JP2019090281A - Installation structure and construction method of the same - Google Patents

Abstract

To provide an installation structure and a construction method of the same, wherein the installation structure can be made of a lighter and more economical material compared to equilateral angle steel, and can be mounted without rattle even on unevenness on a support part such as a lid receiving step part of a side ditch.SOLUTION: The installation structure comprises: a body part 31 having square pipes 30 arranged in parallel at predetermined intervals in a second direction Y, and a receiving frame part 32 whose bottom is higher than the bottom of the body part, wherein the square pipes 30 extends in a first direction X and has both ends installed on a pair of support part, the receiving frame part 32 is composed of a plurality of first frame members 33 and a pair of second frame members 34, the plurality of the first frame members 33 are disposed in a gap between the plurality of the square pipes juxtaposed at predetermined intervals in the second direction Y, and the first frame members 33 extends in the first direction X and are joined to the plurality of the square pipes at a central portion in the first direction X, and the second frame members 34 are disposed at both end portions of the plurality of the square pipes 30 in the first direction X, and the second frame members extend in the second direction Y and are jointed to both end parts of the first frame members.SELECTED DRAWING: Figure 1

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to an erected structure such as a gutter, a floor slab, a lid plate and the like installed on supports such as gutters, drainage grooves, water channels and small bridges, and a construction method thereof.

  As a side ditch structure installed on a water-permeable paved road (general road, expressway, parking lot, park, etc.) which has a drainage function of rainwater, a plurality of equilateral angle steels are held in parallel to hold a gap for water passage 2 There is known a construction in which a water-permeable asphalt pavement is applied to the entire upper surface in a state in which the side ditch lid having a structure connected by a connecting rod of a book is attached to the upper surface opening of the side ditch main body (see, for example, Patent Document 1). .

  In this side gutter lid, the diameter of the connecting rod is made small, etc., and the equilateral angle steels are flexibly connected so that twisting or bending occurs in the connection part, and thereby, both ends of each equal angle angle steel Can be mounted on the lid receiving step so that the gutter can be attached without rattling.

Patent No. 3893436

  Table 1 shows the product weight (load correspondence of 400 mm of groove width and weight (per 1 m)) of the water-permeable lid using the equilateral angle steel described in Patent Document 1 (road bridge written specification). As shown in Table 1, the weight of the product corresponding to a large vehicle increases parabolically in comparison with the weight of a product corresponding to a small vehicle in order to secure the required strength in this water permeable cover.

  Therefore, in the present invention, using a light and economical material as compared to the equilateral angle steel, it is possible to mount the installation structure without rattling even on the uneven surface of the supporting portion such as the lid receiving step of the side groove The purpose is to provide the body and its installation method.

  The erecting structure of the present invention is an erecting structure which is erected on a pair of support portions, and when the direction of bridging is a first direction and the lateral direction orthogonal to the first direction is a second direction, A plurality of square pipes extending in the first direction and having both ends bridged on the pair of support portions are arranged in parallel in the second direction with a plurality of body portions in which the plurality is juxtaposed in the second direction at predetermined intervals. A plurality of first frame members disposed in the gap between the square pipes and extending in the first direction, and connected to the plurality of square pipes at a central portion in the first direction; A pair of second frame members disposed at both ends in the first direction of the square pipe and extending in the second direction, and configured from a pair of second frame members to which both ends of the first frame member are joined It is a receiving frame part and has a receiving frame part in which a bottom face is higher than a bottom face of a main part.

  When the erecting structure of the present invention is erected on a pair of supporting portions, the bottom surface of the receiving frame portion of the erecting structure is located higher than the bottom surface of the main body portion. The bottom of each end is placed on the pair of supports. At this time, since each of the plurality of square pipes is joined to the central portion of the first frame member of the receiving frame, the plurality of square pipes move flexibly in the receiving frame, respectively, to cope with the incompatibility of the pair of supporting portions. Change its attitude. Thus, in the installation structure of the present invention, the main body portion composed of a plurality of square pipes which is lighter and more economical than the equilateral angle steel may be mounted without rattling against the uneven portions of the pair of support portions. The construction structure can be fixed by constructing asphalt concrete (hereinafter, referred to as "ascon") or concrete on this construction structure.

