 41 to be connected, an upper end grade steel pipe 50a, and a road slab 99 installed on the girder member 41 are provided.
  • the member located below is the lower member and the member joined above the lower member is the upper member among the first steel pipe pile 20a, the second steel pipe pile 20b, the steel pipe column 30, and the upper end grade steel pipe 50a.
  • the joint portion between the lower member and the upper member is joined by an eccentric joining member 60 that can be joined in a state where the central axis of the lower member and the central axis of the upper member are eccentric.
  • the central axis of the lower member located below and the upper member joined above the lower member is the amount of error.
  • the position can be adjusted by shifting it. Therefore, when the support pile 10 is erected on the ground 90, the accuracy of the position of the upper end grade steel pipe 50a can be easily ensured, and the road structure 100 can suppress the construction period and the cost while ensuring the accuracy.
  • the eccentric joining member 60 includes at least a first eccentric joining member 60a
  • at least one of the upper end grade steel pipes 50a includes a first eccentric joining member 60a including a tubular body.
  • the tubular body is larger than the outer shape of the steel pipe pile 20 and the outer shape of the steel pipe column 30, and is installed so as to surround the outer surface of the steel pipe pile 20 or the steel pipe column 30. Then, the gap formed between the tubular body and the steel pipe pile 20 or the steel pipe column 30 is filled with the filler 80. With this configuration, the position of the upper end grade steel pipe 50a can be easily adjusted even if there is an error in the position of the pile head 12 of the support pile 10.
  • a beam member connecting two intermediate grade steel pipes 50b adjacent to each other with the intermediate grade steel pipe 50b installed on the first steel pipe pile 20a, the second steel pipe pile 20b, or the steel pipe column 30. 40 and more are provided.
  • the eccentric joining member 60 includes at least the second eccentric joining member 60b, and is located below the first steel pipe pile 20a, the second steel pipe pile 20b, the steel pipe column 30, the upper end grade steel pipe 50a, and the intermediate grade steel pipe 50b.
  • the member to be joined is a lower member and the member joined above the lower member is an upper member, the joint portion between the lower member and the upper member is joined by the second eccentric joining member 60b.
  • the intermediate grade steel pipe 50b includes a second eccentric joint member 60b including a tubular body.
  • the tubular body is larger than the outer shape of the steel pipe pile 20 and the outer shape of the steel pipe column 30, and is installed so as to surround the outer surface of the steel pipe pile 20 or the steel pipe column 30.
  • the gap formed between the intermediate grade steel pipe 50b and the steel pipe pile 20 or the steel pipe column 30 is filled with the filler 80.
  • the installation position of the intermediate grade steel pipe 50b can be adjusted by the gap between the steel pipe member 51b and the support pile 10, so that the intermediate grade steel pipe 50b can be installed. It's easy.
  • FIG. 12 is a schematic view of the road structure 100 according to the first embodiment and the road structure 1000 of the comparative example.
  • the road structure 100 according to the first embodiment includes intermediate grade steel pipes 50b, and adjacent intermediate grade steel pipes 50b are connected to each other by a beam member 40. Therefore, as shown in FIG. 12A, the bending moment generated in the support pile 10a with respect to the input F due to the seismic force is suppressed by the intermediate grade steel pipe 50b, and the displacement ⁇ x is also suppressed.
  • the road structure 1000 of the comparative example neither the intermediate grade steel pipe 50b nor the beam member 40 is installed. Therefore, as shown in FIG. 12B, the bending moment generated in the support pile 10a with respect to the input F due to the seismic force is larger than that of the road structure 100 according to the first embodiment, and the displacement ⁇ x1 is also large.
  • the road structure 100 can improve the reliability.
  • superstructures such as a girder member 41 and a road slab 99 are directly provided on the upper part of the support pile 10 protruding from the ground 90. Therefore, when the depth of the slope is deep with respect to the planned road surface and the projecting length of the support pile 10 from the ground 90 becomes large, the road structure 1000 of the comparative example is opposed to the seismic force acting on the superstructure.
  • the road structure 1000 of the comparative example has a problem that it cannot be applied to a terrain in which the protruding height of the support pile 10 is larger than about 10 m.
  • the road structure 100 according to the first embodiment as described above, the bending moment and the displacement ⁇ x can be suppressed even if the protrusion length of the support pile 10 from the ground 90 is large. Therefore, the road structure 100 has an advantage that it can be installed regardless of the terrain.
  • the road structure 200 according to the second embodiment is a modification of the structure of at least a part of the eccentric joint members 60 with respect to the road structure 100 according to the first embodiment.
  • the changes to the first embodiment will be mainly described.
  • those having the same function in each drawing shall be indicated with the same reference numerals as those used in the description of the first embodiment.
  • FIG. 13 is an explanatory view of a cross-sectional structure around the upper end grade steel pipe 250a of the road structure 200 according to the second embodiment.
  • FIG. 14 is a top view of the upper end grade point steel pipe 250a of the road structure 200 according to the second embodiment.
  • the upper end grade steel pipe 250a of the road structure 200 according to the second embodiment includes a vertical girder joint 52a for connecting the steel pipe member 251a and the vertical girder 41a and a horizontal girder joint 53a for connecting the horizontal girder 41b, and has an upper surface 57a. Is flat.
  • An eccentric joining member 260 is joined to the end face 14 of the pile head 12 of the support pile 10.
  • the lower end surface of the eccentric joining member 260 is joined to the pile head 12 of the support pile 10, and the upper end surface is formed by the plate member 261.
  • the upper surface 262 of the plate member 261 is flat so that the lower end surface 254a of the steel pipe member 251a of the upper end grade steel pipe 250a can be placed.
  • the upper surface 262 of the plate member 261 is formed to be larger than the lower end surface 254a of the steel pipe member 251a. Therefore, the steel pipe member 251a of the upper end grade steel pipe 250a can be placed on the upper surface 262 of the eccentric joint member 260 so as to be displaced in the horizontal direction.
  • the support pile 10 and the upper end grade point steel pipe 250a can be joined in a state where the central axes are eccentric to each other by using the eccentric joining member 260.
  • the eccentric joining member 260 in the second embodiment may be referred to as a third eccentric joining member 260.
  • the upper surface 262 may be referred to as a joint surface.
  • FIG. 15 is a side view of the structure around the intermediate grade steel pipe 250b of the road structure 200 according to the second embodiment.
  • the eccentric joining member 260 may be used for joining the intermediate grade steel pipe 250b and the first steel pipe pile 20a.
  • the steel pipe member 251b of the intermediate grade steel pipe 250b has the same cross-sectional shape as the first steel pipe pile 20a.
  • the intermediate grade steel pipe 250b is composed of a steel pipe member 251b, a vertical beam joint 52b, and a horizontal beam joint 53b.
  • the intermediate grade steel pipe 250b may be integrated with the steel pipe column 30 in the first embodiment. With this configuration, the beam member 40 can be installed on the support pile 10a formed by joining using the eccentric joining member 260.
  • Embodiment 3 In the third embodiment, the construction method of the road structure 100 according to the first embodiment will be described.
  • steel pipe piles 20 are first driven into the ground 90 in parallel with the first direction in which the road extends and the second direction intersecting the first direction. This process is called a steel pipe pile driving process.
  • a hole is drilled in the ground 90 using a down-the-hole hammer or the like to form a hole 95 in which the steel pipe pile 20 is built.
  • the hole 95 penetrates the sedimentary layer 92 on the surface 94 side of the ground 90 and reaches the support layer 93.
  • FIG. 16 is an explanatory view of a state in which the steel pipe pile 20 is built in the hole 95.
  • the portion on the right side from the center line of FIG. 16 shows the structure in the cross section including the central axis of the steel pipe pile 20.
  • the steel pipe pile 20 is built in the hole 95 so that the tip reaches the bottom surface 96 of the hole 95.
  • the filler 80 is injected from the opening at the upper end of the steel pipe pile 20.
  • the filler 80 for example, mortar or concrete is used.
  • the filler 80 passes through the hollow tubular steel pipe pile 20 and connects the hole 95 and the outer surface of the steel pipe pile 20 from the through hole 15 provided at the end of the steel pipe pile 20 on the bottom surface 96 side of the hole 95. It flows into the gap 97 between them.
  • the filler 80 that has flowed into the gap 97 rises in the gap 97 as the space inside the steel pipe pile 20 is filled with the filler 80. If it can be confirmed that the filler 80 flows out from the gap 97 from the surface 94 of the ground 90, it can be confirmed that the gap 97 between the steel pipe pile 20 and the hole 95 is filled with the filler 80. When the filler 80 is directly filled from the surface 94 of the ground 90 into the gap 97 between the steel pipe pile 20 and the hole 95, it is difficult to evenly fill the filler 80 around the steel pipe pile 20.
  • the surface of the hole 95 may not be smooth and earth and sand may be mixed in the filler 80, or the filler 80 may not be sufficiently filled up to the bottom surface 96. If the filling material 80 is insufficiently filled, the bearing capacity of the steel pipe pile 20 may not be able to secure the design value. However, according to the steel pipe pile driving step in the third embodiment, the steel pipe pile 20 is surely driven into the ground 90 by performing as described above.
  • a plurality of steel pipe piles 20 are used for road structures 100 and 200.
  • the plurality of steel pipe piles 20 are all driven into the ground 90 by the above-mentioned steel pipe pile driving step.
  • the steel pipe column 30 is temporarily joined to the first steel pipe pile 20a among the plurality of steel pipe piles 20, and the support pile 10a is temporarily assembled. Further, the upper end grade steel pipe 50a is temporarily joined to the pile head 12 of the support pile 10a and the pile head 21b of the second steel pipe pile 20b among the plurality of steel pipe piles 20.
  • Temporary joining is to temporarily install the steel pipe column 30, the upper end grade steel pipe 50a, and the intermediate grade steel pipe 50b on the steel pipe pile 20 by using the formwork jig 70. This is called a temporary joining process. The details of the temporary joining process will be described below.
  • FIG. 17 is an explanatory diagram of the structure of the formwork jig 70 used in the temporary joining step of the third embodiment.
  • FIG. 17 shows a diagram when the upper end grade steel pipe 50a is installed on the steel pipe pile 20, but the method of using the formwork jig 70 is the same even when the intermediate grade steel pipe 50b is installed.
  • the formwork jig 70 is used on the pile head 21 of the steel pipe pile 20.
  • the formwork jig 70 includes a bracket 71 that supports the formwork plate 74.
  • the bracket 71 is connected to the fixing band 73.
  • the fixing band 73 is detachably fixed to the steel pipe pile 20 so as to surround the outer surface of the steel pipe pile 20, and fixes the position of the bracket 71.
  • the process of installing the formwork jig 70 on the steel pipe pile 20 by the fixing band 73 is particularly called a formwork installation process.
  • the formwork installation process is included in the temporary joining process.
  • the intermediate grade steel pipe 50b is installed so as to bring the form plate 74 of the form jig 70 into contact with the lower end surface of the steel pipe member 51b.
  • This process is called a cylinder installation process.
  • the cylinder installation process is included in the joining process.
  • the formwork plate 74 is installed so that the filler 80 injected into the intermediate grade steel pipe 50b does not leak out.
  • the bracket 71 includes an adjustment bolt 75.
  • the tip of the adjusting bolt 75 comes into contact with the outer peripheral surface of the steel pipe member 51b of the intermediate grade steel pipe 50b placed on the form plate 74.
  • the adjusting bolt 75 is screwed with the nut member 76, so that the position of the tip can be adjusted with high accuracy and the position of the steel pipe member 51b of the intermediate grade steel pipe 50b can be temporarily fixed.
  • the step of adjusting and fixing the horizontal position of the steel pipe member 51b of the intermediate grade steel pipe 50b in this way is called a fixing step.
  • the fixing step is included in the temporary joining step.
  • the steel pipe column 30 is built in the intermediate grade steel pipe 50b. This is called the steel pipe support building process.
  • the steel pipe support building process is included in the temporary joining process.
  • the upper end grade steel pipe 50a is attached to the pile head 12 of the support pile 10a and the second steel pipe pile 20b to which the steel pipe column 30 is connected to the first steel pipe pile 20a.
  • the installation of the upper end grade steel pipe 50a is carried out by a formwork installation step, a cylinder installation step, and a fixing step in the same manner as the installation of the intermediate grade point steel pipe 50b at the pile head 21 of the steel pipe pile 20.
  • the beam member 40 is installed. This process is called a beam member installation process. Further, the girder member 41 is installed after the upper end grade point steel pipe 50a is installed. This process is called a girder member installation process.
  • the beam member installation process and the girder member installation process can be included in the temporary joining process.
  • the support piles 10a and 10b can be temporarily assembled by using the formwork jig 70 as described above without injecting the filler 80 into the grade steel pipe 50. .. Therefore, a lining plate (not shown) can be installed on the temporarily assembled support piles 10a and 10b, and the support piles 10a and 10b can be erected one after another in the first direction along the road. That is, the steel pipe placing process and the temporary joining process are alternately repeated until the support piles 10a and 10b for the entire length of the road or the predetermined length of the road are completed. The above steps are collectively called the support pile erection process.
  • the graded steel pipe 50 is a general term for the upper end graded steel pipe 50a and the intermediate graded steel pipe 50b.
  • the injection solidification step may be carried out for all the graded steel pipes 50 after the support piles 10a and 10b in the temporarily assembled state for the entire length of the road are erected.
  • the road structure 100 When the road structure 100 is installed without using the formwork jig 70, the first support pile 10 is erected in the first direction along the road, and the filler 80 injected into the grade steel pipe 50 is solidified and then covered. The formwork is installed on the support pile 10. Then, a heavy machine is placed on the installed lining plate, and the next support pile 10 is built. In the case of such a process, the injection and solidification step of the filler 80 is required every time the support pile 10 is built, so that the construction period becomes long. On the other hand, the road structure 100 has an advantage that the construction period can be shortened because the number of injection and solidification steps of the filler 80 can be suppressed by using the formwork jig 70.
  • the lining slab is removed after the injection solidification process is completed, and the road floor slab 99 is installed.
  • FIG. 18 is a side view showing an example of the lining plate.
  • the lining plate is placed on the support pile 10 temporarily assembled when the steel pipe pile driving process and the temporary joining process are repeated.
  • the lining plate 399 shown in FIG. 18 includes a temporary pile head block 350a. Therefore, the pile head block 350a is fitted into the pile head 12 without installing the upper end grade steel pipe 50a of the road structure 100 so that the lining plate 399 can be installed.
  • a lining plate 399 only the steel pipe pile driving process can be carried out collectively, so that the restraint time of the pile driver can be shortened.
  • Embodiment 4 a modification of the road structure 100 according to the first embodiment and the road structure 200 according to the second embodiment will be described.
  • FIG. 19 is an explanatory view of a cross-sectional structure of a modified example of the road structure 100 according to the first embodiment.
  • two support piles 10 are arranged in parallel in the second direction intersecting the first direction in which the road extends, but 2 More than one support pile 10 may be arranged in parallel.
  • the road structure 100 includes an oblique beam 48 that connects between the upper end grade steel pipe 50a and the intermediate grade steel pipe 50b or between two intermediate grade steel pipes 50b and is inclined with respect to the cross girder 41b. You may have.
  • the oblique beam 48 connects two graded steel pipes 50 located diagonally to a rectangular structure composed of a support pile 10 and a cross girder 41b or a cross beam 40b.
  • deformation of the frame is suppressed by the truss structure formed by the oblique beams 48, and the member stress can be reduced.
  • the road structure 100 shown in FIG. 19 may be configured by using the eccentric joining member 260 used in the road structure 200 of the second embodiment.
  • the upper end grade steel pipe 250a and the eccentric joint member 260 shown in the second embodiment are applied to the pile head 12 of the support pile 10, and the steel pipe column 30 is shown in FIG.
  • the double pipe type intermediate grade steel pipe 50b shown in is installed.
  • the upper end grade steel pipe 250a and the cross girder 41b are integrally manufactured in advance to form a grade girder.
  • the intermediate grade steel pipe 50b and the cross beam 40b are integrally manufactured in advance to form a grade beam.
  • the intermediate grade steel pipe 50b is also manufactured integrally with the cross beam 40b, and has the same effect. Further, the graded steel pipes 50 are joined to each other by diagonal members, and the truss structure of the diagonal beams 48 suppresses the deformation of the frame and reduces the member stress.
  • an eccentric joint member 260 is applied at the joint portion 11.
  • the lower end surface of the steel pipe column 30 is placed on the upper surface 262 of the eccentric joining member 260, and the horizontal position of the steel pipe column 30 is adjusted and joined.
  • 20 and 21 are examples of grade girders in which the upper end grade steel pipe 250a and the cross girder 41b are integrated.
  • the rating girder applied to the road structure 100 shown in FIG. 19 may be specifically in the form shown in FIGS. 20 and 21.
  • FIG. 22 and 23 are explanatory views of cross-sectional structures of modified examples of the road structure 100 according to the first embodiment and the road structure 200 according to the second embodiment.
  • the cross girders 41b of the road structures 100 and 200 may be formed so as to project to the slope side of the ground 90. This structure is applied when the slope slope is steep and it is difficult to install the steel pipe pile 20. Further, as shown in FIG. 23, the road structures 100 and 200 can be installed so as to widen the road provided by cutting the slope.
  • FIG. 24 is a side view of a modified example of the road structure 100 according to the first embodiment and the road structure 200 according to the second embodiment.
  • the seismic isolation member 5 may be provided on the pile head 12 of the support pile 10b having a small amount of protrusion from the ground 90. As a result, the load load on the road structures 100 and 200 as a whole is reduced.
  • Embodiment 5 a modification of the upper end grade steel pipe 50a and the intermediate grade steel pipe 150b of the road structure 100 according to the first embodiment and the road structure 200 according to the second embodiment will be described.
  • each part of the road structure 100 according to the fifth embodiment those having the same function in each drawing shall be displayed with the same reference numerals as those used in the drawings of the first to fourth embodiments.
  • FIG. 25 is an explanatory view of a cross-sectional structure around the upper end grade point steel pipe 550a of the road structure 100 according to the fifth embodiment.
  • FIG. 25 (b) shows a cross section of the EE portion of FIG. 25 (a).
  • FIG. 26 is a top view and a side view of the upper end grade point steel pipe 550a of the road structure 100 according to the fifth embodiment. As shown in FIG. 25, the upper end grade point steel pipe 550a and the support pile 10 are joined by an eccentric joining member 560a.
  • the eccentric joining member 560a is a part of the upper end grade steel pipe 550a and is for being combined with the pile head 12 of the support pile 10 so that the position of the upper end grade steel pipe 550a with respect to the pile head 12 can be adjusted. .. That is, the upper end grade steel pipe 550a can be joined to the support pile 10 by the eccentric joining member 560a in a state where the positions of the support pile 10 and the central axis are deviated from each other.
  • the eccentric joining member 560a for joining the upper end grade steel pipe 550a and the pile head 12 according to the fifth embodiment may be particularly referred to as a fourth eccentric joining member.
  • the eccentric joining member 560a has a cylindrical insertion member 61 and a rib member 62 joined to the outer peripheral surface of the insertion member 61 and extending radially.
  • the insertion member 61 and the rib member 62 are arranged inside the steel pipe member 51a, which is a tubular body constituting the upper end grade steel pipe 550a, and the lower portion projects downward from the lower end of the steel pipe member 51a.
  • FIG. 27 is a cross-sectional view of the FF portion of FIG. 26 (b).
  • the lower plate 59 joined to the steel pipe member 51a of the upper end grade steel pipe 550a includes an opening 59a in which the insertion member 61 projects from the inside of the steel pipe member 51a.
  • the opening 59a is opened to the extent that the insertion member 61 is inserted.
  • the rib member 62 includes an internal rib member 62b arranged inside the steel pipe member 51a and an outer rib member 62a joined below the lower plate 59. That is, the rib member 62 is joined to the inside of the steel pipe member 51a and the outside of the steel pipe member 51a, respectively.
  • the outer rib member 62a and the inner rib member 62b do not have to be installed depending on the strength and rigidity of the insertion member 61.
  • the upper ends of the insertion member 61 and the internal rib member 62b are fixed to the upper plate 58 constituting the upper surface 57a of the upper end grade steel pipe 550a by welding. Further, the lower end of the internal rib member 62b is joined to the lower plate 59 by welding. The internal rib member 62b is also joined to the outer peripheral surface of the insertion member 61, and connects the upper plate 58, the lower plate 59, and the insertion member 61 to ensure strength and rigidity.
  • the outer rib member 62a is arranged below the lower plate 59 and is joined to the lower surface of the lower plate 59, and is also joined to the outer peripheral surface of the insertion member 61.
  • the outer rib member 62a connects the lower plate 59 and the insertion member 61 to ensure strength and rigidity.
  • the upper plate 58 joined to the upper part of the upper end grade steel pipe 50a has two filling holes 56a penetrating the plate-shaped member.
  • the filling holes 56a are provided at symmetrical positions with the insertion member 61 in between.
  • the lower plate 59 is also provided with two filling holes 56a like the upper plate 58.
  • the filling hole 56a is a hole for injecting the filling material 80 into the space formed between the insertion member 61 and the pile head 12. That is, in a state where the upper end grade steel pipe 50a is placed above the pile head 12, the filling hole 56a is formed between the outside and the space inside the steel pipe member 51a and the insertion member 61 and the pile head 12. Communicate with space.
  • an injection pipe (not shown) is inserted into the inside through the filling hole 56a of the upper plate 58, and the filler is injected into the filling hole 56a of the lower plate 59.
  • the filler 80 joins the upper end grade steel pipe 50a and the pile head 12 by filling and solidifying the inside of the pile head 12 into which the eccentric joining member 560a which is a part of the upper end grade steel pipe 50a is inserted.
  • the tip of the pile head 12 is open, and the filler receiving plate 16 is installed in the internal space.
  • the filler receiving plate 16 is arranged below the lower end of the insertion member 61 inserted into the pile head 12.
  • the filler receiving plate 16 is a member for supporting the filler 80 injected from the filling hole 56a and holding the filler inside the pile head 12.
  • the end surface 14 of the pile head 12 abuts on the lower surface of the lower plate 59 of the upper end grade steel pipe 50a. That is, the upper end grade point steel pipe 50a is placed on the end surface 14 of the support pile 10. As a result, the position of the upper end grade steel pipe 550a in the height direction is determined. The upper end grade steel pipe 50a can be shifted in the horizontal direction by the amount of the gap between the eccentric joining member 560a and the inner surface of the pile head 12. As a result, even if the position of the central axis of the support pile 10 is deviated, the upper end grade steel pipe 50a can be arranged at the position as designed.
  • the insertion member 61 is a cylindrical steel pipe.
  • the insertion member 61 is not limited to the cylindrical steel pipe, and may be a steel pipe having a rectangular cross section, an elliptical shape, an oval shape, or a polygonal shape. It is desirable that the insertion member 61 has the same strength and rigidity in the vertical direction and the horizontal direction of the paper surface in FIG. 26.
  • the insertion member 61 has a cylindrical shape, and the strength and rigidity are equal in all directions. The shape of the insertion member 61 can be appropriately changed according to the strength and rigidity required for the road structure 100.
  • the lower end of the insertion member 61 may be closed with the plate material 65.
  • the plate material 65 is an amount of the filler 80 required for joining the upper end grade steel pipe 50a and the support pile 10 by preventing the filler 80 from invading the inside of the insertion member 61 made of a cylindrical steel pipe. Can be suppressed.
  • the outer shape of the plate member 65 is formed larger than the cross-sectional shape of the insertion member 61 and protrudes from the outer peripheral surface of the insertion member 61, so that the insertion member 61 is pulled out from the pile head 12 after the filler 80 is solidified. The strength in the direction is high.
  • the eccentric joining member 560a using the insertion member 61 can also be applied to the intermediate grade steel pipe 150b according to the first embodiment.
  • FIG. 28 is an explanatory view of a cross-sectional structure around an intermediate grade steel pipe 550b of the road structure 100 according to the fifth embodiment.
  • the intermediate grade steel pipe 550b includes an eccentric joint member 560b like the upper end grade steel pipe 550a.
  • the eccentric joining member 560b includes an insertion member 61 provided so as to project from both the upper plate 58 and the lower plate 59, and a rib member 62 for joining the insertion member 61 with the upper plate 58 and the lower plate 59. ..
  • the insertion member 61 is joined to the upper plate 58 and the lower plate 59 by the rib member 62.
  • the eccentric joining member 560b included in the intermediate grade steel pipe 550b may be particularly referred to as a fifth eccentric joining member.
  • the insertion member 61 is arranged inside the steel pipe member 51b, and is arranged so as to penetrate the upper plate 58 and the lower plate 59.
  • the insertion member 61 may be directly joined to the upper plate 58 and the lower plate 59.
  • the insertion member 61 does not have to be configured to penetrate vertically as shown in FIG. 28, and is joined to the upper surface of the upper plate 58 and the lower surface of the lower plate 59, respectively, and is joined to the upper surface of the upper plate 58 and the lower plate 59, respectively. It may be configured to extend vertically from each of the lower surfaces of the above.
  • the insertion member 61 extending above the intermediate grade steel pipe 550b is inserted into the steel pipe column 30 which is an upper member.
  • the insertion member 61 extending below the intermediate grade steel pipe 550b is inserted into the first steel pipe pile 20a which is a lower member.
  • the insertion member 61 extending in the vertical direction from the intermediate grade steel pipe 550b is filled with the filler 80 in a state of being inserted between the steel pipe support 30 or the first steel pipe pile 20a, respectively, and the steel pipe support 30 and the intermediate grade steel pipe are filled.
  • the 550b and the first steel pipe pile 20a are joined.
  • the eccentric joining member 560b of the intermediate grade steel pipe 550b can be joined in a state where the central axis of the first steel pipe pile 20a, which is a lower member, and the central axis of the intermediate grade steel pipe 550b are shifted in the same manner as the upper end grade steel pipe 550a. Further, the eccentric joining member 560b can be joined in a state where the central axis of the intermediate grade steel pipe 550b and the central axis of the steel pipe column 30 are offset.
  • the steel pipe column 30 and the first steel pipe pile 20a are each provided with a filling hole 17, from which the filler 80 is filled.
  • the filler 80 is solidified to join the intermediate grade steel pipe 550b, the steel pipe column 30, and the first steel pipe pile 20a.
  • the cross-sectional structure of the steel pipe member 51b of the intermediate grade steel pipe 550b according to the fifth embodiment has the same structure as that of FIG. 27.
  • the filling hole 56a may not be provided.
  • the eccentric joining member 560a includes an insertion member 61 projecting toward the pile head 12 of the support pile 10 which is a lower member.
  • the insertion member 61 is smaller than the outer shape of the support pile 10, and is surrounded and installed on the inner surface of the support pile 10.
  • the gap formed between the insertion member 61 and the support pile 10 is filled with the filler 80.
  • the eccentric joint member 560a is arranged inside the pile head 12 of the support pile 10, so that the outer shape of the joint portion does not become large.
  • the upper end grade steel pipe 550a includes an upper plate 58 forming the upper surface and being joined to the girder member 41, and a lower plate 59 forming the lower surface and being joined to the girder member 41.
  • the insertion member 61 is joined to the lower surface of the upper plate 58, penetrates the steel pipe member 51a and the lower plate 59, and is arranged so as to project downward. With this configuration, the upper end grade point steel pipe 50a is firmly joined to the support pile 10 which is a lower member via the eccentric joining member 560a.
  • the lower member is the lower member and is joined above the lower member.
  • the joint portion between the lower member and the upper member is joined by the eccentric joining member 560b.
  • the intermediate grade steel pipe 550b includes an eccentric joining member 560b.
  • the eccentric joining member 560b includes an insertion member 61 projecting toward the upper member and the lower member.
  • the insertion member 61 is smaller than the outer shape of the steel pipe pile 20 or the steel pipe column 30, and is surrounded and installed on the inner surface of the steel pipe pile 20 or the steel pipe column 30.
  • the gap formed between the insertion member 61 and the steel pipe pile 20 or the steel pipe column 30 is filled with the filler 80.
  • the intermediate grade steel pipe 550b is provided with the eccentric joint member 560b, so that the steel pipe pile 20 and the steel pipe column 30 can be formed without increasing the outer shape of the steel pipe pile 20 and the steel pipe column 30. It can be joined in an eccentric state.
  • the eccentric joining members 560a and 560b according to the fifth embodiment can appropriately change the cross-sectional shape of the insertion member 61.
  • FIG. 29 is an explanatory view of a cross-sectional structure of a modified example of the upper end grade steel pipe 550a according to the fifth embodiment.
  • FIG. 29 (b) shows a cross section of the KK portion of FIG. 29 (a).
  • the insertion member 61 is formed by joining members having a T-shaped cross section in a cross section. With this configuration, the insertion member 61 has the same strength and rigidity in the vertical direction and the horizontal direction of FIG. 29 (b). Further, since the insertion member 61 has a T-shaped cross section, the filler 80, the web member 63, and the flange member 64 mesh with each other, and the joining strength is high.
  • FIG. 30 is an explanatory view of the cross-sectional structure of the HH portion of FIG. 29 (a).
  • the insertion member 61 is also installed inside the steel pipe member 51a.
  • the filler 80 does not exist inside the steel pipe member 51a, but it may be filled if necessary. By filling the inside of the steel pipe member 51a with the filler 80, the strength and rigidity of the upper end grade steel pipe 550a can be further improved.
  • the insertion member 61 may be replaced with an H-shaped steel.
  • the upper end grade steel pipe 550a in which the insertion member 61 is made of H-shaped steel has different strength and rigidity in the vertical direction and the horizontal direction in the cross section corresponding to FIG. 29 (b), but is required for the road structure 100. It can be appropriately changed depending on the strength and rigidity of the upper end grade steel pipe 550a. By using the H-shaped steel for the insertion member 61, the cost related to the upper end grade steel pipe 550a can be reduced.
  • the insertion member 61 according to the modified example of the upper end grade steel pipe 550a according to the fifth embodiment shown in FIGS. 29 and 30 can also be applied to the intermediate grade steel pipe 550b.
  • the present invention has been described above based on the embodiment, the present invention is not limited to the configuration of the above-described embodiment.
  • the combination of the components is not limited to the combination in the embodiment, and the combination of the components described in each embodiment can be appropriately changed.
  • the gist (technical scope) of the present invention includes various changes, applications, and uses made by those skilled in the art as necessary.
  • Seismic isolation member 10 support pile, 10a support pile, 10b support pile, 11 joint, 12 pile head, 13 protrusion, 14 end face, 15 through hole, 20 steel pipe pile, 20a 1st steel pipe pile, 20b 2nd steel pipe pile , 21 pile head, 21a pile head, 21b pile head, 22a end face, 30 steel pipe column, 30b second steel pipe pile, 31 end face, 40 beam member, 40a vertical beam, 40b cross beam, 41 girder member, 41a vertical girder, 41b horizontal Girder, 42 floor slab fixing member, 43 connecting part, 44 splicing plate, 48 beam, 50 graded steel pipe, 50a upper end graded steel pipe, 50b intermediate graded steel pipe, 51a steel pipe member, 51b steel pipe member, 52a vertical girder joint , 52b vertical beam joint, 53a horizontal girder joint, 53b cross beam joint, 54 protrusion, 55a support member, 55b support member, 56a filling hole, 56b filling port, 57 bolt, 57a upper surface, 58

Abstract

The purpose of the present invention is to provide: a road structure whereby installation accuracy can be ensured regardless of topography, and the construction period and costs can be controlled; a forming jig to be used in the construction of the road structure; and a construction method for the road structure.　This road structure includes a steel pipe pile including a first steel pipe pile and a second steel pipe pile to be staked in the ground juxtaposed in a first direction in which a road extends and in a second direction that crosses the first direction; a steel pipe prop connected above the first steel pipe pile; an upper end joint steel pipe disposed on an upper end of the second steel pipe pile or the steel pipe prop; a girder member that connects two adjacent upper end joint steel pipes; and a road floor slab disposed on the upper end joint steel pipe and the girder member. In a case in which, of the first steel pipe pile, the second steel pipe pile, the steel pipe prop, and the upper end joint steel pipe, the members positioned below are called lower members, and the members joined above the lower members are called upper members, joining sections between the lower members and the upper members are joined by eccentric joint members capable of joining so that a center axis of the lower member and a center axis of the upper member are eccentric to each other.

Description

道路構造、型枠治具、及び道路構造の施工方法Road structure, formwork jig, and road structure construction method
　本発明は、山間部などにおいて道路を構築する際に、地形の影響を受けずに道路に必要な傾斜及び幅員を確保できる道路構造、道路構造の施工に用いる型枠治具、及び道路構造の施工方法に関する。 The present invention relates to a road structure capable of securing the slope and width required for a road without being affected by the terrain when constructing a road in a mountainous area, a formwork jig used for construction of the road structure, and a road structure. Regarding the construction method.
　山間部に道路を構築する場合は、既存の斜面の道路面計画高さより高い部分は切土を行い、また、低い部分には盛土を行い、路面を平坦に成形した構造が用いられる。この場合、既存の斜面を改変するため、植栽及び生物の居住環境に及ぼす影響が大きく、環境保全の面で好ましくない場合が多い。また、谷合に橋梁を設置する場合には、大規模な橋脚を斜面に構築する必要があり、大規模な掘削及び基礎工事が必要である。この場合、環境に対する影響が大きいうえ、工期が長くなりコストも大きくなる。そこで、斜面に杭を設置し、その上に桁及び道路床版を設置する桟橋形式の道路構造が考案されている（例えば、特許文献１参照）。 When constructing a road in a mountainous area, a structure is used in which the road surface is flatly formed by cutting the part higher than the planned road surface height of the existing slope and embanking the lower part. In this case, since the existing slope is modified, it has a great influence on the living environment of plants and organisms, which is often unfavorable in terms of environmental protection. In addition, when installing a bridge in a valley, it is necessary to construct a large-scale pier on the slope, and large-scale excavation and foundation work are required. In this case, the impact on the environment is large, the construction period is long, and the cost is high. Therefore, a pier-type road structure has been devised in which piles are installed on a slope and girders and road slabs are installed on the piles (see, for example, Patent Document 1).
特開２００２－２５６５０４号公報JP-A-2002-256504
　特許文献１に開示されているところによれば、地盤に打設される鋼管杭の上に杭頭ブロックが接合され、杭頭ブロックの上に桁材が設置され、桁材上に道路床版が構築されている。この道路構造は、斜面から突出した鋼管杭の上部に桁及び床版等の上部工を直接設けており、計画道路面に対して斜面の深さが深い地形に対しては、鋼管杭の突出長が多大になる。この場合、鋼管杭の打設の精度及び鋼管杭の精度の影響により、鋼管杭の杭頭の位置の誤差が大きくなる。従って、杭頭ブロック及び桁材は、地形の影響を受けて複数の鋼管杭のそれぞれの杭頭の位置の誤差を調整して設置される必要があるため、道路構造の設置の工期が長期化し、コストも増大するという課題があった。 According to what is disclosed in Patent Document 1, a pile head block is joined on a steel pipe pile to be driven into the ground, a girder is installed on the pile head block, and a road slab is placed on the girder. Has been built. In this road structure, superstructures such as girders and floor slabs are directly provided on the upper part of the steel pipe pile protruding from the slope, and the steel pipe pile protrudes for terrain where the slope depth is deep with respect to the planned road surface. The length becomes great. In this case, the error in the position of the pile head of the steel pipe pile becomes large due to the influence of the accuracy of driving the steel pipe pile and the accuracy of the steel pipe pile. Therefore, the pile head block and girder must be installed by adjusting the error of the position of each pile head of a plurality of steel pipe piles due to the influence of the terrain, so that the construction period for installing the road structure is prolonged. There was a problem that the cost also increased.
　本発明は上記課題を解決するものであって、地形によらず設置の精度を確保し、工期及びコストを抑制できる道路構造、道路構造の施工に用いる型枠治具、及び道路構造の施工方法を提供することを目的とする。 The present invention solves the above problems, and is a road structure capable of ensuring installation accuracy regardless of the terrain and suppressing the construction period and cost, a formwork jig used for the construction of the road structure, and a construction method of the road structure. The purpose is to provide.
　本発明に係る道路構造は、道路が延びる第１方向及び前記第１方向に交差する第２方向に並列して地盤に打設される第１鋼管杭及び第２鋼管杭を含む鋼管杭と、前記第１鋼管杭の上方に接続される鋼管支柱と、前記第２鋼管杭又は前記鋼管支柱の上端に設置される上端格点鋼管と、隣り合う２つの前記上端格点鋼管を連結する桁部材と、前記上端格点鋼管及び前記桁部材の上に設置される道路床版と、を備え、前記第１鋼管杭、前記第２鋼管杭、前記鋼管支柱、及び前記上端格点鋼管のうち、下方に位置する部材を下方部材とし、前記下方部材の上方に接合される部材を上方部材としたときに、前記下方部材と前記上方部材との接合部は、前記下方部材の中心軸と前記上方部材の中心軸とを偏心させた状態で接合できる偏心接合部材により接合される。 The road structure according to the present invention includes a steel pipe pile including a first steel pipe pile and a second steel pipe pile placed in parallel in the first direction in which the road extends and the second direction intersecting the first direction. A girder member that connects a steel pipe column connected above the first steel pipe pile, an upper end grade steel pipe installed at the upper end of the second steel pipe pile or the steel pipe column, and two adjacent upper end grade steel pipes. Of the first steel pipe pile, the second steel pipe pile, the steel pipe strut, and the upper end grade steel pipe. When the member located below is the lower member and the member joined above the lower member is the upper member, the joint portion between the lower member and the upper member is the central axis of the lower member and the upper member. It is joined by an eccentric joining member that can be joined in a state where the central axis of the member is eccentric.
　本発明に係る型枠治具は、道路が延びる第１方向及び前記第１方向に交差する第２方向に並列して地盤に打設される鋼管杭と、前記鋼管杭の上方に接続される鋼管支柱と、前記鋼管杭又は前記鋼管支柱に設置される格点鋼管と、を備え、前記鋼管杭、前記鋼管支柱、及び前記格点鋼管のうち、下方に位置する部材を下方部材とし、前記下方部材の上方に接合される部材を上方部材としたときに、前記下方部材と前記上方部材との接合部は、前記下方部材の中心軸と前記上方部材の中心軸とを偏心させた状態で接合できる偏心接合部材により接合され、前記偏心接合部材は、筒体を備え、前記筒体は、前記鋼管杭又は前記鋼管支柱の外周面を包囲して設置され、前記筒体と前記鋼管杭又は前記鋼管支柱との間に形成される間隙は、充填材が充填される、道路構造の前記偏心接合部材を設置する際に用いる型枠治具であって、前記下方部材の外周面を包囲し前記筒体の下端に接して設置される型枠板と、前記筒体の水平位置を調整し固定する調整ボルトと、前記型枠板及び前記調整ボルトを支持し、前記下方部材に着脱自在に固定されるブラケットと、を備える。 The form jig according to the present invention is connected to a steel pipe pile placed in parallel in the first direction in which the road extends and the second direction intersecting the first direction, and above the steel pipe pile. A steel pipe strut and a steel pipe pile or a graded steel pipe installed on the steel pipe strut are provided, and among the steel pipe pile, the steel pipe strut, and the graded steel pipe, a member located below is used as a lower member. When the member joined above the lower member is an upper member, the joint portion between the lower member and the upper member is in a state where the central axis of the lower member and the central axis of the upper member are eccentric. It is joined by an eccentric joining member that can be joined, the eccentric joining member includes a tubular body, and the tubular body is installed so as to surround the outer peripheral surface of the steel pipe pile or the steel pipe column, and the tubular body and the steel pipe pile or The gap formed between the steel pipe column and the steel pipe column is a mold jig used when installing the eccentric joining member of the road structure, which is filled with a filler, and surrounds the outer peripheral surface of the lower member. A mold plate installed in contact with the lower end of the cylinder, an adjustment bolt for adjusting and fixing the horizontal position of the cylinder, the mold plate and the adjustment bolt are supported and detachably attached to the lower member. It is provided with a bracket to be fixed.
　本発明に係る道路構造の施工方法は、道路が延びる第１方向及び前記第１方向に交差する第２方向に並列して地盤に打設される鋼管杭と、前記鋼管杭の上方に接続される鋼管支柱と、前記鋼管杭又は前記鋼管支柱に設置される格点鋼管と、を備え、前記鋼管杭、前記鋼管支柱、及び前記格点鋼管のうち、下方に位置する部材を下方部材とし、前記下方部材の上方に接合される部材を上方部材としたときに、前記下方部材と前記上方部材との接合部は、前記下方部材の中心軸と前記上方部材の中心軸とを偏心させた状態で接合できる偏心接合部材により接合される、道路構造の施工方法であって、前記下方部材と前記上方部材を接合する仮接合工程を備え、前記仮接合工程は、前記偏心接合部材が備える筒体を前記下方部材の上端部の外周面を包囲して設置する筒体設置工程と、型枠治具が備える型枠板を前記下方部材の外周面を包囲し前記筒体の下端に接するように設置する型枠設置工程と、調整ボルトにより前記筒体の水平位置を調整し固定する固定工程と、を備える。 The construction method of the road structure according to the present invention is connected to a steel pipe pile to be driven into the ground in parallel in a first direction in which the road extends and a second direction intersecting the first direction, and above the steel pipe pile. A steel pipe strut and a steel pipe pile or a graded steel pipe installed on the steel pipe strut are provided, and a member located below the steel pipe pile, the steel pipe strut, and the graded steel pipe is used as a lower member. When the member joined above the lower member is an upper member, the joint portion between the lower member and the upper member is in a state in which the central axis of the lower member and the central axis of the upper member are eccentric. It is a method of constructing a road structure that is joined by an eccentric joining member that can be joined by, and includes a temporary joining step of joining the lower member and the upper member, and the temporary joining step is a tubular body included in the eccentric joining member. A cylinder installation step of surrounding the outer peripheral surface of the upper end portion of the lower member and installing the mold plate provided with the mold jig so as to surround the outer peripheral surface of the lower member and contact the lower end of the cylinder. It includes a mold installation step for installing and a fixing step for adjusting and fixing the horizontal position of the cylinder with adjusting bolts.
　本発明によれば、偏心接合部材により、地盤からの突出長さが多大な杭においても杭頭の位置精度が向上し、上端格点鋼管及び桁部材の位置精度の調整を抑制できるため、地形によらず工期及びコストを抑えて道路構造を設置できる。 According to the present invention, the eccentric joining member improves the position accuracy of the pile head even in a pile having a large protrusion length from the ground, and can suppress the adjustment of the position accuracy of the upper end grade steel pipe and the girder member. Regardless of the construction period and cost, the road structure can be installed.