  Here, it is desirable that the first frame member and the plurality of square pipes be joined at one place. As described above, in the erected structure of the present invention, a structure in which each of the plurality of square pipes is joined to the central portion of the first frame member of the receiving frame portion is adopted, whereby adaptation to non-landing of a pair of supporting portions By making the first frame member and the plurality of square pipes be joined at one place, the square pipe can be made to move more flexibly. In addition, since a square pipe is fixed by constructing an ascon or concrete on a construction structure, it is good for the receiving frame part and the square pipe to be made into one junction.

  In addition, the erection structure of the present invention may have a water flow pipe passing from the upper side to the lower side of the main body in a part of the gap between a plurality of square pipes juxtaposed at predetermined intervals in the second direction. it can. Thereby, water can be directly water-flowed from the upper surface of the erection structure through the water flow pipe to the lower side of the erection structure.

(1) According to the erection structure of the present invention, the main body composed of a plurality of square pipes which is lighter and more economical than the equilateral angle steel is mounted without rattling against the non-land of the pair of supporting parts. By installing ascon or concrete on the erection structure, the erection structure can be fixed without rattling against the non-landing of the support portion.

(2) Since the first frame member and the plurality of square pipes are joined at one place, the square pipe moves more flexibly, and the installation structure is more flexibly fitted to the non-landing of the support portion It becomes possible to get the body.

(3) Ascon installed on the erected structure by a structure having a water flow pipe passing from the upper side of the main body to the lower side in a part of the gaps of a plurality of square pipes juxtaposed at predetermined intervals in the second direction Even when the concrete is not water-permeable, or when the water-flowing function is reduced due to clogging of the water-passing ascon, water can be directly flowed from the upper surface of the erection-structure through the water pipe downward to the erection-structure Is possible.

It is sectional drawing which shows the side ditch structure in embodiment of this invention. It is a perspective view of the gutter lid used for the gutter structure of FIG. It is a top view of the gutter lid of FIG. It is a front view of FIG. It is AA sectional drawing of FIG. It is a perspective view around a water flow pipe in the state where the gutter lid was attached to the upper surface opening of a gutter main body. It is a longitudinal cross-sectional view around the water flow pipe of FIG. It is a perspective view which shows a mode that a square pipe is changing the attitude | position corresponding to the inland of a lid receiving step in a receiving frame part. It is the perspective view which saw the side groove after completion from diagonally upward. It is sectional drawing which shows the gutter structure installed in the road shoulder part of a water-permeable pavement.

  1 is a cross-sectional view showing a gutter structure according to an embodiment of the present invention, FIG. 2 is a perspective view of a gutter lid used in the gutter structure of FIG. 1, FIG. 3 is a plan view of the gutter cover of FIG. 3 is a front view, and FIG. 5 is a cross-sectional view taken along the line A-A of FIG.

  The side ditch structure shown in FIG. 1 is one in which the side ditch 2 is installed in the shoulder portion of the pavement 1. In the pavement 1, a non-water-permeable foundation layer 11 made of a non-water-permeable ascon is formed as a foundation layer on the ground 10, and a fine particle size ascon (non-water-permeable ascon) as a surface layer on the non-water-permeable foundation layer 11. A non-water-permeable surface layer 12 is formed. The side groove 2 includes a side groove main body 20 and a side groove cover 3 as a bridging structure attached to the upper surface opening 21 of the side groove main body 20. In addition, a water-permeable pavement 13 is formed on the gutter lid 3 by constructing a water-permeable ascon.

  The gutter main body 20 is manufactured as a concrete secondary product. The gutter main body 20 is surrounded by the bottom portion 22 and the left and right side walls 23 and 24 to form a bowl-shaped drainage path 25 whose inside is formed in a substantially U shape. At the upper end portions of the inner surfaces of both side walls 23 and 24, lid receiving stepped portions 26 and 27 as a pair of support portions on which the side groove lid 3 is installed are formed. In addition, although not shown in figure, the gutter main body 20 is installed on the foundation by a foundation crushed stone layer, a foundation concrete layer, and a foundation mortar layer.