実施の形態１に係る道路構造１００の模式図である。It is a schematic diagram of the road structure 100 which concerns on Embodiment 1. FIG. 図１の道路構造１００のＡ－Ａ部の断面構造の説明図である。It is explanatory drawing of the cross-sectional structure of the AA part of the road structure 100 of FIG. 図１の道路構造１００のＢ－Ｂ部の断面構造の説明図である。It is explanatory drawing of the cross-sectional structure of the BB part of the road structure 100 of FIG. 図１の道路構造１００のＣ－Ｃ部の断面構造の説明図である。It is explanatory drawing of the cross-sectional structure of the CC part of the road structure 100 of FIG. 図１の道路構造１００の桁部材４１の配置図である。It is a layout drawing of the girder member 41 of the road structure 100 of FIG. 実施の形態１に係る道路構造１００の上端格点鋼管５０ａ周辺の断面構造の説明図である。It is explanatory drawing of the cross-sectional structure around the upper end grade point steel pipe 50a of the road structure 100 which concerns on Embodiment 1. FIG. 実施の形態１に係る道路構造１００の上端格点鋼管５０ａの上面図である。It is a top view of the upper end grade point steel pipe 50a of the road structure 100 which concerns on Embodiment 1. FIG. 実施の形態１に係る道路構造１００の中間格点鋼管５０ｂ周辺の断面構造の説明図である。It is explanatory drawing of the cross-sectional structure around the intermediate grade steel pipe 50b of the road structure 100 which concerns on Embodiment 1. FIG. 実施の形態１に係る道路構造１００の中間格点鋼管５０ｂの上面図である。It is a top view of the intermediate grade steel pipe 50b of the road structure 100 which concerns on Embodiment 1. FIG. 実施の形態１に係る道路構造１００の中間格点鋼管５０ｂの変形例である中間格点鋼管１５０ｂ周辺の断面構造の説明図である。It is explanatory drawing of the cross-sectional structure around the intermediate grade steel pipe 150b which is a modification of the intermediate grade steel pipe 50b of the road structure 100 which concerns on Embodiment 1. FIG. 実施の形態１に係る道路構造１００の中間格点鋼管５０ｂの変形例である中間格点鋼管１５０ｂの一例の断面構造の説明図である。It is explanatory drawing of the cross-sectional structure of an example of the intermediate grade steel pipe 150b which is a modification of the intermediate grade steel pipe 50b of the road structure 100 which concerns on Embodiment 1. FIG. 実施の形態１に係る道路構造１００及び比較例の道路構造１０００の模式図である。It is a schematic diagram of the road structure 100 and the road structure 1000 of the comparative example which concerns on Embodiment 1. FIG. 実施の形態２に係る道路構造２００の上端格点鋼管２５０ａ周辺の断面構造の説明図である。It is explanatory drawing of the cross-sectional structure around the upper end grade point steel pipe 250a of the road structure 200 which concerns on Embodiment 2. FIG. 実施の形態２に係る道路構造２００の上端格点鋼管２５０ａの上面図である。It is a top view of the upper end grade point steel pipe 250a of the road structure 200 which concerns on Embodiment 2. FIG. 実施の形態２に係る道路構造２００の中間格点鋼管２５０ｂ周辺の構造の側面図である。It is a side view of the structure around the intermediate grade steel pipe 250b of the road structure 200 which concerns on Embodiment 2. FIG. 孔９５に鋼管杭２０を建て込んだ状態の説明図である。It is explanatory drawing of the state in which the steel pipe pile 20 is built in the hole 95. 実施の形態３の仮接合工程に用いられる型枠治具７０の構造の説明図である。It is explanatory drawing of the structure of the formwork jig 70 used in the temporary joining process of Embodiment 3. 覆工版の一例を示す側面図である。It is a side view which shows an example of a lining plate. 実施の形態１に係る道路構造１００の変形例の断面構造の説明図である。It is explanatory drawing of the cross-sectional structure of the modification of the road structure 100 which concerns on Embodiment 1. FIG. 上端格点鋼管２５０ａと横桁４１ｂとを一体化した格点桁の一例である。This is an example of a grade girder in which an upper end grade steel pipe 250a and a cross girder 41b are integrated. 上端格点鋼管２５０ａと横桁４１ｂとを一体化した格点桁の一例である。This is an example of a grade girder in which an upper end grade steel pipe 250a and a cross girder 41b are integrated. 実施の形態１に係る道路構造１００及び実施の形態２に係る道路構造２００の変形例の断面構造の説明図である。It is explanatory drawing of the cross-sectional structure of the modified example of the road structure 100 which concerns on Embodiment 1 and the road structure 200 which concerns on Embodiment 2. 実施の形態１に係る道路構造１００及び実施の形態２に係る道路構造２００の変形例の断面構造の説明図である。It is explanatory drawing of the cross-sectional structure of the modified example of the road structure 100 which concerns on Embodiment 1 and the road structure 200 which concerns on Embodiment 2. 実施の形態１に係る道路構造１００及び実施の形態２に係る道路構造２００の変形例の側面図である。It is a side view of the modified example of the road structure 100 which concerns on Embodiment 1 and the road structure 200 which concerns on Embodiment 2. 実施の形態５に係る道路構造１００の上端格点鋼管５５０ａ周辺の断面構造の説明図である。It is explanatory drawing of the cross-sectional structure around the upper end grade point steel pipe 550a of the road structure 100 which concerns on Embodiment 5. FIG. 実施の形態５に係る道路構造１００の上端格点鋼管５５０ａの上面図及び側面図である。It is a top view and the side view of the upper end grade point steel pipe 550a of the road structure 100 which concerns on Embodiment 5. FIG. 図２６（ｂ）のＦ－Ｆ部の断面図である。It is sectional drawing of the FF part of FIG. 26B. 実施の形態５に係る道路構造１００の中間格点鋼管５５０ｂ周辺の断面構造の説明図である。It is explanatory drawing of the cross-sectional structure around the intermediate grade steel pipe 550b of the road structure 100 which concerns on Embodiment 5. 実施の形態５に係る上端格点鋼管５５０ａの変形例の断面構造の説明図である。It is explanatory drawing of the cross-sectional structure of the modified example of the upper end grade point steel pipe 550a which concerns on Embodiment 5. 図２９（ａ）のＨ－Ｈ部の断面構造の説明図である。It is explanatory drawing of the cross-sectional structure of the HH part of FIG. 29 (a).
　以下、本発明の実施の形態を図面に基づいて説明する。なお、以下に説明する実施の形態によって本発明が限定されるものではない。各図は模式的に示すものであって、各部材の相対的な大きさや板厚等は図示する寸法に限定されるものではない。また、以下の図面では各構成部材の大きさの関係が実際のものとは異なる場合がある。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below. Each figure is schematically shown, and the relative size, plate thickness, etc. of each member are not limited to the dimensions shown. Further, in the drawings below, the relationship between the sizes of the constituent members may differ from the actual one.
　実施の形態１．
　図１は、実施の形態１に係る道路構造１００の模式図である。図２は、図１の道路構造１００のＡ－Ａ部の断面構造の説明図である。図３は、図１の道路構造１００のＢ－Ｂ部の断面構造の説明図である。図４は、図１の道路構造１００のＣ－Ｃ部の断面構造の説明図である。図５は、図１の道路構造１００の桁部材４１の配置図である。道路構造１００は、山間部等の起伏が大きい地盤に設置されるものである。道路構造１００は、例えば、山間部の斜面に沿って道路を設ける場合、斜面に沿って設けられた既設道路を拡幅する場合、又は山間部の沢部を跨いで道路を通す場合等に用いられる構造である。実施の形態１においては、山間部の斜面に沿って設置された道路構造１００について説明する。 Embodiment 1.
FIG. 1 is a schematic view of the road structure 100 according to the first embodiment. FIG. 2 is an explanatory view of a cross-sectional structure of a portion AA of the road structure 100 of FIG. FIG. 3 is an explanatory view of the cross-sectional structure of the BB portion of the road structure 100 of FIG. FIG. 4 is an explanatory view of the cross-sectional structure of the CC portion of the road structure 100 of FIG. FIG. 5 is a layout diagram of the girder member 41 of the road structure 100 of FIG. The road structure 100 is installed on a ground with large undulations such as a mountainous area. The road structure 100 is used, for example, when a road is provided along a slope in a mountainous area, when an existing road provided along the slope is widened, or when a road is passed across a swamp in a mountainous area. It is a structure. In the first embodiment, the road structure 100 installed along the slope of the mountainous area will be described.
　道路構造１００は、地盤９０に打設された複数の鋼管杭２０を備える。鋼管杭２０は、地盤９０に設けられた孔に、杭頭１２が地盤９０の表面９４から突出するように建てられる。地盤９０は、ダウンザホールハンマ等によって堆積層９２を貫通し、支持層９３まで削孔されている。地盤９０に設けられた孔に鋼管杭２０を建て込み、孔にコンクリート又はモルタル等の充填材が充填されることにより、鋼管杭２０は、地盤９０に立設される。 The road structure 100 includes a plurality of steel pipe piles 20 placed in the ground 90. The steel pipe pile 20 is built in a hole provided in the ground 90 so that the pile head 12 projects from the surface 94 of the ground 90. The ground 90 penetrates the sedimentary layer 92 by a down-the-hole hammer or the like, and is drilled to the support layer 93. The steel pipe pile 20 is erected in the ground 90 by building the steel pipe pile 20 in the hole provided in the ground 90 and filling the hole with a filler such as concrete or mortar.
　鋼管杭２０は、道路が延びる方向である第１方向に並列して地盤９０に複数打設される。図５に示される様に、桁部材４１が例えば斜面などに沿って曲がって配置されており、道路は、その桁部材４１の上に道路床版９９を設置して構成される。第１方向は、この道路に沿った方向である。道路構造１００の複数の鋼管杭２０は、第１鋼管杭２０ａと第２鋼管杭２０ｂとを含む。第１鋼管杭２０ａは、上方に鋼管支柱３０が接続される。鋼管支柱３０は、道路床版９９及び桁部材４１が設置される地盤９０の表面９４からの高さに応じて、第１鋼管杭２０ａの上端に接合される。図１中に示されている三角形の記号は、第１鋼管杭２０ａと鋼管支柱３０との接合部１１を示している。接合部１１においては、偏心接合部材６０（図６、図８参照）が、地盤９０側に位置する下方部材と下方部材の上方に接合される上方部材とを接合している。なお、地盤９０に立設された柱状の構造を支持杭１０と称する場合がある。特に、上述した第１鋼管杭２０ａと鋼管支柱３０とを接合した構造は、支持杭１０ａと称する場合がある。 A plurality of steel pipe piles 20 are driven into the ground 90 in parallel with the first direction in which the road extends. As shown in FIG. 5, the girder member 41 is arranged so as to be bent along a slope or the like, and the road is configured by installing a road slab 99 on the girder member 41. The first direction is the direction along this road. The plurality of steel pipe piles 20 of the road structure 100 include a first steel pipe pile 20a and a second steel pipe pile 20b. A steel pipe column 30 is connected to the first steel pipe pile 20a above. The steel pipe column 30 is joined to the upper end of the first steel pipe pile 20a according to the height from the surface 94 of the ground 90 on which the road slab 99 and the girder member 41 are installed. The triangular symbol shown in FIG. 1 indicates the joint portion 11 between the first steel pipe pile 20a and the steel pipe column 30. In the joint portion 11, the eccentric joining member 60 (see FIGS. 6 and 8) joins the lower member located on the ground 90 side and the upper member joined above the lower member. The columnar structure erected on the ground 90 may be referred to as a support pile 10. In particular, the structure in which the above-mentioned first steel pipe pile 20a and the steel pipe column 30 are joined may be referred to as a support pile 10a.
　鋼管支柱３０は、第１鋼管杭２０ａの杭頭２１ａと接合され上方に延びている。鋼管支柱３０の杭頭１２には上端格点鋼管５０ａが接合されている。上端格点鋼管５０ａは、偏心接合部材６０を用いて鋼管支柱３０の杭頭１２と接合されている。 The steel pipe column 30 is joined to the pile head 21a of the first steel pipe pile 20a and extends upward. An upper end grade steel pipe 50a is joined to the pile head 12 of the steel pipe column 30. The upper end grade point steel pipe 50a is joined to the pile head 12 of the steel pipe column 30 by using an eccentric joining member 60.
　上端格点鋼管５０ａは、第１方向において隣り合う上端格点鋼管５０ａと桁部材４１により連結されている。第１方向に沿って設置されている桁部材４１を特に縦桁４１ａと呼ぶ。 The upper end grade steel pipe 50a is connected to the upper end grade steel pipe 50a adjacent to each other in the first direction by a girder member 41. The girder member 41 installed along the first direction is particularly referred to as a vertical girder 41a.
　図２～図４に示される様に、上端格点鋼管５０ａは、第１方向に交差する第２方向に並列して隣り合う上端格点鋼管５０ａと桁部材４１により連結されている。第２方向に沿って設置されている桁部材４１を特に横桁４１ｂと呼ぶ。 As shown in FIGS. 2 to 4, the upper end grade steel pipe 50a is connected to the adjacent upper end grade steel pipe 50a in parallel in the second direction intersecting the first direction by a girder member 41. The girder member 41 installed along the second direction is particularly referred to as a cross girder 41b.
　実施の形態１においては、図２～図４に示される様に、鋼管杭２０は、第１方向に交差する第２方向に沿って２本並べられている。横桁４１ｂは、第２方向に並べられた杭頭１２を連結している。桁部材４１は、第１方向及び第２方向に沿って設置され、それぞれ支持杭１０の杭頭１２を上端格点鋼管５０ａを介して連結している。桁部材４１及び上端格点鋼管５０ａの上面には、床版固定部材４２が設置されている。道路床版９９は、床版固定部材４２を介して桁部材４１及び上端格点鋼管５０ａに固定される。なお、鋼管杭２０は、第１方向に交差する第２方向に２本以上並べられていても良い。 In the first embodiment, as shown in FIGS. 2 to 4, two steel pipe piles 20 are arranged along the second direction intersecting the first direction. The cross girder 41b connects the pile heads 12 arranged in the second direction. The girder member 41 is installed along the first direction and the second direction, and connects the pile heads 12 of the support piles 10 via the upper end grade point steel pipe 50a, respectively. A floor slab fixing member 42 is installed on the upper surface of the girder member 41 and the upper end grade steel pipe 50a. The road floor slab 99 is fixed to the girder member 41 and the upper end grade steel pipe 50a via the floor slab fixing member 42. Two or more steel pipe piles 20 may be arranged in the second direction intersecting the first direction.
　横桁４１ｂは、中央部に連結部４３を備える。連結部４３には縦桁４１ａが接続されている。連結部４３に接続されている縦桁４１ａは、第１方向において隣り合う横桁４１ｂの連結部４３同士を接続している。 The cross girder 41b is provided with a connecting portion 43 at the center. A vertical girder 41a is connected to the connecting portion 43. The vertical girder 41a connected to the connecting portion 43 connects the connecting portions 43 of the horizontal girders 41b adjacent to each other in the first direction.
　図１に戻り、第２鋼管杭２０ｂは、上方に上端格点鋼管５０ａが接続されている。上端格点鋼管５０ａは、偏心接合部材６０を用いて第２鋼管杭２０ｂの杭頭１２と接合されている。第２鋼管杭２０ｂに接合されている上端格点鋼管５０ａは、支持杭１０ａに接合されている上端格点鋼管５０ａと同様に、第１方向及び第２方向に隣り合う上端格点鋼管５０ａと連結されている。なお、第２鋼管杭２０ｂは、支持杭１０ｂと称する場合がある。 Returning to FIG. 1, the upper end grade steel pipe 50a is connected to the upper side of the second steel pipe pile 20b. The upper end grade point steel pipe 50a is joined to the pile head 12 of the second steel pipe pile 20b by using an eccentric joining member 60. The upper end grade steel pipe 50a joined to the second steel pipe pile 20b is the same as the upper end grade steel pipe 50a joined to the support pile 10a with the upper end grade steel pipe 50a adjacent to each other in the first direction and the second direction. It is connected. The second steel pipe pile 20b may be referred to as a support pile 10b.
　図１に示される様に、支持杭１０ａには中間格点鋼管５０ｂが設けられている。実施の形態１において、中間格点鋼管５０ｂは、支持杭１０ａのうち鋼管支柱３０の中央部に設置されている。つまり、中間格点鋼管５０ｂは、道路構造１００のうち、地盤９０からの突出長さが多大な支持杭１０ａに設けられている。中間格点鋼管５０ｂは、隣り合う鋼管支柱３０に設けられた中間格点鋼管５０ｂと梁部材４０により連結されている。第１方向に沿って設置されている梁部材４０を、特に縦梁４０ａと呼ぶ。 As shown in FIG. 1, the support pile 10a is provided with an intermediate grade steel pipe 50b. In the first embodiment, the intermediate grade steel pipe 50b is installed in the central portion of the steel pipe column 30 of the support piles 10a. That is, the intermediate grade steel pipe 50b is provided on the support pile 10a having a large protrusion length from the ground 90 in the road structure 100. The intermediate grade steel pipe 50b is connected to the intermediate grade steel pipe 50b provided on the adjacent steel pipe columns 30 by a beam member 40. The beam member 40 installed along the first direction is particularly referred to as a vertical beam 40a.
　図４に示される様に、中間格点鋼管５０ｂは、第１方向に交差する第２方向において隣り合う支持杭１０に設置された中間格点鋼管５０ｂと梁部材４０により連結されている。第２方向に沿って設置されている梁部材４０を、特に横梁４０ｂと呼ぶ。 As shown in FIG. 4, the intermediate grade steel pipe 50b is connected to the intermediate grade steel pipe 50b installed on the supporting piles 10 adjacent to each other in the second direction intersecting the first direction by the beam member 40. The beam member 40 installed along the second direction is particularly referred to as a cross beam 40b.
　梁部材４０は、図１及び図３に示される様に傾斜して設置されていても良いし、図４に示される様に水平に設置されていても良い。また、中間格点鋼管５０ｂは、図１及び図４に示される様に鋼管支柱３０に設置されるものに限定されず、図３に示される様に第２鋼管杭３０ｂに設置されていても良い。 The beam member 40 may be installed at an angle as shown in FIGS. 1 and 3, or may be installed horizontally as shown in FIG. Further, the intermediate grade steel pipe 50b is not limited to the one installed on the steel pipe column 30 as shown in FIGS. 1 and 4, and may be installed on the second steel pipe pile 30b as shown in FIG. good.
　（上端格点鋼管５０ａの構造）
　図６は、実施の形態１に係る道路構造１００の上端格点鋼管５０ａ周辺の断面構造の説明図である。図７は、実施の形態１に係る道路構造１００の上端格点鋼管５０ａの上面図である。上端格点鋼管５０ａと支持杭１０とは、偏心接合部材６０ａにより接合される。偏心接合部材６０ａは、上端格点鋼管５０ａの一部であり、支持杭１０の杭頭１２と組み合わさり、杭頭１２に対する上端格点鋼管５０ａの位置を調整できるようにするためのものである。即ち、上端格点鋼管５０ａは、偏心接合部材６０ａにより、支持杭１０と中心軸の位置がずれた状態であっても、支持杭１０に接合することができる。上端格点鋼管５０ａと杭頭１２とを接合する偏心接合部材６０ａを、特に第１偏心接合部材と称する場合がある。 (Structure of upper end grade steel pipe 50a)
FIG. 6 is an explanatory view of a cross-sectional structure around the upper end grade point steel pipe 50a of the road structure 100 according to the first embodiment. FIG. 7 is a top view of the upper end grade point steel pipe 50a of the road structure 100 according to the first embodiment. The upper end grade point steel pipe 50a and the support pile 10 are joined by an eccentric joining member 60a. The eccentric joining member 60a is a part of the upper end grade steel pipe 50a and is for being combined with the pile head 12 of the support pile 10 so that the position of the upper end grade steel pipe 50a with respect to the pile head 12 can be adjusted. .. That is, the upper end grade point steel pipe 50a can be joined to the support pile 10 by the eccentric joining member 60a even when the positions of the support pile 10 and the central axis are deviated from each other. The eccentric joining member 60a that joins the upper end grade steel pipe 50a and the pile head 12 may be particularly referred to as a first eccentric joining member.
　実施の形態１において、偏心接合部材６０ａは、少なくとも上端格点鋼管５０ａを構成する筒体である鋼管部材５１ａと支持部材５５ａとから構成される。実施の形態１においては、鋼管部材５１ａは、円筒形状になっている。鋼管部材５１ａの内部の上部には支持部材５５ａが設置されている。支持部材５５ａは、円筒形状である鋼管部材５１ａの中心軸Ｃを通り、板状の部材を十字形状に組み合わせて形成されている。なお、鋼管部材５１ａは、円筒形状に限定されるものではなく、矩形又は多角形等の断面形状の筒体であってもよい。 In the first embodiment, the eccentric joint member 60a is composed of at least a steel pipe member 51a and a support member 55a, which are cylinders constituting the upper end grade steel pipe 50a. In the first embodiment, the steel pipe member 51a has a cylindrical shape. A support member 55a is installed above the inside of the steel pipe member 51a. The support member 55a passes through the central axis C of the cylindrical steel pipe member 51a and is formed by combining plate-shaped members in a cross shape. The steel pipe member 51a is not limited to a cylindrical shape, and may be a cylindrical body having a cross-sectional shape such as a rectangle or a polygon.
　上端格点鋼管５０ａは、桁部材４１が接続される縦桁仕口５２ａ及び横桁仕口５３ａを備える。縦桁仕口５２ａ及び横桁仕口５３ａと桁部材４１とは、添接板４４により縦桁仕口５２ａ又は横桁仕口５３ａの端部と桁部材４１の端部とを挟みこみ、ボルト及びナットを用いて添接板４４とそれぞれの部材の端部とを固定して接続される。 The upper end grade steel pipe 50a includes a vertical girder joint 52a and a horizontal girder joint 53a to which the girder member 41 is connected. The vertical girder joint 52a, the horizontal girder joint 53a, and the girder member 41 sandwich the end of the vertical girder joint 52a or the horizontal girder joint 53a and the end of the girder member 41 with the splicing plate 44, and bolt. And nuts are used to fix and connect the splicing plate 44 and the ends of the respective members.
　上端格点鋼管５０ａは、上部に板状の部材が取り付けられており、上面５７ａが平坦になっている。上面５７ａは、道路の傾斜に合わせて傾斜していてもよい。上面５７ａには、板状の部材を貫通する充填孔５６ａが開口されている。充填孔５６ａは、杭頭１２と鋼管部材５１ａとの間の空間に充填材８０を注入するための孔であり、外部と鋼管部材５１ａの内部の空間とを連通する。 The upper end grade steel pipe 50a has a plate-shaped member attached to the upper part, and the upper surface 57a is flat. The upper surface 57a may be inclined according to the inclination of the road. A filling hole 56a that penetrates the plate-shaped member is opened in the upper surface 57a. The filling hole 56a is a hole for injecting the filler 80 into the space between the pile head 12 and the steel pipe member 51a, and communicates the outside with the space inside the steel pipe member 51a.
　支持部材５５ａは、下面に支持杭１０ａ又は１０ｂの杭頭１２の端面１４が当接する。支持部材５５ａの下面と杭頭１２の端面１４とが当接することにより、上端格点鋼管５０ａは、支持杭１０の中心軸方向の位置、即ち高さ方向の位置が決まる。鋼管部材５１ａは、支持杭１０の上端部の外周面を包囲している。充填材８０が充填される前においては、鋼管部材５１ａの内側面と支持杭１０の外側面と間には隙間が形成されており、上端格点鋼管５０ａは、その隙間の分だけ支持杭１０に対し、水平方向に移動させることができる。図６及び図７に示されるように、支持部材５５ａは、板状の部材を十字に組み合わせて形成されているが、その他の形態をとることもできる。支持部材５５ａは、上端格点鋼管５０ａを杭頭１２の端面１４上に保持できることができ、充填材８０の注入の際に障害にならなければその他の構造であってもよい。 The end surface 14 of the pile head 12 of the support pile 10a or 10b abuts on the lower surface of the support member 55a. When the lower surface of the support member 55a and the end surface 14 of the pile head 12 come into contact with each other, the position of the upper end grade steel pipe 50a in the central axis direction of the support pile 10, that is, the position in the height direction is determined. The steel pipe member 51a surrounds the outer peripheral surface of the upper end portion of the support pile 10. Before the filler 80 is filled, a gap is formed between the inner surface of the steel pipe member 51a and the outer surface of the support pile 10, and the upper end grade steel pipe 50a has the support pile 10 by the amount of the gap. On the other hand, it can be moved in the horizontal direction. As shown in FIGS. 6 and 7, the support member 55a is formed by combining plate-shaped members in a cross shape, but may take other forms. The support member 55a can hold the upper end grade steel pipe 50a on the end surface 14 of the pile head 12, and may have another structure as long as it does not interfere with the injection of the filler 80.
　支持杭１０は、杭頭１２の位置が想定した位置からずれる場合がある。地盤９０の表面９４からの突出量が多大である場合には、鋼管杭２０及び鋼管支柱３０の単品の精度及び接合精度により、杭頭１２の位置誤差が大きくなる場合がある。例えば、上端格点鋼管５０ａの鋼管部材５１ａが円筒形状であり、杭頭１２が円柱形状である場合、鋼管部材５１ａの内径を杭頭１２の外径より３００ｍｍ大きく設定する。これにより、上端格点鋼管５０ａは、杭頭１２に１００ｍｍの水平方向の位置の誤差があっても正しい位置に設置でき、充填材８０の充填性も確保することができる。 The position of the pile head 12 of the support pile 10 may deviate from the assumed position. When the amount of protrusion of the ground 90 from the surface 94 is large, the position error of the pile head 12 may increase due to the accuracy and joining accuracy of the steel pipe pile 20 and the steel pipe column 30 individually. For example, when the steel pipe member 51a of the upper end grade steel pipe 50a has a cylindrical shape and the pile head 12 has a cylindrical shape, the inner diameter of the steel pipe member 51a is set to be 300 mm larger than the outer diameter of the pile head 12. As a result, the upper end grade steel pipe 50a can be installed at the correct position even if the pile head 12 has a horizontal position error of 100 mm, and the filling property of the filler 80 can be ensured.
　充填材８０は、上端格点鋼管５０ａの上面５７ａに開口している充填孔５６ａから鋼管部材５１ａと杭頭１２との隙間に充填される。鋼管部材５１ａは、下方が開口されている。そのため、充填材８０の充填工程において、下方から充填材８０が漏れ出ないように、型枠治具７０（図１７参照）を鋼管部材５１ａの下端面に当接させて開口を塞ぐ。型枠治具７０については、別途説明する。充填材８０が充填される鋼管部材５１ａと杭頭１２との隙間を形成する鋼管部材５１ａの内側面及び杭頭１２の外側面は、突起５４及び１３が設けられている。突起５４及び１３が固化した充填材８０と噛み合うため、充填材８０は、鋼管部材５１ａの内側面及び杭頭１２の外側面に沿った方向にずれることがなく、上端格点鋼管５０ａと支持杭１０との間の荷重伝達を向上させることができる。 The filler 80 is filled in the gap between the steel pipe member 51a and the pile head 12 through the filling hole 56a opened in the upper surface 57a of the upper end grade steel pipe 50a. The steel pipe member 51a is open at the bottom. Therefore, in the filling step of the filler 80, the formwork jig 70 (see FIG. 17) is brought into contact with the lower end surface of the steel pipe member 51a to close the opening so that the filler 80 does not leak from below. The formwork jig 70 will be described separately. Projections 54 and 13 are provided on the inner surface of the steel pipe member 51a forming a gap between the steel pipe member 51a filled with the filler 80 and the pile head 12 and the outer surface of the pile head 12. Since the protrusions 54 and 13 mesh with the solidified filler 80, the filler 80 does not shift in the direction along the inner surface of the steel pipe member 51a and the outer surface of the pile head 12, and the upper end grade steel pipe 50a and the support pile. The load transmission to and from 10 can be improved.
　突起１３及び５４は、鉄筋や棒鋼を曲げて溶接にて固定することにより形成してもよい。又は、鋼管部材５１ａ及び支持杭１０は、突起付き鋼板材により形成されていてもよい。例えば、鋼管部材５１ａ及び支持杭１０は、鋼板表面に縦横に突起を有する縞鋼板、高さ２ｍｍ程度の突起が並行して並ぶリブ付き鋼板により形成されたリブ付き鋼管を用いてもよい。縞鋼板又はリブ付き鋼管を使用することによって、鋼管部材５１ａに突起５４を、及び支持杭１０に突起１３を溶接接合するための工費や工程を削減することができる。また、あらかじめ一体に形成されている突起１３及び５４がずれ止め突起の固定強度を向上させるため、上端格点鋼管５０ａの鋼管部材５１ａは、高さ方向の寸法を縮小することが可能である。 The protrusions 13 and 54 may be formed by bending a reinforcing bar or a steel bar and fixing them by welding. Alternatively, the steel pipe member 51a and the support pile 10 may be formed of a steel plate material with protrusions. For example, as the steel pipe member 51a and the support pile 10, a ribbed steel pipe formed of a striped steel plate having protrusions in the vertical and horizontal directions on the surface of the steel plate and a ribbed steel plate having protrusions having a height of about 2 mm arranged in parallel may be used. By using the striped steel plate or the ribbed steel pipe, it is possible to reduce the construction cost and the process for welding and joining the protrusion 54 to the steel pipe member 51a and the protrusion 13 to the support pile 10. Further, since the protrusions 13 and 54 integrally formed in advance improve the fixing strength of the slip prevention protrusion, the steel pipe member 51a of the upper end grade steel pipe 50a can reduce the dimension in the height direction.
　（中間格点鋼管５０ｂの構造）
　図８は、実施の形態１に係る道路構造１００の中間格点鋼管５０ｂ周辺の断面構造の説明図である。図９は、実施の形態１に係る道路構造１００の中間格点鋼管５０ｂの上面図である。中間格点鋼管５０ｂと支持杭１０とは、偏心接合部材６０ｂにより接合される。偏心接合部材６０ｂは、中間格点鋼管５０ｂの一部であり、支持杭１０と組み合わさり、支持杭１０に対する中間格点鋼管５０ｂの位置を調整できるようにするためのものである。即ち、中間格点鋼管５０ｂは、偏心接合部材６０ｂにより、支持杭１０と中心軸の位置がずれた状態であっても、支持杭１０に接合することができる。 (Structure of intermediate grade steel pipe 50b)
FIG. 8 is an explanatory view of a cross-sectional structure around an intermediate grade steel pipe 50b of the road structure 100 according to the first embodiment. FIG. 9 is a top view of the intermediate grade steel pipe 50b of the road structure 100 according to the first embodiment. The intermediate grade steel pipe 50b and the support pile 10 are joined by an eccentric joining member 60b. The eccentric joint member 60b is a part of the intermediate grade steel pipe 50b, and is for being combined with the support pile 10 so that the position of the intermediate grade steel pipe 50b with respect to the support pile 10 can be adjusted. That is, the intermediate grade steel pipe 50b can be joined to the support pile 10 by the eccentric joining member 60b even when the positions of the support pile 10 and the central axis are deviated from each other.
　実施の形態１において、偏心接合部材６０ｂは、少なくとも中間格点鋼管５０ｂを構成する鋼管部材５１ｂから構成される。鋼管部材５１ｂは、筒体であり、実施の形態１においては円筒形状になっている。ただし、鋼管部材５１ｂは、円筒形状に限定されるものではなく、矩形又は多角形等の断面形状の筒体であってもよい。支持杭１０を包囲する筒体である鋼管部材５１ｂは、中心軸が支持杭１０の中心軸とずれた状態で接合可能であり、特に第２偏心接合部材と称する。 In the first embodiment, the eccentric joint member 60b is composed of at least a steel pipe member 51b constituting an intermediate grade steel pipe 50b. The steel pipe member 51b is a tubular body and has a cylindrical shape in the first embodiment. However, the steel pipe member 51b is not limited to a cylindrical shape, and may be a cylindrical body having a cross-sectional shape such as a rectangle or a polygon. The steel pipe member 51b, which is a tubular body surrounding the support pile 10, can be joined in a state where the central axis is deviated from the central axis of the support pile 10, and is particularly referred to as a second eccentric joining member.
　中間格点鋼管５０ｂは、梁部材４０が接続される縦梁仕口５２ｂ及び横梁仕口５３ｂを備える。縦梁仕口５２ｂ及び横梁仕口５３ｂと梁部材４０とは、桁部材４１と同様に添接板４４により縦梁仕口５２ｂ又は横梁仕口５３ｂの端部と梁部材４０の端部とを挟みこみ、ボルト及びナットを用いて添接板４４とそれぞれの部材の端部とを固定して接続される。 The intermediate grade steel pipe 50b includes a vertical beam joint 52b and a horizontal beam joint 53b to which the beam member 40 is connected. The vertical beam joint 52b, the horizontal beam joint 53b, and the beam member 40 are formed by using a splicing plate 44 to connect the end of the vertical beam joint 52b or the horizontal beam joint 53b and the end of the beam member 40 in the same manner as the girder member 41. The splicing plate 44 and the end portions of the respective members are fixed and connected by sandwiching, bolts and nuts.
　中間格点鋼管５０ｂの鋼管部材５１ｂは、筒体であるため上下方向の端部は開口されている。従って、鋼管部材５１ｂと支持杭１０との隙間の上端が、充填口５６ｂとなり鋼管部材５１ｂと支持杭１０との間の空間に充填材８０を注入するための開口となり、外部と鋼管部材５１ａの内部の空間とを連通している。 Since the steel pipe member 51b of the intermediate grade steel pipe 50b is a tubular body, its ends in the vertical direction are open. Therefore, the upper end of the gap between the steel pipe member 51b and the support pile 10 serves as a filling port 56b and serves as an opening for injecting the filler 80 into the space between the steel pipe member 51b and the support pile 10, and the outside and the steel pipe member 51a It communicates with the internal space.
　充填材８０が充填される前においては、鋼管部材５１ｂの内側面と支持杭１０の外側面と間には隙間が形成されており、中間格点鋼管５０ｂは、その隙間の分だけ支持杭１０に対し、水平方向に移動させることができる。図８に示される構造の場合、中間格点鋼管５０ｂを上下方向に支持する構造が無いため、中間格点鋼管５０ｂを支持杭１０に取り付ける際に中間格点鋼管５０ｂの下端面に型枠治具７０（図１７参照）を当接させて下側から中間格点鋼管５０ｂを支持する。型枠治具７０は、充填材８０を充填する際に下側の開口から充填材８０が漏れ出ないようにする機能も有する。 Before the filler 80 is filled, a gap is formed between the inner surface of the steel pipe member 51b and the outer surface of the support pile 10, and the intermediate grade steel pipe 50b has the support pile 10 by the amount of the gap. On the other hand, it can be moved in the horizontal direction. In the case of the structure shown in FIG. 8, since there is no structure for supporting the intermediate grade steel pipe 50b in the vertical direction, the formwork is applied to the lower end surface of the intermediate grade steel pipe 50b when the intermediate grade steel pipe 50b is attached to the support pile 10. The tool 70 (see FIG. 17) is brought into contact with the intermediate grade steel pipe 50b from below. The formwork jig 70 also has a function of preventing the filler 80 from leaking from the lower opening when the filler 80 is filled.
　支持杭１０は、位置が想定した位置からずれる場合がある。地盤９０の表面９４からの突出量が多大である場合には、鋼管杭２０及び鋼管支柱３０の単品の精度及び接合精度により、支持杭１０の位置誤差が大きくなる場合がある。例えば、中間格点鋼管５０ｂの鋼管部材５１ｂが円筒形状であり、支持杭１０が円柱形状である場合、鋼管部材５１ｂの内径を支持杭１０の外径より３００ｍｍ大きく設定する。これにより、中間格点鋼管５０ｂは、支持杭１０が１００ｍｍの水平方向の位置の誤差を持っていても正しい位置に設置でき、充填材８０の充填性も確保することができる。 The position of the support pile 10 may deviate from the expected position. When the amount of protrusion of the ground 90 from the surface 94 is large, the positional error of the support pile 10 may increase due to the accuracy and joining accuracy of the steel pipe pile 20 and the steel pipe column 30 individually. For example, when the steel pipe member 51b of the intermediate grade steel pipe 50b has a cylindrical shape and the support pile 10 has a cylindrical shape, the inner diameter of the steel pipe member 51b is set to be 300 mm larger than the outer diameter of the support pile 10. As a result, the intermediate grade steel pipe 50b can be installed at the correct position even if the support pile 10 has a horizontal position error of 100 mm, and the filling property of the filler 80 can be ensured.
　充填材８０が充填される鋼管部材５１ｂと支持杭１０との隙間を形成する鋼管部材５１ｂの内側面及び支持杭１０の外側面は、突起５４及び１３が設けられている。突起５４及び１３が固化した充填材８０と噛み合うため、充填材８０は、鋼管部材５１ｂの内側面及び支持杭１０の外側面に沿った方向にずれることがなく、中間格点鋼管５０ｂと支持杭１０との間の荷重伝達を向上させることができる。 Projections 54 and 13 are provided on the inner surface of the steel pipe member 51b and the outer surface of the support pile 10 that form a gap between the steel pipe member 51b filled with the filler 80 and the support pile 10. Since the protrusions 54 and 13 mesh with the solidified filler 80, the filler 80 does not shift in the direction along the inner surface of the steel pipe member 51b and the outer surface of the support pile 10, and the intermediate grade steel pipe 50b and the support pile do not shift. The load transmission to and from 10 can be improved.
　突起１３及び５４は、鉄筋や棒鋼を曲げて溶接にて固定することにより形成してもよい。又は、鋼管部材５１ｂ及び支持杭１０は、突起付き鋼板材により形成されていてもよい。例えば、鋼管部材５１ｂ及び支持杭１０は、鋼板表面に縦横に突起を有する縞鋼板、高さ２ｍｍ程度の突起が並行して並ぶリブ付き鋼板により形成されたリブ付き鋼管を用いてもよい。縞鋼板又はリブ付き鋼管を使用することによって、鋼管部材５１ｂに突起５４を、及び支持杭１０に突起１３を溶接接合するための工費や工程を削減することができる。また、あらかじめ一体に形成されている突起１３及び５４がずれ止め突起の固定強度を向上させるため、中間格点鋼管５０ｂの鋼管部材５１ｂは、高さ方向の寸法を縮小することが可能である。 The protrusions 13 and 54 may be formed by bending a reinforcing bar or a steel bar and fixing them by welding. Alternatively, the steel pipe member 51b and the support pile 10 may be formed of a steel plate material with protrusions. For example, as the steel pipe member 51b and the support pile 10, a ribbed steel pipe formed of a striped steel plate having protrusions in the vertical and horizontal directions on the surface of the steel plate and a ribbed steel plate having protrusions having a height of about 2 mm arranged in parallel may be used. By using the striped steel plate or the ribbed steel pipe, it is possible to reduce the construction cost and the process for welding and joining the protrusion 54 to the steel pipe member 51b and the protrusion 13 to the support pile 10. Further, since the protrusions 13 and 54 integrally formed in advance improve the fixing strength of the slip prevention protrusion, the steel pipe member 51b of the intermediate grade steel pipe 50b can reduce the dimension in the height direction.
　（中間格点鋼管５０ｂの構造の変形例）
　図１０は、実施の形態１に係る道路構造１００の中間格点鋼管５０ｂの変形例である中間格点鋼管１５０ｂ周辺の断面構造の説明図である。中間格点鋼管５０ｂは、鋼管部材５１ｂの内部に支持部材５５ｂを設置することにより、例えば第１鋼管杭２０ａと鋼管支柱３０とを接合することができる。変形例の中間格点鋼管１５０ｂは、鋼管部材５１ｂの内部に上端格点鋼管５０ａが備える支持部材５５ａと同様の構造の支持部材５５ｂを備える。 (Modification example of the structure of intermediate grade steel pipe 50b)
FIG. 10 is an explanatory view of a cross-sectional structure around an intermediate grade steel pipe 150b, which is a modification of the intermediate grade steel pipe 50b of the road structure 100 according to the first embodiment. In the intermediate grade steel pipe 50b, for example, the first steel pipe pile 20a and the steel pipe column 30 can be joined by installing the support member 55b inside the steel pipe member 51b. The intermediate grade steel pipe 150b of the modified example includes a support member 55b having the same structure as the support member 55a provided in the upper end grade steel pipe 50a inside the steel pipe member 51b.
　支持部材５５ｂは、下面に第１鋼管杭２０ａの杭頭２１ａの端面２２ａが当接する。支持部材５５ａの下面と杭頭２１ａの端面２２ａとが当接することにより、中間格点鋼管１５０ｂは、支持杭１０の中心軸方向の位置、即ち高さ方向の位置が決まる。充填材８０が充填される前においては、鋼管部材５１ｂの内側面と第２鋼管杭２０ｂの外側面との間には隙間が形成されており、中間格点鋼管１５０ｂは、その隙間の分だけ第２鋼管杭２０ｂに対し、水平方向に移動させることができる。図６及び図７に示されるように、支持部材５５ａは、板状の部材を十字に組み合わせて形成されているが、その他の形態をとることもできる。支持部材５５ａは、中間格点鋼管１５０ｂを杭頭１２の端面１４上に保持できることができ、充填材８０の注入の際に障害にならなければその他の構造であってもよい。 The end surface 22a of the pile head 21a of the first steel pipe pile 20a abuts on the lower surface of the support member 55b. When the lower surface of the support member 55a and the end surface 22a of the pile head 21a come into contact with each other, the position of the intermediate grade steel pipe 150b in the central axis direction, that is, the position in the height direction is determined. Before the filler 80 is filled, a gap is formed between the inner surface of the steel pipe member 51b and the outer surface of the second steel pipe pile 20b, and the intermediate grade steel pipe 150b is formed by the amount of the gap. It can be moved in the horizontal direction with respect to the second steel pipe pile 20b. As shown in FIGS. 6 and 7, the support member 55a is formed by combining plate-shaped members in a cross shape, but may take other forms. The support member 55a can hold the intermediate grade steel pipe 150b on the end surface 14 of the pile head 12, and may have another structure as long as it does not interfere with the injection of the filler 80.
　支持部材５５ｂは、上面に鋼管支柱３０の端面３１が載置される。支持部材５５ａの上面と鋼管支柱３０の端面３１とが当接することにより、鋼管支柱３０は、支持杭１０の中心軸方向の位置、即ち高さ方向の位置が決まる。充填材８０が充填される前においては、鋼管部材５１ｂの内側面と鋼管支柱３０の外側面と間には隙間が形成されており、鋼管支柱３０は、その隙間の分だけ鋼管部材５１ｂに対し、水平方向に移動させることができる。以上より、中間格点鋼管１５０ｂは、下方部材である第１鋼管杭２０ａと上方部材である鋼管支柱３０とを中心軸を偏心させた状態で接合させることができる。中間格点鋼管１５０ｂは、筒体である鋼管部材５１ｂと支持部材５５ａとを備え、上方部材及び下方部材とを接合する。鋼管部材５１ｂ及び支持部材５５ａを特に第２偏心接合部材と称する。 The end surface 31 of the steel pipe column 30 is placed on the upper surface of the support member 55b. When the upper surface of the support member 55a and the end surface 31 of the steel pipe column 30 come into contact with each other, the position of the steel pipe column 30 in the central axis direction, that is, the position in the height direction is determined. Before the filler 80 is filled, a gap is formed between the inner surface of the steel pipe member 51b and the outer surface of the steel pipe support column 30, and the steel pipe support column 30 has a gap with respect to the steel pipe member 51b by the amount of the gap. , Can be moved horizontally. From the above, in the intermediate grade steel pipe 150b, the first steel pipe pile 20a which is a lower member and the steel pipe column 30 which is an upper member can be joined in a state where the central axis is eccentric. The intermediate grade steel pipe 150b includes a steel pipe member 51b which is a tubular body and a support member 55a, and joins the upper member and the lower member. The steel pipe member 51b and the support member 55a are particularly referred to as a second eccentric joining member.
　図１１は、実施の形態１に係る道路構造１００の中間格点鋼管５０ｂの変形例である中間格点鋼管１５０ｂの一例の断面構造の説明図である。中間格点鋼管１５０ｂは、図１１に示される様に、鋼管部材５１ｂの外側から内部に向かってねじ込まれるボルト５７を備えていても良い。ボルト５７は、支持杭１０を構成する下方部材及び上方部材の鋼管部材５１ｂに対する位置を調整し、仮固定するものである。中間格点鋼管５０ｂの内部に充填材８０が充填され固化した後は、ボルト５７の頭は除去しても良い。 FIG. 11 is an explanatory view of a cross-sectional structure of an example of an intermediate grade steel pipe 150b, which is a modification of the intermediate grade steel pipe 50b of the road structure 100 according to the first embodiment. As shown in FIG. 11, the intermediate grade steel pipe 150b may include a bolt 57 screwed from the outside to the inside of the steel pipe member 51b. The bolt 57 adjusts the positions of the lower member and the upper member constituting the support pile 10 with respect to the steel pipe member 51b, and temporarily fixes the bolt 57. After the filler 80 is filled and solidified inside the intermediate grade steel pipe 50b, the head of the bolt 57 may be removed.
　（実施の形態１に係る道路構造１００の効果）
　実施の形態１に係る道路構造１００によれば、道路が延びる第１方向及び第１方向に交差する第２方向に並列して地盤９０に打設される第１鋼管杭２０ａ及び第２鋼管杭２０ｂと、第１鋼管杭２０ａの上方に接続される鋼管支柱３０と、第２鋼管杭２０ｂ又は鋼管支柱３０の上端に設置される上端格点鋼管５０ａと、隣り合う２つの上端格点鋼管５０ａのうち連結する桁部材４１と、上端格点鋼管５０ａ及び桁部材４１の上に設置される道路床版９９と、を備える。第１鋼管杭２０ａ、第２鋼管杭２０ｂ、鋼管支柱３０、及び上端格点鋼管５０ａのうち、下方に位置する部材を下方部材とし、下方部材の上方に接合される部材を上方部材としたときに、下方部材と上方部材との接合部は、下方部材の中心軸と上方部材の中心軸とを偏心させた状態で接合できる偏心接合部材６０により接合される。
　このように構成されることにより、道路構造１００は、地盤９０からの突出長さが多大な支持杭１０においても、杭頭１２の位置が調整でき、また、杭頭１２に接合される上端格点鋼管５０ａの位置及び桁部材４１の位置の調整ができる。つまり、道路構造１００を構成する鋼管杭２０、鋼管支柱３０、及び上端格点鋼管５０ａのうち、下方に位置する下方部材と下方部材の上方に接合される上方部材との中心軸を誤差の分だけずらして位置調整ができる。そのため、支持杭１０を地盤９０に立設するにあたり、上端格点鋼管５０ａの位置の精度を容易に確保でき、道路構造１００は、精度を確保しつつ工期及びコストを抑制できる。 (Effect of Road Structure 100 According to Embodiment 1)
According to the road structure 100 according to the first embodiment, the first steel pipe pile 20a and the second steel pipe pile 20a and the second steel pipe pile are driven into the ground 90 in parallel with the first direction in which the road extends and the second direction intersecting the first direction. 20b, a steel pipe column 30 connected above the first steel pipe pile 20a, an upper end grade steel pipe 50a installed at the upper end of the second steel pipe pile 20b or the steel pipe column 30, and two adjacent upper end grade steel pipes 50a. Of these, a girder member 41 to be connected, an upper end grade steel pipe 50a, and a road slab 99 installed on the girder member 41 are provided. When the member located below is the lower member and the member joined above the lower member is the upper member among the first steel pipe pile 20a, the second steel pipe pile 20b, the steel pipe column 30, and the upper end grade steel pipe 50a. In addition, the joint portion between the lower member and the upper member is joined by an eccentric joining member 60 that can be joined in a state where the central axis of the lower member and the central axis of the upper member are eccentric.
With this configuration, the road structure 100 can adjust the position of the pile head 12 even in the support pile 10 having a large protrusion length from the ground 90, and the upper end rating joined to the pile head 12. The position of the point steel pipe 50a and the position of the girder member 41 can be adjusted. That is, among the steel pipe pile 20, the steel pipe column 30, and the upper end grade steel pipe 50a constituting the road structure 100, the central axis of the lower member located below and the upper member joined above the lower member is the amount of error. The position can be adjusted by shifting it. Therefore, when the support pile 10 is erected on the ground 90, the accuracy of the position of the upper end grade steel pipe 50a can be easily ensured, and the road structure 100 can suppress the construction period and the cost while ensuring the accuracy.
　また、道路構造１００によれば、偏心接合部材６０は、少なくとも第１偏心接合部材６０ａを含み、上端格点鋼管５０ａのうち少なくとも１つは、筒体を含む第１偏心接合部材６０ａを備える。筒体は、鋼管杭２０の外形及び鋼管支柱３０の外形よりも大きく、鋼管杭２０又は鋼管支柱３０の外側面を包囲して設置される。そして、筒体と鋼管杭２０又は鋼管支柱３０との間に形成される隙間は、充填材８０が充填される。
　このように構成されることにより、上端格点鋼管５０ａは、支持杭１０の杭頭１２の位置に誤差があっても、位置調整を容易に行うことができる。 Further, according to the road structure 100, the eccentric joining member 60 includes at least a first eccentric joining member 60a, and at least one of the upper end grade steel pipes 50a includes a first eccentric joining member 60a including a tubular body. The tubular body is larger than the outer shape of the steel pipe pile 20 and the outer shape of the steel pipe column 30, and is installed so as to surround the outer surface of the steel pipe pile 20 or the steel pipe column 30. Then, the gap formed between the tubular body and the steel pipe pile 20 or the steel pipe column 30 is filled with the filler 80.
With this configuration, the position of the upper end grade steel pipe 50a can be easily adjusted even if there is an error in the position of the pile head 12 of the support pile 10.
　また、道路構造１００によれば、第１鋼管杭２０ａ、第２鋼管杭２０ｂ、又は鋼管支柱３０に設置される中間格点鋼管５０ｂと、隣り合う２つの中間格点鋼管５０ｂを連結する梁部材４０と、をさらに備える。偏心接合部材６０は、少なくとも第２偏心接合部材６０ｂを含み、第１鋼管杭２０ａ、第２鋼管杭２０ｂ、鋼管支柱３０、上端格点鋼管５０ａ、及び中間格点鋼管５０ｂのうち、下方に位置する部材を下方部材とし、下方部材の上方に接合される部材を上方部材としたときに、下方部材と上方部材との接合部は、第２偏心接合部材６０ｂにより接合される。中間格点鋼管５０ｂは、筒体を含む第２偏心接合部材６０ｂを備える。筒体は、鋼管杭２０の外形及び鋼管支柱３０の外形よりも大きく、鋼管杭２０又は鋼管支柱３０の外側面を包囲して設置される。中間格点鋼管５０ｂと鋼管杭２０又は鋼管支柱３０との間に形成される隙間は、充填材８０が充填される。
　このように構成されることにより、中間格点鋼管５０ｂは、支持杭１０の位置に誤差があっても、支持杭１０に対し中心軸をずらして設置することができる。そのため、異なる支持杭１０に設置された２つの中間格点鋼管５０ｂ同士を不都合なく梁部材４０で連結することができる。また、道路構造１００は、支持杭１０の位置に誤差があっても中間格点鋼管５０ｂの設置位置を鋼管部材５１ｂと支持杭１０との隙間で調整できるため、中間格点鋼管５０ｂの設置が容易である。 Further, according to the road structure 100, a beam member connecting two intermediate grade steel pipes 50b adjacent to each other with the intermediate grade steel pipe 50b installed on the first steel pipe pile 20a, the second steel pipe pile 20b, or the steel pipe column 30. 40 and more are provided. The eccentric joining member 60 includes at least the second eccentric joining member 60b, and is located below the first steel pipe pile 20a, the second steel pipe pile 20b, the steel pipe column 30, the upper end grade steel pipe 50a, and the intermediate grade steel pipe 50b. When the member to be joined is a lower member and the member joined above the lower member is an upper member, the joint portion between the lower member and the upper member is joined by the second eccentric joining member 60b. The intermediate grade steel pipe 50b includes a second eccentric joint member 60b including a tubular body. The tubular body is larger than the outer shape of the steel pipe pile 20 and the outer shape of the steel pipe column 30, and is installed so as to surround the outer surface of the steel pipe pile 20 or the steel pipe column 30. The gap formed between the intermediate grade steel pipe 50b and the steel pipe pile 20 or the steel pipe column 30 is filled with the filler 80.
With this configuration, the intermediate grade steel pipe 50b can be installed with the central axis shifted from the support pile 10 even if there is an error in the position of the support pile 10. Therefore, the two intermediate grade steel pipes 50b installed on the different support piles 10 can be connected to each other by the beam member 40 without any inconvenience. Further, in the road structure 100, even if there is an error in the position of the support pile 10, the installation position of the intermediate grade steel pipe 50b can be adjusted by the gap between the steel pipe member 51b and the support pile 10, so that the intermediate grade steel pipe 50b can be installed. It's easy.
　図１２は、実施の形態１に係る道路構造１００及び比較例の道路構造１０００の模式図である。実施の形態１に係る道路構造１００は、中間格点鋼管５０ｂを備え、隣り合う中間格点鋼管５０ｂ同士を梁部材４０で接続している。そのため、図１２（ａ）に示される様に、地震力による入力Ｆに対する支持杭１０ａに発生する曲げモーメントは、中間格点鋼管５０ｂにより抑えられ、変位Δｘも抑えられる。一方、比較例の道路構造１０００は、中間格点鋼管５０ｂも梁部材４０も設置されていない。そのため、図１２（ｂ）に示される様に、地震力による入力Ｆに対する支持杭１０ａに発生する曲げモーメントは、実施の形態１に係る道路構造１００よりも大きくなり、変位Δｘ１も大きくなる。 FIG. 12 is a schematic view of the road structure 100 according to the first embodiment and the road structure 1000 of the comparative example. The road structure 100 according to the first embodiment includes intermediate grade steel pipes 50b, and adjacent intermediate grade steel pipes 50b are connected to each other by a beam member 40. Therefore, as shown in FIG. 12A, the bending moment generated in the support pile 10a with respect to the input F due to the seismic force is suppressed by the intermediate grade steel pipe 50b, and the displacement Δx is also suppressed. On the other hand, in the road structure 1000 of the comparative example, neither the intermediate grade steel pipe 50b nor the beam member 40 is installed. Therefore, as shown in FIG. 12B, the bending moment generated in the support pile 10a with respect to the input F due to the seismic force is larger than that of the road structure 100 according to the first embodiment, and the displacement Δx1 is also large.
　以上のように、実施の形態１に係る道路構造１００によれば、設置が容易で工期及びコストを抑えるだけでなく、地震力などによる入力Ｆに対して発生する曲げモーメント及び変位Δｘを抑えることができる。そのため、道路構造１００は、信頼性を向上させることができる。特に、実施の形態１に係る道路構造１００は、地盤９０から突出した支持杭１０の上部に桁部材４１及び道路床版９９等の上部工を直接設けている。そのため、計画道路面に対して斜面の深さが深く、支持杭１０の地盤９０からの突出長が多大になる場合には、上部工に作用する地震力に対して、比較例の道路構造１０００のように支持杭１０の変形量及び応力が多大となる。従って、比較例の道路構造１０００は、支持杭１０の突出高さが１０ｍ程度より大きくなってしまうような地形に対して適用できないという課題があった。しかし、実施の形態１に係る道路構造１００によれば、上記のように、支持杭１０の地盤９０からの突出長が多大であっても曲げモーメント及び変位Δｘを抑えることができる。そのため、道路構造１００は、地形に拘わらず設置ができるという利点がある。 As described above, according to the road structure 100 according to the first embodiment, not only the installation is easy and the construction period and cost are suppressed, but also the bending moment and the displacement Δx generated with respect to the input F due to the seismic force or the like are suppressed. Can be done. Therefore, the road structure 100 can improve the reliability. In particular, in the road structure 100 according to the first embodiment, superstructures such as a girder member 41 and a road slab 99 are directly provided on the upper part of the support pile 10 protruding from the ground 90. Therefore, when the depth of the slope is deep with respect to the planned road surface and the projecting length of the support pile 10 from the ground 90 becomes large, the road structure 1000 of the comparative example is opposed to the seismic force acting on the superstructure. As shown above, the amount of deformation and stress of the support pile 10 become large. Therefore, the road structure 1000 of the comparative example has a problem that it cannot be applied to a terrain in which the protruding height of the support pile 10 is larger than about 10 m. However, according to the road structure 100 according to the first embodiment, as described above, the bending moment and the displacement Δx can be suppressed even if the protrusion length of the support pile 10 from the ground 90 is large. Therefore, the road structure 100 has an advantage that it can be installed regardless of the terrain.
　実施の形態２．
　実施の形態２に係る道路構造２００は、実施の形態１に係る道路構造１００に対し、少なくとも一部の偏心接合部材６０の構造を変更したものである。実施の形態２に係る道路構造２００においては、実施の形態１に対する変更点を中心に説明する。実施の形態２に係る道路構造２００の各部については、各図面において同一の機能を有するものは実施の形態１の説明で使用した図面と同一の符号を付して表示するものとする。 Embodiment 2.
The road structure 200 according to the second embodiment is a modification of the structure of at least a part of the eccentric joint members 60 with respect to the road structure 100 according to the first embodiment. In the road structure 200 according to the second embodiment, the changes to the first embodiment will be mainly described. Regarding each part of the road structure 200 according to the second embodiment, those having the same function in each drawing shall be indicated with the same reference numerals as those used in the description of the first embodiment.
　図１３は、実施の形態２に係る道路構造２００の上端格点鋼管２５０ａ周辺の断面構造の説明図である。図１４は、実施の形態２に係る道路構造２００の上端格点鋼管２５０ａの上面図である。実施の形態２に係る道路構造２００の上端格点鋼管２５０ａは、鋼管部材２５１ａと縦桁４１ａを接続する縦桁仕口５２ａと横桁４１ｂを接続する横桁仕口５３ａとを備え、上面５７ａが平坦になっている。 FIG. 13 is an explanatory view of a cross-sectional structure around the upper end grade steel pipe 250a of the road structure 200 according to the second embodiment. FIG. 14 is a top view of the upper end grade point steel pipe 250a of the road structure 200 according to the second embodiment. The upper end grade steel pipe 250a of the road structure 200 according to the second embodiment includes a vertical girder joint 52a for connecting the steel pipe member 251a and the vertical girder 41a and a horizontal girder joint 53a for connecting the horizontal girder 41b, and has an upper surface 57a. Is flat.
　支持杭１０の杭頭１２の端面１４には偏心接合部材２６０が接合されている。偏心接合部材２６０は、下端面が支持杭１０の杭頭１２に接合され、上端面が板部材２６１により形成されている。板部材２６１は、上面２６２が平坦になっており、上端格点鋼管２５０ａの鋼管部材２５１ａの下端面２５４ａを載置できる様に構成されている。板部材２６１は、上面２６２が鋼管部材２５１ａの下端面２５４ａよりも大きく形成されている。従って、上端格点鋼管２５０ａの鋼管部材２５１ａは、偏心接合部材２６０の上面２６２上において水平方向にずらして載置することができる。つまり、支持杭１０と上端格点鋼管２５０ａとは、偏心接合部材２６０を用いて互いに中心軸を偏心させた状態で接合することができる。なお、実施の形態２における偏心接合部材２６０を第３偏心接合部材２６０と呼ぶ場合がある。また、上面２６２を接合面と呼ぶ場合がある。 An eccentric joining member 260 is joined to the end face 14 of the pile head 12 of the support pile 10. The lower end surface of the eccentric joining member 260 is joined to the pile head 12 of the support pile 10, and the upper end surface is formed by the plate member 261. The upper surface 262 of the plate member 261 is flat so that the lower end surface 254a of the steel pipe member 251a of the upper end grade steel pipe 250a can be placed. The upper surface 262 of the plate member 261 is formed to be larger than the lower end surface 254a of the steel pipe member 251a. Therefore, the steel pipe member 251a of the upper end grade steel pipe 250a can be placed on the upper surface 262 of the eccentric joint member 260 so as to be displaced in the horizontal direction. That is, the support pile 10 and the upper end grade point steel pipe 250a can be joined in a state where the central axes are eccentric to each other by using the eccentric joining member 260. The eccentric joining member 260 in the second embodiment may be referred to as a third eccentric joining member 260. Further, the upper surface 262 may be referred to as a joint surface.
　図１５は、実施の形態２に係る道路構造２００の中間格点鋼管２５０ｂ周辺の構造の側面図である。偏心接合部材２６０は、中間格点鋼管２５０ｂと第１鋼管杭２０ａとの接合に用いても良い。実施の形態２に係る道路構造２００は、中間格点鋼管２５０ｂの鋼管部材２５１ｂが第１鋼管杭２０ａと同じ断面形状になっている。中間格点鋼管２５０ｂは、鋼管部材２５１ｂと縦梁仕口５２ｂと横梁仕口５３ｂとから構成されている。実施の形態２においては、中間格点鋼管２５０ｂは、実施の形態１における鋼管支柱３０と一体化されていても良い。このように構成されることにより、偏心接合部材２６０を用いて接合して形成された支持杭１０ａに梁部材４０を設置することができる。 FIG. 15 is a side view of the structure around the intermediate grade steel pipe 250b of the road structure 200 according to the second embodiment. The eccentric joining member 260 may be used for joining the intermediate grade steel pipe 250b and the first steel pipe pile 20a. In the road structure 200 according to the second embodiment, the steel pipe member 251b of the intermediate grade steel pipe 250b has the same cross-sectional shape as the first steel pipe pile 20a. The intermediate grade steel pipe 250b is composed of a steel pipe member 251b, a vertical beam joint 52b, and a horizontal beam joint 53b. In the second embodiment, the intermediate grade steel pipe 250b may be integrated with the steel pipe column 30 in the first embodiment. With this configuration, the beam member 40 can be installed on the support pile 10a formed by joining using the eccentric joining member 260.
　実施の形態３．
　実施の形態３においては、実施の形態１に係る道路構造１００の施工方法について説明する。 Embodiment 3.
In the third embodiment, the construction method of the road structure 100 according to the first embodiment will be described.
　道路構造１００及び２００は、まず道路が延びる第１方向及び前記第１方向に交差する第２方向に並列して地盤９０に鋼管杭２０が打設される。この工程を鋼管杭打設工程と呼ぶ。鋼管杭打設工程は、まず地盤９０にダウンザホールハンマなどを用いて削孔し、鋼管杭２０を建て込む孔９５を形成する。孔９５は、地盤９０の表面９４側にある堆積層９２を貫通し、支持層９３に達している。 In the road structures 100 and 200, steel pipe piles 20 are first driven into the ground 90 in parallel with the first direction in which the road extends and the second direction intersecting the first direction. This process is called a steel pipe pile driving process. In the steel pipe pile driving process, first, a hole is drilled in the ground 90 using a down-the-hole hammer or the like to form a hole 95 in which the steel pipe pile 20 is built. The hole 95 penetrates the sedimentary layer 92 on the surface 94 side of the ground 90 and reaches the support layer 93.
　図１６は、孔９５に鋼管杭２０を建て込んだ状態の説明図である。図１６の中心線から右側の部分は、鋼管杭２０の中心軸を含む断面における構造を示している。鋼管杭２０は、孔９５の底面９６に先端が達するように孔９５に建て込まれる。そして、鋼管杭２０の位置を決めた状態で、鋼管杭２０の上端の開口から充填材８０が注入される。充填材８０は、例えばモルタル又はコンクリート等が用いられる。充填材８０は、中空の筒形状である鋼管杭２０を通り、孔９５の底面９６側の鋼管杭２０の端部に設けられている貫通孔１５から孔９５と鋼管杭２０の外側面との間の隙間９７に流れ込む。 FIG. 16 is an explanatory view of a state in which the steel pipe pile 20 is built in the hole 95. The portion on the right side from the center line of FIG. 16 shows the structure in the cross section including the central axis of the steel pipe pile 20. The steel pipe pile 20 is built in the hole 95 so that the tip reaches the bottom surface 96 of the hole 95. Then, with the position of the steel pipe pile 20 determined, the filler 80 is injected from the opening at the upper end of the steel pipe pile 20. As the filler 80, for example, mortar or concrete is used. The filler 80 passes through the hollow tubular steel pipe pile 20 and connects the hole 95 and the outer surface of the steel pipe pile 20 from the through hole 15 provided at the end of the steel pipe pile 20 on the bottom surface 96 side of the hole 95. It flows into the gap 97 between them.
　隙間９７に流れ込んだ充填材８０は、鋼管杭２０の内部の空間が充填材８０に満たされるに従い、隙間９７を上昇する。充填材８０が隙間９７から地盤９０の表面９４から流出するのが確認できれば、鋼管杭２０と孔９５との間の隙間９７が充填材８０で満たされたことが確認できる。鋼管杭２０と孔９５との間の隙間９７に地盤９０の表面９４から充填材８０を直接充填した場合、鋼管杭２０の周りに均等に充填材８０を充填するのが困難である。また、地盤９０の条件によっては、孔９５の表面が円滑ではなく充填材８０に土砂が混入したり、底面９６まで十分に充填材８０が充填されない場合がある。充填材８０の充填が不十分な場合、鋼管杭２０の支持力が設計値を確保できないおそれがある。しかし、実施の形態３における鋼管杭打設工程によれば、以上のように行うことで、鋼管杭２０が地盤９０に確実に打設される。 The filler 80 that has flowed into the gap 97 rises in the gap 97 as the space inside the steel pipe pile 20 is filled with the filler 80. If it can be confirmed that the filler 80 flows out from the gap 97 from the surface 94 of the ground 90, it can be confirmed that the gap 97 between the steel pipe pile 20 and the hole 95 is filled with the filler 80. When the filler 80 is directly filled from the surface 94 of the ground 90 into the gap 97 between the steel pipe pile 20 and the hole 95, it is difficult to evenly fill the filler 80 around the steel pipe pile 20. Further, depending on the conditions of the ground 90, the surface of the hole 95 may not be smooth and earth and sand may be mixed in the filler 80, or the filler 80 may not be sufficiently filled up to the bottom surface 96. If the filling material 80 is insufficiently filled, the bearing capacity of the steel pipe pile 20 may not be able to secure the design value. However, according to the steel pipe pile driving step in the third embodiment, the steel pipe pile 20 is surely driven into the ground 90 by performing as described above.
　鋼管杭２０は、道路構造１００及び２００に複数用いられる。複数の鋼管杭２０は、全て上記の鋼管杭打設工程により地盤９０に打設される。 A plurality of steel pipe piles 20 are used for road structures 100 and 200. The plurality of steel pipe piles 20 are all driven into the ground 90 by the above-mentioned steel pipe pile driving step.
　次に、複数の鋼管杭２０のうち第１鋼管杭２０ａに鋼管支柱３０が仮接合され、支持杭１０ａが仮組立される。また、支持杭１０ａの杭頭１２及び複数の鋼管杭２０のうち第２鋼管杭２０ｂの杭頭２１ｂに上端格点鋼管５０ａが仮接合される。仮接合は、型枠治具７０を用いることにより、一時的に鋼管支柱３０、上端格点鋼管５０ａ、及び中間格点鋼管５０ｂを、鋼管杭２０に設置することである。これを仮接合工程と呼ぶ。以下に仮接合工程の詳細について説明する。 Next, the steel pipe column 30 is temporarily joined to the first steel pipe pile 20a among the plurality of steel pipe piles 20, and the support pile 10a is temporarily assembled. Further, the upper end grade steel pipe 50a is temporarily joined to the pile head 12 of the support pile 10a and the pile head 21b of the second steel pipe pile 20b among the plurality of steel pipe piles 20. Temporary joining is to temporarily install the steel pipe column 30, the upper end grade steel pipe 50a, and the intermediate grade steel pipe 50b on the steel pipe pile 20 by using the formwork jig 70. This is called a temporary joining process. The details of the temporary joining process will be described below.
　図１７は、実施の形態３の仮接合工程に用いられる型枠治具７０の構造の説明図である。図１７においては、上端格点鋼管５０ａを鋼管杭２０に設置する場合の図を示しているが、中間格点鋼管５０ｂを設置する場合においても型枠治具７０の使用方法は同じである。鋼管杭２０の杭頭２１に中間格点鋼管５０ｂを設置する際に、鋼管杭２０の杭頭２１に型枠治具７０を用いる。 FIG. 17 is an explanatory diagram of the structure of the formwork jig 70 used in the temporary joining step of the third embodiment. FIG. 17 shows a diagram when the upper end grade steel pipe 50a is installed on the steel pipe pile 20, but the method of using the formwork jig 70 is the same even when the intermediate grade steel pipe 50b is installed. When installing the intermediate grade steel pipe 50b on the pile head 21 of the steel pipe pile 20, the formwork jig 70 is used on the pile head 21 of the steel pipe pile 20.
　型枠治具７０は、型枠板７４を支持するブラケット７１を備える。ブラケット７１は、固定バンド７３に接続されている。固定バンド７３は、鋼管杭２０の外側面を包囲する様にして鋼管杭２０に着脱自在に固定され、ブラケット７１の位置を固定する。固定バンド７３により型枠治具７０を鋼管杭２０に設置する工程を特に型枠設置工程と呼ぶ。型枠設置工程は、仮接合工程に含まれる。 The formwork jig 70 includes a bracket 71 that supports the formwork plate 74. The bracket 71 is connected to the fixing band 73. The fixing band 73 is detachably fixed to the steel pipe pile 20 so as to surround the outer surface of the steel pipe pile 20, and fixes the position of the bracket 71. The process of installing the formwork jig 70 on the steel pipe pile 20 by the fixing band 73 is particularly called a formwork installation process. The formwork installation process is included in the temporary joining process.
　中間格点鋼管５０ｂは、鋼管部材５１ｂの下端面に型枠治具７０の型枠板７４を当接させるように設置される。この工程を筒体設置工程と呼ぶ。筒体設置工程は、接合工程に含まれる。型枠板７４は、中間格点鋼管５０ｂの内部に注入される充填材８０が漏れ出ないように設置される。 The intermediate grade steel pipe 50b is installed so as to bring the form plate 74 of the form jig 70 into contact with the lower end surface of the steel pipe member 51b. This process is called a cylinder installation process. The cylinder installation process is included in the joining process. The formwork plate 74 is installed so that the filler 80 injected into the intermediate grade steel pipe 50b does not leak out.
　ブラケット７１は、調整ボルト７５を備える。調整ボルト７５の先端は、型枠板７４の上に載置される中間格点鋼管５０ｂの鋼管部材５１ｂの外周面に当接する。調整ボルト７５は、ナット部材７６と螺合しており、先端の位置を精度良く調整できるとともに、中間格点鋼管５０ｂの鋼管部材５１ｂの位置を仮固定することができる。このように中間格点鋼管５０ｂの鋼管部材５１ｂの水平位置を調整し固定する工程を固定工程と呼ぶ。固定工程は、仮接合工程に含まれる。 The bracket 71 includes an adjustment bolt 75. The tip of the adjusting bolt 75 comes into contact with the outer peripheral surface of the steel pipe member 51b of the intermediate grade steel pipe 50b placed on the form plate 74. The adjusting bolt 75 is screwed with the nut member 76, so that the position of the tip can be adjusted with high accuracy and the position of the steel pipe member 51b of the intermediate grade steel pipe 50b can be temporarily fixed. The step of adjusting and fixing the horizontal position of the steel pipe member 51b of the intermediate grade steel pipe 50b in this way is called a fixing step. The fixing step is included in the temporary joining step.
　中間格点鋼管５０ｂが第１鋼管杭２０ａの杭頭２１ａに取り付けられた後に、中間格点鋼管５０ｂに鋼管支柱３０が建て込まれる。これを鋼管支柱建て込み工程と呼ぶ。鋼管支柱建て込み工程は、仮接合工程に含まれる。 After the intermediate grade steel pipe 50b is attached to the pile head 21a of the first steel pipe pile 20a, the steel pipe column 30 is built in the intermediate grade steel pipe 50b. This is called the steel pipe support building process. The steel pipe support building process is included in the temporary joining process.
　次に、第１鋼管杭２０ａに鋼管支柱３０が接続されている支持杭１０ａ及び第２鋼管杭２０ｂの杭頭１２に上端格点鋼管５０ａが取り付けられる。上端格点鋼管５０ａの設置は、中間格点鋼管５０ｂを鋼管杭２０の杭頭２１に設置するのと同様に、型枠設置工程、筒体設置工程、及び固定工程により行われる。 Next, the upper end grade steel pipe 50a is attached to the pile head 12 of the support pile 10a and the second steel pipe pile 20b to which the steel pipe column 30 is connected to the first steel pipe pile 20a. The installation of the upper end grade steel pipe 50a is carried out by a formwork installation step, a cylinder installation step, and a fixing step in the same manner as the installation of the intermediate grade point steel pipe 50b at the pile head 21 of the steel pipe pile 20.
　中間格点鋼管５０ｂが設置された後に、梁部材４０が設置される。この工程を梁部材設置工程と呼ぶ。また、上端格点鋼管５０ａが設置された後に、桁部材４１が設置される。この工程を桁部材設置工程と呼ぶ。梁部材設置工程及び桁部材設置工程は、仮接合工程に含めることができる。 After the intermediate grade steel pipe 50b is installed, the beam member 40 is installed. This process is called a beam member installation process. Further, the girder member 41 is installed after the upper end grade point steel pipe 50a is installed. This process is called a girder member installation process. The beam member installation process and the girder member installation process can be included in the temporary joining process.
　実施の形態１に係る道路構造１００は、上記のように型枠治具７０を用いることにより、格点鋼管５０に充填材８０を注入しない状態で支持杭１０ａ及び１０ｂを仮組立することができる。そのため、仮組立した支持杭１０ａ及び１０ｂの上に覆工版（図示せず）を設置し、道路に沿った第１方向に次々に支持杭１０ａ及び１０ｂを立設することができる。つまり、鋼管打設工程と仮接合工程とは、交互に繰り返され、道路全長分又は所定の道路の長さの分の支持杭１０ａ及び１０ｂが建て終わるまで繰り返される。以上の工程をまとめて、支持杭立設工程と呼ぶ。 In the road structure 100 according to the first embodiment, the support piles 10a and 10b can be temporarily assembled by using the formwork jig 70 as described above without injecting the filler 80 into the grade steel pipe 50. .. Therefore, a lining plate (not shown) can be installed on the temporarily assembled support piles 10a and 10b, and the support piles 10a and 10b can be erected one after another in the first direction along the road. That is, the steel pipe placing process and the temporary joining process are alternately repeated until the support piles 10a and 10b for the entire length of the road or the predetermined length of the road are completed. The above steps are collectively called the support pile erection process.
　支持杭立設工程により、支持杭１０ａ及び１０ｂが建てられ、支持杭１０ａ及び１０ａの杭頭１２に上端格点鋼管５０ａが仮固定された状態になったら、格点鋼管５０の内部に充填材８０が注入される。この工程を注入固化工程と呼ぶ。なお、格点鋼管５０は、上端格点鋼管５０ａ及び中間格点鋼管５０ｂを総称したものである。注入固化工程は、道路全長分の仮組立状態の支持杭１０ａ及び１０ｂを立設した後に、全ての格点鋼管５０について実施すると良い。 When the support piles 10a and 10b are built by the support pile erection process and the upper end grade steel pipe 50a is temporarily fixed to the pile heads 12 of the support piles 10a and 10a, the filler 80 is placed inside the support pile pipe 50. Infused. This process is called an injection solidification process. The graded steel pipe 50 is a general term for the upper end graded steel pipe 50a and the intermediate graded steel pipe 50b. The injection solidification step may be carried out for all the graded steel pipes 50 after the support piles 10a and 10b in the temporarily assembled state for the entire length of the road are erected.
　型枠治具７０を用いないで道路構造１００を設置する場合、道路に沿った第１方向に最初の支持杭１０を建て、格点鋼管５０に注入された充填材８０を固化させた後に覆工版を支持杭１０の上に設置する。そして、設置された覆工版の上に重機を載せ、次の支持杭１０を建てる。このような工程の場合、支持杭１０を建てるごとに充填材８０の注入固化工程が必要となるため、工期が長くなってしまう。一方、道路構造１００は、型枠治具７０を用いることにより、充填材８０の注入固化工程の回数を抑えることができるため、工期を短縮することができるという利点がある。 When the road structure 100 is installed without using the formwork jig 70, the first support pile 10 is erected in the first direction along the road, and the filler 80 injected into the grade steel pipe 50 is solidified and then covered. The formwork is installed on the support pile 10. Then, a heavy machine is placed on the installed lining plate, and the next support pile 10 is built. In the case of such a process, the injection and solidification step of the filler 80 is required every time the support pile 10 is built, so that the construction period becomes long. On the other hand, the road structure 100 has an advantage that the construction period can be shortened because the number of injection and solidification steps of the filler 80 can be suppressed by using the formwork jig 70.
　道路構造１００は、注入固化工程が完了した後に覆工版が撤去され、道路床版９９が設置される。 For the road structure 100, the lining slab is removed after the injection solidification process is completed, and the road floor slab 99 is installed.
　図１８は、覆工版の一例を示す側面図である。覆工版は、鋼管杭打設工程と仮接合工程とを繰り返している際に仮組立てされた支持杭１０の上に載置されるものである。図１８に示される覆工版３９９は、仮設の杭頭ブロック３５０ａを備えている。そのため、道路構造１００の上端格点鋼管５０ａを設置せずに杭頭ブロック３５０ａを杭頭１２にはめ込み、覆工版３９９を設置できる様にしたものである。このような覆工版３９９を用いることにより、鋼管杭打設工程のみをまとめて実施することができるため、杭打機の拘束時間を短縮することができる。 FIG. 18 is a side view showing an example of the lining plate. The lining plate is placed on the support pile 10 temporarily assembled when the steel pipe pile driving process and the temporary joining process are repeated. The lining plate 399 shown in FIG. 18 includes a temporary pile head block 350a. Therefore, the pile head block 350a is fitted into the pile head 12 without installing the upper end grade steel pipe 50a of the road structure 100 so that the lining plate 399 can be installed. By using such a lining plate 399, only the steel pipe pile driving process can be carried out collectively, so that the restraint time of the pile driver can be shortened.
　実施の形態４．
　実施の形態４においては、実施の形態１に係る道路構造１００及び実施の形態２に係る道路構造２００の変形例について説明する。 Embodiment 4.
In the fourth embodiment, a modification of the road structure 100 according to the first embodiment and the road structure 200 according to the second embodiment will be described.
　図１９は、実施の形態１に係る道路構造１００の変形例の断面構造の説明図である。図２～図４に示されている様に、実施の形態１の道路構造１００は、道路が延びる第１方向に交差する第２方向に２本の支持杭１０が並列されているが、２本以上の支持杭１０が並列されていても良い。また、道路構造１００は、上端格点鋼管５０ａと中間格点鋼管５０ｂとの間、又は２つの中間格点鋼管５０ｂの間を連結し、横桁４１ｂに対し傾斜している斜め梁４８を備えていても良い。斜め梁４８は、支持杭１０及び横桁４１ｂ又は横梁４０ｂにより構成される矩形の構造の対角に位置する２つの格点鋼管５０を連結するものである。道路構造１００は、斜め梁４８によるトラス構造によって架構の変形が抑止され、部材応力が低減できる。 FIG. 19 is an explanatory view of a cross-sectional structure of a modified example of the road structure 100 according to the first embodiment. As shown in FIGS. 2 to 4, in the road structure 100 of the first embodiment, two support piles 10 are arranged in parallel in the second direction intersecting the first direction in which the road extends, but 2 More than one support pile 10 may be arranged in parallel. Further, the road structure 100 includes an oblique beam 48 that connects between the upper end grade steel pipe 50a and the intermediate grade steel pipe 50b or between two intermediate grade steel pipes 50b and is inclined with respect to the cross girder 41b. You may have. The oblique beam 48 connects two graded steel pipes 50 located diagonally to a rectangular structure composed of a support pile 10 and a cross girder 41b or a cross beam 40b. In the road structure 100, deformation of the frame is suppressed by the truss structure formed by the oblique beams 48, and the member stress can be reduced.
　また、図１９に示されている道路構造１００は、実施の形態２の道路構造２００で用いられている偏心接合部材２６０を用いて構成されていても良い。図１９に示されている道路構造１００は、支持杭１０の杭頭１２に実施の形態２に示されている上端格点鋼管２５０ａ及び偏心接合部材２６０が適用され、鋼管支柱３０には図８に示されている二重管型の中間格点鋼管５０ｂが設置されている。上端格点鋼管２５０ａと横桁４１ｂは、予め一体に製作されており、格点桁となっている。また、中間格点鋼管５０ｂと横梁４０ｂとは、予め一体に製作されており、格点梁となっている。これにより、格点鋼管５０は、個別に測量心出し設置する手間が省け、省力化、工程短縮が図れる。また、上端格点鋼管２５０ａは、横桁４１ｂにより複数が一体化されているため、偏心接合部材２６０の上部に安定して設置できる。中間格点鋼管５０ｂも横梁４０ｂと一体に製造されており、同様な効果をもつ。また、格点鋼管５０は斜材によって互いに接合されており、斜め梁４８によるトラス構造によって架構の変形が抑止され、部材応力が低減できる。 Further, the road structure 100 shown in FIG. 19 may be configured by using the eccentric joining member 260 used in the road structure 200 of the second embodiment. In the road structure 100 shown in FIG. 19, the upper end grade steel pipe 250a and the eccentric joint member 260 shown in the second embodiment are applied to the pile head 12 of the support pile 10, and the steel pipe column 30 is shown in FIG. The double pipe type intermediate grade steel pipe 50b shown in is installed. The upper end grade steel pipe 250a and the cross girder 41b are integrally manufactured in advance to form a grade girder. Further, the intermediate grade steel pipe 50b and the cross beam 40b are integrally manufactured in advance to form a grade beam. As a result, it is possible to save labor and shorten the process by saving the labor of individually measuring and installing the graded steel pipe 50. Further, since a plurality of upper end grade steel pipes 250a are integrated by the cross girder 41b, they can be stably installed on the upper part of the eccentric joint member 260. The intermediate grade steel pipe 50b is also manufactured integrally with the cross beam 40b, and has the same effect. Further, the graded steel pipes 50 are joined to each other by diagonal members, and the truss structure of the diagonal beams 48 suppresses the deformation of the frame and reduces the member stress.
　また、図１９に示されている道路構造１００は、接合部１１において偏心接合部材２６０が適用されている。偏心接合部材２６０の上面２６２には鋼管支柱３０の下側の端面が載置され、鋼管支柱３０の水平方向位置が調整されて接合されている。 Further, in the road structure 100 shown in FIG. 19, an eccentric joint member 260 is applied at the joint portion 11. The lower end surface of the steel pipe column 30 is placed on the upper surface 262 of the eccentric joining member 260, and the horizontal position of the steel pipe column 30 is adjusted and joined.
　図２０及び図２１は、上端格点鋼管２５０ａと横桁４１ｂとを一体化した格点桁の一例である。図１９に示された道路構造１００に適用されている格点桁は、具体的には図２０及び図２１に示されるような形態としても良い。 20 and 21 are examples of grade girders in which the upper end grade steel pipe 250a and the cross girder 41b are integrated. The rating girder applied to the road structure 100 shown in FIG. 19 may be specifically in the form shown in FIGS. 20 and 21.
　図２２及び図２３は、実施の形態１に係る道路構造１００及び実施の形態２に係る道路構造２００の変形例の断面構造の説明図である。図２２に示される様に、道路構造１００及び２００の横桁４１ｂは、地盤９０の斜面側に張り出して形成されていても良い。この構造は、斜面勾配が急で鋼管杭２０の設置が困難な場合に適用される。また、図２３に示される様に、斜面を削って設けられた道路を拡幅する様に道路構造１００及び２００を設置することもできる。 22 and 23 are explanatory views of cross-sectional structures of modified examples of the road structure 100 according to the first embodiment and the road structure 200 according to the second embodiment. As shown in FIG. 22, the cross girders 41b of the road structures 100 and 200 may be formed so as to project to the slope side of the ground 90. This structure is applied when the slope slope is steep and it is difficult to install the steel pipe pile 20. Further, as shown in FIG. 23, the road structures 100 and 200 can be installed so as to widen the road provided by cutting the slope.
　図２４は、実施の形態１に係る道路構造１００及び実施の形態２に係る道路構造２００の変形例の側面図である。図２４に示される様に、例えば地盤９０からの突出量が少ない支持杭１０ｂの杭頭１２に免震部材５を設けても良い。これにより、道路構造１００及び２００は、全体に掛かる荷重負担が軽減する。 FIG. 24 is a side view of a modified example of the road structure 100 according to the first embodiment and the road structure 200 according to the second embodiment. As shown in FIG. 24, for example, the seismic isolation member 5 may be provided on the pile head 12 of the support pile 10b having a small amount of protrusion from the ground 90. As a result, the load load on the road structures 100 and 200 as a whole is reduced.
　実施の形態５．
　実施の形態５においては、実施の形態１に係る道路構造１００及び実施の形態２に係る道路構造２００の上端格点鋼管５０ａ及び中間格点鋼管１５０ｂの変形例について説明する。実施の形態５に係る道路構造１００の各部については、各図面において同一の機能を有するものは実施の形態１～４の説明で使用した図面と同一の符号を付して表示するものとする。 Embodiment 5.
In the fifth embodiment, a modification of the upper end grade steel pipe 50a and the intermediate grade steel pipe 150b of the road structure 100 according to the first embodiment and the road structure 200 according to the second embodiment will be described. Regarding each part of the road structure 100 according to the fifth embodiment, those having the same function in each drawing shall be displayed with the same reference numerals as those used in the drawings of the first to fourth embodiments.
　（上端格点鋼管５５０ａの構造）
　図２５は、実施の形態５に係る道路構造１００の上端格点鋼管５５０ａ周辺の断面構造の説明図である。図２５（ｂ）は、図２５（ａ）のＥ－Ｅ部の断面を示している。図２６は、実施の形態５に係る道路構造１００の上端格点鋼管５５０ａの上面図及び側面図である。図２５に示すように、上端格点鋼管５５０ａと支持杭１０とは、偏心接合部材５６０ａにより接合される。偏心接合部材５６０ａは、上端格点鋼管５５０ａの一部であり、支持杭１０の杭頭１２と組み合わさり、杭頭１２に対する上端格点鋼管５５０ａの位置を調整できるようにするためのものである。即ち、上端格点鋼管５５０ａは、偏心接合部材５６０ａにより、支持杭１０と中心軸の位置がずれた状態で支持杭１０に接合することができる。実施の形態５に係る上端格点鋼管５５０ａと杭頭１２とを接合する偏心接合部材５６０ａを、特に第４偏心接合部材と称する場合がある。 (Structure of upper end grade steel pipe 550a)
FIG. 25 is an explanatory view of a cross-sectional structure around the upper end grade point steel pipe 550a of the road structure 100 according to the fifth embodiment. FIG. 25 (b) shows a cross section of the EE portion of FIG. 25 (a). FIG. 26 is a top view and a side view of the upper end grade point steel pipe 550a of the road structure 100 according to the fifth embodiment. As shown in FIG. 25, the upper end grade point steel pipe 550a and the support pile 10 are joined by an eccentric joining member 560a. The eccentric joining member 560a is a part of the upper end grade steel pipe 550a and is for being combined with the pile head 12 of the support pile 10 so that the position of the upper end grade steel pipe 550a with respect to the pile head 12 can be adjusted. .. That is, the upper end grade steel pipe 550a can be joined to the support pile 10 by the eccentric joining member 560a in a state where the positions of the support pile 10 and the central axis are deviated from each other. The eccentric joining member 560a for joining the upper end grade steel pipe 550a and the pile head 12 according to the fifth embodiment may be particularly referred to as a fourth eccentric joining member.
　実施の形態５において、偏心接合部材５６０ａは、円柱形状の差し込み部材６１と差し込み部材６１の外周面に接合され放射状に延びるリブ部材６２とを有する。差し込み部材６１とリブ部材６２とは、上端格点鋼管５５０ａを構成する筒体である鋼管部材５１ａの内側に配置されており、下部が鋼管部材５１ａの下端から下方に突出している。 In the fifth embodiment, the eccentric joining member 560a has a cylindrical insertion member 61 and a rib member 62 joined to the outer peripheral surface of the insertion member 61 and extending radially. The insertion member 61 and the rib member 62 are arranged inside the steel pipe member 51a, which is a tubular body constituting the upper end grade steel pipe 550a, and the lower portion projects downward from the lower end of the steel pipe member 51a.
　図２７は、図２６（ｂ）のＦ－Ｆ部の断面図である。上端格点鋼管５５０ａの鋼管部材５１ａに接合されている下部プレート５９は、鋼管部材５１ａの内部から差し込み部材６１が突出する開口部５９ａを備える。実施の形態５においては、開口部５９ａは、差し込み部材６１が挿通される程度に開口されている。リブ部材６２は、鋼管部材５１ａの内部に配置されている内部リブ部材６２ｂと、下部プレート５９の下方に接合されている外部リブ部材６２ａと、からなる。すなわち、リブ部材６２は、鋼管部材５１ａの内部と鋼管部材５１ａの外部とにそれぞれ接合されている。なお、外部リブ部材６２ａと内部リブ部材６２ｂとは、差し込み部材６１の強度及び剛性によって設置されていなくともよい。 FIG. 27 is a cross-sectional view of the FF portion of FIG. 26 (b). The lower plate 59 joined to the steel pipe member 51a of the upper end grade steel pipe 550a includes an opening 59a in which the insertion member 61 projects from the inside of the steel pipe member 51a. In the fifth embodiment, the opening 59a is opened to the extent that the insertion member 61 is inserted. The rib member 62 includes an internal rib member 62b arranged inside the steel pipe member 51a and an outer rib member 62a joined below the lower plate 59. That is, the rib member 62 is joined to the inside of the steel pipe member 51a and the outside of the steel pipe member 51a, respectively. The outer rib member 62a and the inner rib member 62b do not have to be installed depending on the strength and rigidity of the insertion member 61.
　差し込み部材６１及び内部リブ部材６２ｂの上端は、上端格点鋼管５５０ａの上面５７ａを構成する上部プレート５８に溶接により固定されている。また、内部リブ部材６２ｂの下端は、下部プレート５９に溶接により接合されている。内部リブ部材６２ｂは、差し込み部材６１の外周面にも接合されており、上部プレート５８、下部プレート５９及び差し込み部材６１を連結し、強度及び剛性を確保するものである。 The upper ends of the insertion member 61 and the internal rib member 62b are fixed to the upper plate 58 constituting the upper surface 57a of the upper end grade steel pipe 550a by welding. Further, the lower end of the internal rib member 62b is joined to the lower plate 59 by welding. The internal rib member 62b is also joined to the outer peripheral surface of the insertion member 61, and connects the upper plate 58, the lower plate 59, and the insertion member 61 to ensure strength and rigidity.
　外部リブ部材６２ａは、下部プレート５９の下方に配置され、下部プレート５９の下面に接合されており、差し込み部材６１の外周面にも接合されている。外部リブ部材６２ａは、下部プレート５９と差し込み部材６１とを連結し、強度及び剛性を確保するものである。 The outer rib member 62a is arranged below the lower plate 59 and is joined to the lower surface of the lower plate 59, and is also joined to the outer peripheral surface of the insertion member 61. The outer rib member 62a connects the lower plate 59 and the insertion member 61 to ensure strength and rigidity.
　図２６に示されるように、上端格点鋼管５０ａの上部に接合されている上部プレート５８は、板状の部材を貫通する充填孔５６ａが２か所開口されている。充填孔５６ａは、差し込み部材６１を挟んで対称な位置に設けられている。また、図２７に示されるように、下部プレート５９も上部プレート５８と同様に充填孔５６ａが２か所設けられている。充填孔５６ａは、差し込み部材６１と杭頭１２との間に形成された空間に充填材８０を注入するための孔である。つまり、上端格点鋼管５０ａが杭頭１２の上方に載置された状態において、充填孔５６ａは、外部と鋼管部材５１ａの内部の空間と差し込み部材６１及び杭頭１２との間に形成される空間とを連通する。例えば、外部からコンクリート又はモルタル等の充填材を注入するにあたり、注入パイプ（図示なし）を上部プレート５８の充填孔５６ａから内部に挿入し、下部プレート５９の充填孔５６ａに充填材を注入する。充填材８０は、上端格点鋼管５０ａの一部である偏心接合部材５６０ａが差し込まれた杭頭１２の内部に充填され固化することにより、上端格点鋼管５０ａと杭頭１２とを接合する。 As shown in FIG. 26, the upper plate 58 joined to the upper part of the upper end grade steel pipe 50a has two filling holes 56a penetrating the plate-shaped member. The filling holes 56a are provided at symmetrical positions with the insertion member 61 in between. Further, as shown in FIG. 27, the lower plate 59 is also provided with two filling holes 56a like the upper plate 58. The filling hole 56a is a hole for injecting the filling material 80 into the space formed between the insertion member 61 and the pile head 12. That is, in a state where the upper end grade steel pipe 50a is placed above the pile head 12, the filling hole 56a is formed between the outside and the space inside the steel pipe member 51a and the insertion member 61 and the pile head 12. Communicate with space. For example, when injecting a filler such as concrete or mortar from the outside, an injection pipe (not shown) is inserted into the inside through the filling hole 56a of the upper plate 58, and the filler is injected into the filling hole 56a of the lower plate 59. The filler 80 joins the upper end grade steel pipe 50a and the pile head 12 by filling and solidifying the inside of the pile head 12 into which the eccentric joining member 560a which is a part of the upper end grade steel pipe 50a is inserted.
　図２５に示されるように、杭頭１２は、先端が開口されており、内部の空間に充填材受け板１６が設置されている。充填材受け板１６は、杭頭１２の内部に差し込まれた差し込み部材６１の下端よりも下方に配置されている。充填材受け板１６は、充填孔５６ａから注入された充填材８０を支持し、杭頭１２の内部に充填材を保持するための部材である。 As shown in FIG. 25, the tip of the pile head 12 is open, and the filler receiving plate 16 is installed in the internal space. The filler receiving plate 16 is arranged below the lower end of the insertion member 61 inserted into the pile head 12. The filler receiving plate 16 is a member for supporting the filler 80 injected from the filling hole 56a and holding the filler inside the pile head 12.
　杭頭１２は、端面１４が上端格点鋼管５０ａの下部プレート５９の下面に当接する。つまり、上端格点鋼管５０ａは、支持杭１０の端面１４に載置されている。これにより、上端格点鋼管５５０ａは、高さ方向の位置が決まる。そして、上端格点鋼管５０ａは、偏心接合部材５６０ａと杭頭１２の内面との隙間の分だけ水平方向にずらすことが可能である。これにより、支持杭１０の中心軸の位置がずれた場合であっても、上端格点鋼管５０ａを設計通りの位置に配置することが可能となる。 The end surface 14 of the pile head 12 abuts on the lower surface of the lower plate 59 of the upper end grade steel pipe 50a. That is, the upper end grade point steel pipe 50a is placed on the end surface 14 of the support pile 10. As a result, the position of the upper end grade steel pipe 550a in the height direction is determined. The upper end grade steel pipe 50a can be shifted in the horizontal direction by the amount of the gap between the eccentric joining member 560a and the inner surface of the pile head 12. As a result, even if the position of the central axis of the support pile 10 is deviated, the upper end grade steel pipe 50a can be arranged at the position as designed.
　図２７に示されるように、実施の形態５において差し込み部材６１は、円筒形状の鋼管である。ただし、差し込み部材６１は、円筒形状の鋼管に限定されるものではなく、断面が矩形状、楕円形状、長円形状又は多角形状の鋼管であってもよい。差し込み部材６１は、図２６において紙面上下方向及び左右方向の強度及び剛性が等しいものが望ましい。実施の形態５に係る道路構造１００は、差し込み部材６１が円筒形状であり、全方向に強度及び剛性が等しい。道路構造１００に必要とされる強度及び剛性に応じて差し込み部材６１は適宜形状を変更することができる。 As shown in FIG. 27, in the fifth embodiment, the insertion member 61 is a cylindrical steel pipe. However, the insertion member 61 is not limited to the cylindrical steel pipe, and may be a steel pipe having a rectangular cross section, an elliptical shape, an oval shape, or a polygonal shape. It is desirable that the insertion member 61 has the same strength and rigidity in the vertical direction and the horizontal direction of the paper surface in FIG. 26. In the road structure 100 according to the fifth embodiment, the insertion member 61 has a cylindrical shape, and the strength and rigidity are equal in all directions. The shape of the insertion member 61 can be appropriately changed according to the strength and rigidity required for the road structure 100.
　差し込み部材６１は、下端が板材６５で塞がれていても良い。板材６５は、円筒形状の鋼管で構成された差し込み部材６１の内部に充填材８０が侵入するのを防ぐことにより、上端格点鋼管５０ａと支持杭１０との接合に必要な充填材８０の量を抑制することができる。また、板材６５の外形は、差し込み部材６１の断面形状よりも大きく形成され、差し込み部材６１の外周面よりも突出することにより、充填材８０が固化した後に差し込み部材６１が杭頭１２から引き抜かれる方向についての強度が高くなる。 The lower end of the insertion member 61 may be closed with the plate material 65. The plate material 65 is an amount of the filler 80 required for joining the upper end grade steel pipe 50a and the support pile 10 by preventing the filler 80 from invading the inside of the insertion member 61 made of a cylindrical steel pipe. Can be suppressed. Further, the outer shape of the plate member 65 is formed larger than the cross-sectional shape of the insertion member 61 and protrudes from the outer peripheral surface of the insertion member 61, so that the insertion member 61 is pulled out from the pile head 12 after the filler 80 is solidified. The strength in the direction is high.
　上記の差し込み部材６１を用いた偏心接合部材５６０ａは、実施の形態１に係る中間格点鋼管１５０ｂにも応用することができる。 The eccentric joining member 560a using the insertion member 61 can also be applied to the intermediate grade steel pipe 150b according to the first embodiment.
　図２８は、実施の形態５に係る道路構造１００の中間格点鋼管５５０ｂ周辺の断面構造の説明図である。中間格点鋼管５５０ｂは、上端格点鋼管５５０ａと同様に偏心接合部材５６０ｂを備える。偏心接合部材５６０ｂは、上部プレート５８及び下部プレート５９の両方から突出するように設けられた差し込み部材６１と、差し込み部材６１と上部プレート５８及び下部プレート５９とを接合するリブ部材６２と、を備える。差し込み部材６１は、リブ部材６２により上部プレート５８及び下部プレート５９と接合されている。なお、中間格点鋼管５５０ｂが備える偏心接合部材５６０ｂは、特に第５偏心接合部材と称する場合がある。 FIG. 28 is an explanatory view of a cross-sectional structure around an intermediate grade steel pipe 550b of the road structure 100 according to the fifth embodiment. The intermediate grade steel pipe 550b includes an eccentric joint member 560b like the upper end grade steel pipe 550a. The eccentric joining member 560b includes an insertion member 61 provided so as to project from both the upper plate 58 and the lower plate 59, and a rib member 62 for joining the insertion member 61 with the upper plate 58 and the lower plate 59. .. The insertion member 61 is joined to the upper plate 58 and the lower plate 59 by the rib member 62. The eccentric joining member 560b included in the intermediate grade steel pipe 550b may be particularly referred to as a fifth eccentric joining member.
　差し込み部材６１は、鋼管部材５１ｂの内側に配置されており、上部プレート５８及び下部プレート５９を貫通するように配置されている。なお、差し込み部材６１は、上部プレート５８及び下部プレート５９と直接接合されていても良い。 The insertion member 61 is arranged inside the steel pipe member 51b, and is arranged so as to penetrate the upper plate 58 and the lower plate 59. The insertion member 61 may be directly joined to the upper plate 58 and the lower plate 59.
　また、差し込み部材６１は、図２８に示されるような上下に貫通する構成でなくともよく、上部プレート５８の上面及び下部プレート５９の下面にそれぞれ接合されて、上部プレート５８の上面及び下部プレート５９の下面のそれぞれから上下に延びるように構成されていても良い。 Further, the insertion member 61 does not have to be configured to penetrate vertically as shown in FIG. 28, and is joined to the upper surface of the upper plate 58 and the lower surface of the lower plate 59, respectively, and is joined to the upper surface of the upper plate 58 and the lower plate 59, respectively. It may be configured to extend vertically from each of the lower surfaces of the above.
　中間格点鋼管５５０ｂの上方に延びる差し込み部材６１は、上方部材である鋼管支柱３０に挿入される。中間格点鋼管５５０ｂの下方に延びる差し込み部材６１は、下方部材である第１鋼管杭２０ａに挿入される。中間格点鋼管５５０ｂから上下方向に延びる差し込み部材６１は、それぞれ鋼管支柱３０又は第１鋼管杭２０ａとの間に差し込まれた状態で充填材８０が充填されて、鋼管支柱３０、中間格点鋼管５５０ｂ及び第１鋼管杭２０ａを接合する。中間格点鋼管５５０ｂの偏心接合部材５６０ｂは、上端格点鋼管５５０ａと同様に下方部材である第１鋼管杭２０ａの中心軸と中間格点鋼管５５０ｂの中心軸とをずらした状態で接合できる。また、偏心接合部材５６０ｂは、中間格点鋼管５５０ｂの中心軸と鋼管支柱３０の中心軸とをずらした状態で接合できる。 The insertion member 61 extending above the intermediate grade steel pipe 550b is inserted into the steel pipe column 30 which is an upper member. The insertion member 61 extending below the intermediate grade steel pipe 550b is inserted into the first steel pipe pile 20a which is a lower member. The insertion member 61 extending in the vertical direction from the intermediate grade steel pipe 550b is filled with the filler 80 in a state of being inserted between the steel pipe support 30 or the first steel pipe pile 20a, respectively, and the steel pipe support 30 and the intermediate grade steel pipe are filled. The 550b and the first steel pipe pile 20a are joined. The eccentric joining member 560b of the intermediate grade steel pipe 550b can be joined in a state where the central axis of the first steel pipe pile 20a, which is a lower member, and the central axis of the intermediate grade steel pipe 550b are shifted in the same manner as the upper end grade steel pipe 550a. Further, the eccentric joining member 560b can be joined in a state where the central axis of the intermediate grade steel pipe 550b and the central axis of the steel pipe column 30 are offset.
　また、鋼管支柱３０及び第１鋼管杭２０ａには、それぞれ充填孔１７が設けられており、ここから充填材８０が充填される。充填材８０は、固化することにより、中間格点鋼管５５０ｂと鋼管支柱３０及び第１鋼管杭２０ａとを接合する。 Further, the steel pipe column 30 and the first steel pipe pile 20a are each provided with a filling hole 17, from which the filler 80 is filled. The filler 80 is solidified to join the intermediate grade steel pipe 550b, the steel pipe column 30, and the first steel pipe pile 20a.
　なお、図２８においてＧ－Ｇ部で示されるように、実施の形態５に係る中間格点鋼管５５０ｂの鋼管部材５１ｂの部分の断面構造は、図２７と同様な構造である。ただし、Ｇ－Ｇ部で示される断面においては、充填孔５６ａは設けられていなくても良い。 As shown by the GG portion in FIG. 28, the cross-sectional structure of the steel pipe member 51b of the intermediate grade steel pipe 550b according to the fifth embodiment has the same structure as that of FIG. 27. However, in the cross section shown by the GG portion, the filling hole 56a may not be provided.
　（実施の形態５の効果）
　上記のように、偏心接合部材５６０ａは、下方部材である支持杭１０の杭頭１２に向かって突出している差し込み部材６１を備える。差し込み部材６１は、支持杭１０の外形よりも小さく、支持杭１０の内側面に包囲されて設置されている。差し込み部材６１と支持杭１０の間に形成される隙間は、充填材８０が充填される。このように構成されることにより、偏心接合部材５６０ａは、支持杭１０の杭頭１２の内側に配置されるため、接合部分の外形が大きくなることがない。 (Effect of Embodiment 5)
As described above, the eccentric joining member 560a includes an insertion member 61 projecting toward the pile head 12 of the support pile 10 which is a lower member. The insertion member 61 is smaller than the outer shape of the support pile 10, and is surrounded and installed on the inner surface of the support pile 10. The gap formed between the insertion member 61 and the support pile 10 is filled with the filler 80. With this configuration, the eccentric joint member 560a is arranged inside the pile head 12 of the support pile 10, so that the outer shape of the joint portion does not become large.
　上端格点鋼管５５０ａは、上面を構成し桁部材４１に接合される上部プレート５８と、下面を構成し桁部材４１に接合される下部プレート５９と、を備える。差し込み部材６１は、上部プレート５８の下面に接合され、鋼管部材５１ａ及び下部プレート５９を貫通し下方に突出して配置される。このように構成されることにより、上端格点鋼管５０ａは、偏心接合部材５６０ａを介して、下方部材である支持杭１０に強固に接合される。 The upper end grade steel pipe 550a includes an upper plate 58 forming the upper surface and being joined to the girder member 41, and a lower plate 59 forming the lower surface and being joined to the girder member 41. The insertion member 61 is joined to the lower surface of the upper plate 58, penetrates the steel pipe member 51a and the lower plate 59, and is arranged so as to project downward. With this configuration, the upper end grade point steel pipe 50a is firmly joined to the support pile 10 which is a lower member via the eccentric joining member 560a.
　第１鋼管杭２０ａ、第２鋼管杭２０ｂ、鋼管支柱３０、上端格点鋼管５０ａ、５５０ａ、及び中間格点鋼管５５０ｂのうち、下方に位置する部材を下方部材とし、下方部材の上方に接合される部材を上方部材としたときに、下方部材と上方部材との接合部は、偏心接合部材５６０ｂにより接合される。中間格点鋼管５５０ｂは、偏心接合部材５６０ｂを備える。偏心接合部材５６０ｂは、上方部材及び下方部材に向かって突出している差し込み部材６１を備える。差し込み部材６１は、鋼管杭２０又は鋼管支柱３０の外形よりも小さく、鋼管杭２０又は鋼管支柱３０の内側面に包囲されて設置される。差し込み部材６１と鋼管杭２０又は鋼管支柱３０との間に形成される隙間は、充填材８０が充填される。このように構成されることにより、中間格点鋼管５５０ｂは、偏心接合部材５６０ｂを備えることにより、鋼管杭２０及び鋼管支柱３０に対して外形を大きくすることなく、鋼管杭２０及び鋼管支柱３０を偏心させた状態で接合することができる。 Of the first steel pipe pile 20a, the second steel pipe pile 20b, the steel pipe column 30, the upper end grade steel pipe 50a, 550a, and the intermediate grade steel pipe 550b, the lower member is the lower member and is joined above the lower member. When the member is an upper member, the joint portion between the lower member and the upper member is joined by the eccentric joining member 560b. The intermediate grade steel pipe 550b includes an eccentric joining member 560b. The eccentric joining member 560b includes an insertion member 61 projecting toward the upper member and the lower member. The insertion member 61 is smaller than the outer shape of the steel pipe pile 20 or the steel pipe column 30, and is surrounded and installed on the inner surface of the steel pipe pile 20 or the steel pipe column 30. The gap formed between the insertion member 61 and the steel pipe pile 20 or the steel pipe column 30 is filled with the filler 80. By being configured in this way, the intermediate grade steel pipe 550b is provided with the eccentric joint member 560b, so that the steel pipe pile 20 and the steel pipe column 30 can be formed without increasing the outer shape of the steel pipe pile 20 and the steel pipe column 30. It can be joined in an eccentric state.
　（実施の形態５の変形例）
　実施の形態５に係る偏心接合部材５６０ａ及び５６０ｂは、差し込み部材６１の断面形状を適宜変更することができる。 (Modified Example of Embodiment 5)
The eccentric joining members 560a and 560b according to the fifth embodiment can appropriately change the cross-sectional shape of the insertion member 61.
　図２９は、実施の形態５に係る上端格点鋼管５５０ａの変形例の断面構造の説明図である。図２９（ｂ）は、図２９（ａ）のＫ－Ｋ部の断面を示している。変形例の上端格点鋼管５５０ａにおいては、差し込み部材６１は、断面Ｔ形状の部材を十字に接合して構成されている。このように構成されることにより、差し込み部材６１は、図２９（ｂ）の上下方向及び左右方向において、同じ強度及び剛性を有する。また、差し込み部材６１は、断面がＴ形状であるため、充填材８０とウェブ部材６３及びフランジ部材６４とがかみ合い、接合強度が高い。 FIG. 29 is an explanatory view of a cross-sectional structure of a modified example of the upper end grade steel pipe 550a according to the fifth embodiment. FIG. 29 (b) shows a cross section of the KK portion of FIG. 29 (a). In the upper end grade steel pipe 550a of the modified example, the insertion member 61 is formed by joining members having a T-shaped cross section in a cross section. With this configuration, the insertion member 61 has the same strength and rigidity in the vertical direction and the horizontal direction of FIG. 29 (b). Further, since the insertion member 61 has a T-shaped cross section, the filler 80, the web member 63, and the flange member 64 mesh with each other, and the joining strength is high.
　図３０は、図２９（ａ）のＨ－Ｈ部の断面構造の説明図である。差し込み部材６１は、鋼管部材５１ａの内部にも設置されている。図２９においては、鋼管部材５１ａの内部に充填材８０は存在しないが、必要に応じて充填しても良い。鋼管部材５１ａの内部に充填材８０を充填することにより、上端格点鋼管５５０ａは、強度及び剛性をさらに向上させることができる。 FIG. 30 is an explanatory view of the cross-sectional structure of the HH portion of FIG. 29 (a). The insertion member 61 is also installed inside the steel pipe member 51a. In FIG. 29, the filler 80 does not exist inside the steel pipe member 51a, but it may be filled if necessary. By filling the inside of the steel pipe member 51a with the filler 80, the strength and rigidity of the upper end grade steel pipe 550a can be further improved.
　また、実施の形態５に係る上端格点鋼管５５０ａの変形例において、差し込み部材６１は、Ｈ形鋼に置換しても良い。差し込み部材６１がＨ形鋼で構成された上端格点鋼管５５０ａは、図２９（ｂ）に相当する断面において、上下方向と左右方向とで強度及び剛性が異なるが、道路構造１００に必要とされる上端格点鋼管５５０ａの強度及び剛性によって適宜変更することができる。差し込み部材６１をＨ形鋼にすることによって、上端格点鋼管５５０ａに係るコストを低減できる。 Further, in the modified example of the upper end grade steel pipe 550a according to the fifth embodiment, the insertion member 61 may be replaced with an H-shaped steel. The upper end grade steel pipe 550a in which the insertion member 61 is made of H-shaped steel has different strength and rigidity in the vertical direction and the horizontal direction in the cross section corresponding to FIG. 29 (b), but is required for the road structure 100. It can be appropriately changed depending on the strength and rigidity of the upper end grade steel pipe 550a. By using the H-shaped steel for the insertion member 61, the cost related to the upper end grade steel pipe 550a can be reduced.
　なお、図２９及び図３０に示されている実施の形態５に係る上端格点鋼管５５０ａの変形例に係る差し込み部材６１は、中間格点鋼管５５０ｂにも適用できる。 Note that the insertion member 61 according to the modified example of the upper end grade steel pipe 550a according to the fifth embodiment shown in FIGS. 29 and 30 can also be applied to the intermediate grade steel pipe 550b.
　以上に本発明を実施の形態に基づいて説明したが、本発明は上述した実施の形態の構成のみに限定されるものではない。特に構成要素の組み合わせは、実施の形態における組み合わせのみに限定するものではなく、各実施の形態に記載した構成要素の組み合わせは適宜変更することができる。また、いわゆる当業者が必要に応じてなす種々なる変更、応用、利用の範囲をも本発明の要旨（技術的範囲）に含むことを念のため申し添える。 Although the present invention has been described above based on the embodiment, the present invention is not limited to the configuration of the above-described embodiment. In particular, the combination of the components is not limited to the combination in the embodiment, and the combination of the components described in each embodiment can be appropriately changed. It is also added that the gist (technical scope) of the present invention includes various changes, applications, and uses made by those skilled in the art as necessary.
　５　免震部材、１０　支持杭、１０ａ　支持杭、１０ｂ　支持杭、１１　接合部、１２　杭頭、１３　突起、１４　端面、１５　貫通孔、２０　鋼管杭、２０ａ　第１鋼管杭、２０ｂ　第２鋼管杭、２１　杭頭、２１ａ　杭頭、２１ｂ　杭頭、２２ａ　端面、３０　鋼管支柱、３０ｂ　第２鋼管杭、３１　端面、４０　梁部材、４０ａ　縦梁、４０ｂ　横梁、４１　桁部材、４１ａ　縦桁、４１ｂ　横桁、４２　床版固定部材、４３　連結部、４４　添接板、４８　梁、５０　格点鋼管、５０ａ　上端格点鋼管、５０ｂ　中間格点鋼管、５１ａ　鋼管部材、５１ｂ　鋼管部材、５２ａ　縦桁仕口、５２ｂ　縦梁仕口、５３ａ　横桁仕口、５３ｂ　横梁仕口、５４　突起、５５ａ　支持部材、５５ｂ　支持部材、５６ａ　充填孔、５６ｂ　充填口、５７　ボルト、５７ａ　上面、５８　上部プレート、５９　下部プレート、５９ａ　開口部、６０　偏心接合部材、６０ａ　（第１）偏心接合部材、６０ｂ　（第２）偏心接合部材、６１　差し込み部材、６２　リブ部材、６２ａ　外部リブ部材、６２ｂ　内部リブ部材、６３　ウェブ部材、６４　フランジ部材、６５　板材、７０　型枠治具、７１　ブラケット、７３　固定バンド、７４　型枠板、７５　調整用ボルト、７６　ナット部材、８０　充填材、９０　地盤、９２　堆積層、９３　支持層、９４　表面、９５　孔、９６　底面、９７　隙間、９９　道路床版、１００　道路構造、１５０ｂ　中間格点鋼管、２００　道路構造、２５０ａ　上端格点鋼管、２５０ｂ　中間格点鋼管、２５１ａ　鋼管部材、２５１ｂ　鋼管部材、２５４ａ　下端面、２６０　（第３）偏心接合部材、２６１　板部材、２６２　上面、３５０ａ　杭頭ブロック、３９９　覆工版、５５０ａ　上端格点鋼管、５５０ｂ　中間格点鋼管、５６０ａ　偏心接合部材、５６０ｂ　偏心接合部材、１０００　道路構造、Ｃ　中心軸、Ｆ　入力、Δｘ　変位、Δｘ１　変位。 5 Seismic isolation member, 10 support pile, 10a support pile, 10b support pile, 11 joint, 12 pile head, 13 protrusion, 14 end face, 15 through hole, 20 steel pipe pile, 20a 1st steel pipe pile, 20b 2nd steel pipe pile , 21 pile head, 21a pile head, 21b pile head, 22a end face, 30 steel pipe column, 30b second steel pipe pile, 31 end face, 40 beam member, 40a vertical beam, 40b cross beam, 41 girder member, 41a vertical girder, 41b horizontal Girder, 42 floor slab fixing member, 43 connecting part, 44 splicing plate, 48 beam, 50 graded steel pipe, 50a upper end graded steel pipe, 50b intermediate graded steel pipe, 51a steel pipe member, 51b steel pipe member, 52a vertical girder joint , 52b vertical beam joint, 53a horizontal girder joint, 53b cross beam joint, 54 protrusion, 55a support member, 55b support member, 56a filling hole, 56b filling port, 57 bolt, 57a upper surface, 58 upper plate, 59 lower plate , 59a opening, 60 eccentric joining member, 60a (first) eccentric joining member, 60b (second) eccentric joining member, 61 insertion member, 62 rib member, 62a outer rib member, 62b inner rib member, 63 web member, 64 flange member, 65 plate material, 70 mold jig, 71 bracket, 73 fixing band, 74 mold plate, 75 adjustment bolt, 76 nut member, 80 filler, 90 ground, 92 deposition layer, 93 support layer, 94 Surface, 95 holes, 96 bottom, 97 gap, 99 road slab, 100 road structure, 150b intermediate grade steel pipe, 200 road structure, 250a upper end grade steel pipe, 250b intermediate grade steel pipe, 251a steel pipe member, 251b steel pipe member, 254a Lower end surface, 260 (third) eccentric joint member, 261 plate member, 262 upper surface, 350a Pile head block, 399 lining plate, 550a Upper grade point steel pipe, 550b Intermediate grade steel pipe, 560a Eccentric joint member, 560b Member, 1000 road structure, C central axis, F input, Δx displacement, Δx1 displacement.

Claims (23)

  1. 　道路が延びる第１方向及び前記第１方向に交差する第２方向に並列して地盤に打設される第１鋼管杭及び第２鋼管杭を含む鋼管杭と、
    　前記第１鋼管杭の上方に接続される鋼管支柱と、
    　前記第２鋼管杭又は前記鋼管支柱の上端に設置される上端格点鋼管と、
    　隣り合う２つの前記上端格点鋼管を連結する桁部材と、
    　前記上端格点鋼管及び前記桁部材の上に設置される道路床版と、を備え、
    　前記第１鋼管杭、前記第２鋼管杭、前記鋼管支柱、及び前記上端格点鋼管のうち、下方に位置する部材を下方部材とし、前記下方部材の上方に接合される部材を上方部材としたときに、
    　前記下方部材と前記上方部材との接合部は、
    　前記下方部材の中心軸と前記上方部材の中心軸とを偏心させた状態で接合できる偏心接合部材により接合される、道路構造。     A steel pipe pile including a first steel pipe pile and a second steel pipe pile that are driven into the ground in parallel with the first direction in which the road extends and the second direction intersecting the first direction.
    A steel pipe column connected above the first steel pipe pile and
    The upper end grade steel pipe installed at the upper end of the second steel pipe pile or the steel pipe column, and
    A girder member that connects two adjacent upper end grade steel pipes,
    The upper end grade steel pipe and the road slab installed on the girder member are provided.
    Of the first steel pipe pile, the second steel pipe pile, the steel pipe strut, and the upper end grade steel pipe, a member located below is a lower member, and a member joined above the lower member is an upper member. sometimes,
    The joint between the lower member and the upper member is
    A road structure joined by an eccentric joining member capable of joining the central axis of the lower member and the central axis of the upper member in an eccentric state.
  2. 　前記偏心接合部材は、
    　少なくとも第１偏心接合部材を含み、
    　前記上端格点鋼管は、
    　筒体を含む前記第１偏心接合部材を備え、
    　前記筒体は、
    　前記鋼管杭又は前記鋼管支柱の外形よりも大きく、
    　前記鋼管杭又は前記鋼管支柱の外側面を包囲して設置され、
    　前記筒体と前記鋼管杭又は前記鋼管支柱との間に形成される隙間は、
    　充填材が充填される、請求項１に記載の道路構造。     The eccentric joining member is
    Including at least the first eccentric joining member
    The upper end grade steel pipe is
    The first eccentric joining member including the tubular body is provided.
    The cylinder is
    Larger than the outer shape of the steel pipe pile or the steel pipe column,
    It is installed by surrounding the outer surface of the steel pipe pile or the steel pipe column.
    The gap formed between the cylinder and the steel pipe pile or the steel pipe column is
    The road structure according to claim 1, wherein the filler is filled.
  3. 　前記筒体の内側面は、
    　突起が設けられている、請求項２に記載の道路構造。     The inner surface of the cylinder
    The road structure according to claim 2, wherein the road structure is provided with protrusions.
  4. 　前記筒体は、
    　縞鋼板又はリブ付き鋼板により形成される、請求項３に記載の道路構造。     The cylinder is
    The road structure according to claim 3, which is formed of a striped steel plate or a ribbed steel plate.
  5. 　前記桁部材は、
    　前記第１方向に並列された２つの前記鋼管杭又は前記鋼管支柱の間に設置される縦桁を含む、請求項１～４の何れか１項に記載の道路構造。     The girder member
    The road structure according to any one of claims 1 to 4, which includes two steel pipe piles arranged in parallel in the first direction or a vertical girder installed between the steel pipe columns.
  6. 　前記桁部材は、
    　前記第２方向に並列された２つの前記鋼管杭又は前記鋼管支柱の間に設置される横桁を含む、請求項１～５の何れか１項に記載の道路構造。     The girder member
    The road structure according to any one of claims 1 to 5, which includes two steel pipe piles arranged in parallel in the second direction or a cross girder installed between the steel pipe columns.
  7. 　前記第１鋼管杭、前記第２鋼管杭、又は前記鋼管支柱に設置される中間格点鋼管と、
    　隣り合う２つの前記中間格点鋼管を連結する梁部材と、をさらに備え、
    　前記偏心接合部材は、
    　少なくとも第２偏心接合部材を含み、
    　前記第１鋼管杭、前記第２鋼管杭、前記鋼管支柱、前記上端格点鋼管、及び前記中間格点鋼管のうち、下方に位置する部材を下方部材とし、前記下方部材の上方に接合される部材を上方部材としたときに、前記下方部材と前記上方部材との接合部は、前記第２偏心接合部材により接合され、
    　前記中間格点鋼管は、
    　筒体を含む前記第２偏心接合部材を備え、
    　前記筒体は、
    　前記鋼管杭又は前記鋼管支柱の外形よりも大きく、
    　前記鋼管杭又は前記鋼管支柱の外側面を包囲して設置され、
    　前記筒体と前記鋼管杭又は前記鋼管支柱との間に形成される隙間は、
    　充填材が充填される、請求項１～６の何れか１項に記載の道路構造。     An intermediate grade steel pipe installed on the first steel pipe pile, the second steel pipe pile, or the steel pipe column,
    A beam member that connects two adjacent intermediate grade steel pipes is further provided.
    The eccentric joining member is
    Including at least the second eccentric joining member
    Of the first steel pipe pile, the second steel pipe pile, the steel pipe strut, the upper end grade steel pipe, and the intermediate grade steel pipe, the lower member is a lower member and is joined above the lower member. When the member is an upper member, the joint portion between the lower member and the upper member is joined by the second eccentric joining member.
    The intermediate grade steel pipe is
    The second eccentric joining member including the tubular body is provided.
    The cylinder is
    Larger than the outer shape of the steel pipe pile or the steel pipe column,
    It is installed by surrounding the outer surface of the steel pipe pile or the steel pipe column.
    The gap formed between the cylinder and the steel pipe pile or the steel pipe column is
    The road structure according to any one of claims 1 to 6, wherein the filler is filled.
  8. 　前記筒体の内側面は、
    　突起が設けられている、請求項７に記載の道路構造。     The inner surface of the cylinder
    The road structure according to claim 7, wherein the protrusion is provided.
  9. 　前記筒体は、
    　縞鋼板又はリブ付き鋼板により形成される、請求項８に記載の道路構造。     The cylinder is
    The road structure according to claim 8, which is formed of a striped steel plate or a ribbed steel plate.
  10. 　前記中間格点鋼管は、
    　前記接合部において前記上方部材及び前記下方部材の両方の端部にまたがって配置される、請求項７～９の何れか１項に記載の道路構造。     The intermediate grade steel pipe is
    The road structure according to any one of claims 7 to 9, which is arranged across both ends of the upper member and the lower member at the joint.
  11. 　前記梁部材は、
    　前記第１方向に並列された２つの前記鋼管杭又は前記鋼管支柱の間に設置される縦梁を含む、請求項７～１０の何れか１項に記載の道路構造。     The beam member
    The road structure according to any one of claims 7 to 10, further comprising two steel pipe piles arranged in parallel in the first direction or a vertical beam installed between the steel pipe columns.
  12. 　前記梁部材は、
    　前記第２方向に並列された２つの前記鋼管杭又は前記鋼管支柱の間に設置される横梁を含む、請求項７～１１の何れか１項に記載の道路構造。     The beam member
    The road structure according to any one of claims 7 to 11, which includes two steel pipe piles arranged in parallel in the second direction or a cross beam installed between the steel pipe columns.
  13. 　前記横梁は、
    　前記中間格点鋼管と一体に形成されている、請求項１２に記載の道路構造。     The cross beam is
    The road structure according to claim 12, which is integrally formed with the intermediate grade steel pipe.
  14. 　前記上端格点鋼管と前記中間格点鋼管との間、又は２つの前記中間格点鋼管の間を連結し、前記桁部材に対し傾斜している斜め梁をさらに備える、請求項７～１３の何れか１項に記載の道路構造。 Claims 7 to 13, further comprising an oblique beam that is connected between the upper end grade steel pipe and the intermediate grade steel pipe or between the two intermediate grade steel pipes and is inclined with respect to the girder member. The road structure according to any one item.
  15. 　前記偏心接合部材は、
    　少なくとも第３偏心接合部材を含み、
    　前記第３偏心接合部材は、
    　上面に前記上方部材が接合される接合面を備え、前記下方部材の上端に接合され、
    　前記接合面の外形は、
    　前記上方部材の外形よりも大きい、請求項１～１４の何れか１項に記載の道路構造。     The eccentric joining member is
    Includes at least a third eccentric junction member
    The third eccentric joining member is
    The upper surface is provided with a joining surface to which the upper member is joined, and is joined to the upper end of the lower member.
    The outer shape of the joint surface is
    The road structure according to any one of claims 1 to 14, which is larger than the outer shape of the upper member.
  16. 　前記偏心接合部材は、
    　少なくとも第４偏心接合部材を含み、
    　前記第４偏心接合部材は、
    　前記下方部材に向かって突出している差し込み部材を備え、
    　前記差し込み部材は、
    　前記鋼管杭又は前記鋼管支柱の外形よりも小さく、
    　前記鋼管杭又は前記鋼管支柱の内側面に包囲されて設置され、
    　前記差し込み部材と前記鋼管杭又は前記鋼管支柱との間に形成される隙間は、
    　充填材が充填される、請求項１～１５の何れか１項に記載の道路構造。     The eccentric joining member is
    Including at least the 4th eccentric joining member
    The fourth eccentric joining member is
    The insertion member is provided so as to project toward the lower member.
    The insertion member is
    Smaller than the outer shape of the steel pipe pile or the steel pipe column,
    It is installed surrounded by the inner side surface of the steel pipe pile or the steel pipe column.
    The gap formed between the insertion member and the steel pipe pile or the steel pipe column is
    The road structure according to any one of claims 1 to 15, wherein the filler is filled.
  17. 　前記上端格点鋼管は、
    　上面を構成し前記桁部材に接合される上部プレートと、
    　下面を構成し前記桁部材に接合される下部プレートと、を備え、
    　前記差し込み部材は、
    　前記上部プレートに接合され、前記下部プレートを貫通し下方に突出して配置される、請求項１６に記載の道路構造。     The upper end grade steel pipe is
    An upper plate that constitutes the upper surface and is joined to the girder member,
    A lower plate that constitutes a lower surface and is joined to the girder member is provided.
    The insertion member is
    The road structure according to claim 16, wherein the road structure is joined to the upper plate and is arranged so as to penetrate the lower plate and project downward.
  18. 　前記第１鋼管杭、前記第２鋼管杭、又は前記鋼管支柱に設置される中間格点鋼管と、
    　隣り合う２つの前記中間格点鋼管を連結する梁部材と、をさらに備え、
    　前記偏心接合部材は、
    　少なくとも第５偏心接合部材を含み、
    　前記第１鋼管杭、前記第２鋼管杭、前記鋼管支柱、前記上端格点鋼管、及び前記中間格点鋼管のうち、下方に位置する部材を下方部材とし、前記下方部材の上方に接合される部材を上方部材としたときに、前記下方部材と前記上方部材との接合部は、前記第５偏心接合部材により接合され、
    　前記中間格点鋼管は、
    　前記第５偏心接合部材を備え、
    　前記第５偏心接合部材は、
    　前記上方部材及び前記下方部材に向かって突出している差し込み部材を備え、
    　前記差し込み部材は、
    　前記鋼管杭又は前記鋼管支柱の外形よりも小さく、
    　前記鋼管杭又は前記鋼管支柱の内側面に包囲されて設置され、
    　前記差し込み部材と前記鋼管杭又は前記鋼管支柱との間に形成される隙間は、
    　充填材が充填される、請求項１～１７の何れか１項に記載の道路構造。     An intermediate grade steel pipe installed on the first steel pipe pile, the second steel pipe pile, or the steel pipe column,
    A beam member that connects two adjacent intermediate grade steel pipes is further provided.
    The eccentric joining member is
    Including at least the fifth eccentric joining member
    Of the first steel pipe pile, the second steel pipe pile, the steel pipe strut, the upper end grade steel pipe, and the intermediate grade steel pipe, the lower member is a lower member and is joined above the lower member. When the member is an upper member, the joint portion between the lower member and the upper member is joined by the fifth eccentric joining member.
    The intermediate grade steel pipe is
    The fifth eccentric joining member is provided.
    The fifth eccentric joining member is
    The upper member and the insertion member projecting toward the lower member are provided.
    The insertion member is
    Smaller than the outer shape of the steel pipe pile or the steel pipe column,
    It is installed surrounded by the inner side surface of the steel pipe pile or the steel pipe column.
    The gap formed between the insertion member and the steel pipe pile or the steel pipe column is
    The road structure according to any one of claims 1 to 17, wherein the filler is filled.
  19. 　前記差し込み部材は、
    　円筒形状の鋼管である、請求項１６～１８の何れか１項に記載の道路構造。     The insertion member is
    The road structure according to any one of claims 16 to 18, which is a cylindrical steel pipe.
  20. 　前記差し込み部材は、
    　当該差し込み部材の中心軸に垂直な断面において、板状の部材を直交するように接合して形成されている、請求項１６～１９の何れか１項に記載の道路構造。     The insertion member is
    The road structure according to any one of claims 16 to 19, which is formed by joining plate-shaped members so as to be orthogonal to each other in a cross section perpendicular to the central axis of the insertion member.
  21. 　前記鋼管杭は、
    　中空の筒形状であり前記地盤の中に位置する側の端部の外周に開口された貫通孔を備える、請求項１～２０の何れか１項に記載の道路構造。     The steel pipe pile
    The road structure according to any one of claims 1 to 20, which has a hollow tubular shape and includes a through hole opened on the outer periphery of an end portion located in the ground.
  22. 　道路が延びる第１方向及び前記第１方向に交差する第２方向に並列して地盤に打設される鋼管杭と、
    　前記鋼管杭の上方に接続される鋼管支柱と、
    　前記鋼管杭又は前記鋼管支柱に設置される格点鋼管と、を備え、
    　前記鋼管杭、前記鋼管支柱、及び前記格点鋼管のうち、下方に位置する部材を下方部材とし、前記下方部材の上方に接合される部材を上方部材としたときに、
    　前記下方部材と前記上方部材との接合部は、
    　前記下方部材の中心軸と前記上方部材の中心軸とを偏心させた状態で接合できる偏心接合部材により接合され、
    　前記偏心接合部材は、
    　筒体を備え、
    　前記筒体は、
    　前記鋼管杭又は前記鋼管支柱の外周面を包囲して設置され、
    　前記筒体と前記鋼管杭又は前記鋼管支柱との間に形成される間隙は、
    　充填材が充填される、道路構造の前記偏心接合部材を設置する際に用いる型枠治具であって、
    　前記下方部材の外周面を包囲し前記筒体の下端に接して設置される型枠板と、
    　前記筒体の水平位置を調整し固定する調整ボルトと、
    　前記型枠板及び前記調整ボルトを支持し、前記下方部材に着脱自在に固定されるブラケットと、を備える、型枠治具。     Steel pipe piles placed in the ground in parallel with the first direction in which the road extends and the second direction intersecting the first direction,
    With the steel pipe column connected above the steel pipe pile,
    The steel pipe pile or the graded steel pipe installed on the steel pipe column is provided.
    When the member located below is the lower member and the member joined above the lower member is the upper member among the steel pipe pile, the steel pipe column, and the graded steel pipe.
    The joint between the lower member and the upper member is
    The central axis of the lower member and the central axis of the upper member are joined by an eccentric joining member that can be joined in an eccentric state.
    The eccentric joining member is
    Equipped with a cylinder
    The cylinder is
    It is installed by surrounding the outer peripheral surface of the steel pipe pile or the steel pipe column.
    The gap formed between the cylinder and the steel pipe pile or the steel pipe column is
    A formwork jig used when installing the eccentric joining member of a road structure to which a filler is filled.
    A formwork plate that surrounds the outer peripheral surface of the lower member and is installed in contact with the lower end of the cylinder.
    An adjustment bolt that adjusts and fixes the horizontal position of the cylinder,
    A formwork jig including a bracket that supports the formwork plate and the adjustment bolt and is detachably fixed to the lower member.
  23. 　道路が延びる第１方向及び前記第１方向に交差する第２方向に並列して地盤に打設される鋼管杭と、
    　前記鋼管杭の上方に接続される鋼管支柱と、
    　前記鋼管杭又は前記鋼管支柱に設置される格点鋼管と、を備え、
    　前記鋼管杭、前記鋼管支柱、及び前記格点鋼管のうち、下方に位置する部材を下方部材とし、前記下方部材の上方に接合される部材を上方部材としたときに、
    　前記下方部材と前記上方部材との接合部は、
    　前記下方部材の中心軸と前記上方部材の中心軸とを偏心させた状態で接合できる偏心接合部材により接合される、道路構造の施工方法であって、
    　前記下方部材と前記上方部材を接合する仮接合工程を備え、
    　前記仮接合工程は、
    　前記偏心接合部材が備える筒体を前記下方部材の上端部の外周面を包囲して設置する筒体設置工程と、
    　型枠治具が備える型枠板を前記下方部材の外周面を包囲し前記筒体の下端に接するように設置する型枠設置工程と、
    　調整ボルトにより前記筒体の水平位置を調整し固定する固定工程と、を備える、道路構造の施工方法。     Steel pipe piles placed in the ground in parallel with the first direction in which the road extends and the second direction intersecting the first direction,
    With the steel pipe column connected above the steel pipe pile,
    The steel pipe pile or the graded steel pipe installed on the steel pipe column is provided.
    When the member located below is the lower member and the member joined above the lower member is the upper member among the steel pipe pile, the steel pipe column, and the graded steel pipe.
    The joint between the lower member and the upper member is
    It is a construction method of a road structure in which the central axis of the lower member and the central axis of the upper member are joined by an eccentric joining member that can be joined in an eccentric state.
    A temporary joining step for joining the lower member and the upper member is provided.
    The temporary joining step is
    A tubular body installation step in which the tubular body included in the eccentric joining member is installed by surrounding the outer peripheral surface of the upper end portion of the lower member.
    A mold installation process in which the mold plate provided by the mold jig is installed so as to surround the outer peripheral surface of the lower member and be in contact with the lower end of the cylinder.
    A method for constructing a road structure, comprising a fixing step of adjusting and fixing the horizontal position of the cylinder with an adjusting bolt.
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