  As shown in FIGS. 2 to 5, the side groove cover 3 has a main body portion 31 in which a plurality of square pipes 30 whose both ends are installed on the lid receiving step portions 26 and 27 are arranged in parallel. And a receiving frame portion 32 formed to surround each other. The plurality of square pipes 30 extend in a direction (left and right direction in FIG. 1; hereinafter, referred to as “first direction”) X bridged over the lid receiving steps 26 and 27 respectively. In addition, in the left part of FIGS. 3-5, illustration of the square pipe 30 is abbreviate | omitted.

  The rectangular pipe 30 has a width A1 in a lateral direction (hereinafter referred to as “second direction”) orthogonal to the first direction X and a height direction orthogonal to the first direction X (hereinafter referred to as “first direction (3 directions).) It is a square steel pipe having a rectangular cross section with a width B1 of Z and a thickness T1 and both ends are opened. In the present embodiment, the one having A1 = 60 mm, B1 = 30 mm, and T1 = 2.3 mm is used. Such square pipes 30 are juxtaposed in the second direction Y at a predetermined interval Y1 (in the present embodiment, Y1 = 22 mm).

  The receiving frame portion 32 includes a plurality of first frame members 33 extending in the first direction X and a pair of second frame members 34 extending in the second direction Y. The first frame member 33 is a flat steel having a width A2 in the second direction Y and a thickness T2. The width A2 of the first frame member 33 in the second direction Y is smaller than the interval Y1 of the square pipe 30, and the first frame member 33 and the square pipe 30 separate the gap Y2 (= (Y1-A2) / 2) from each other. It is arranged. In the present embodiment, one having A2 = 19 mm and T2 = 3.0 mm is used, and a gap of Y2 = 1.5 mm is formed between the square pipe 30 and the first frame member 33. . Such first frame members 33 are respectively disposed in the gaps between the plurality of square pipes 30, and are welded to the square pipe 30 at one central portion in the first direction X (joints 35 (see FIGS. 3 and 5). See in))).

  The second frame members 34 are disposed at both ends of the plurality of square pipes 30 in the first direction X. The second frame member 34 is a flat steel having a width A3 in the third direction Z and a thickness T3. Both ends of each first frame member 33 are joined to the second frame member 34 by welding. Both end surfaces of the square pipe 30 in the first direction X and the second frame member 34 are disposed with a gap Y3 therebetween. That is, the receiving frame portion 32 and the plurality of square pipes 30 are disposed at the portions other than the joint portion of the first frame member 33 and the square pipe 30 by welding, with the gaps Y2 and Y3 separated. In the present embodiment, the one having A3 = 16 mm and T3 = 3.0 mm is used, and the gap Y3 is 2.0 mm.

  The receiving frame portion 32 is disposed at the center of the main body portion 31 (square pipe 30) in the third direction Z, as shown in FIG. 4, and the bottom surface of the receiving frame portion 32 is positioned higher than the bottom surface of the main body portion 31. It is in. Further, the width A3 of the receiving frame portion 32 (second frame member 34) is narrower than the vertical width (= B1-2 × T1) of the opening at both ends of the square pipe 30, and A gap is formed.

  Further, the side groove cover 3 in the present embodiment has a water flow pipe 4 communicating with the main body 31 from the upper side to the lower side in a part of the gap between the plurality of square pipes 30. FIG. 6 is a perspective view of the periphery of the water flow pipe 4 in a state where the gutter lid 3 is attached to the upper surface opening 21 of the gutter main body 20, and FIG. 7 is a longitudinal sectional view of the water pipe 4 of FIG.

  The water flow pipe 4 is a separate body from the gutter lid 3 and is disposed in the gap between the square pipes 30 as shown in FIGS. 6 and 7 to flow water from the upper opening 40 to the lower opening 41 is there. The water flow pipe 4 is a square steel pipe (square pipe) having a rectangular cross section, and the long sides of the upper surface (upper opening 40) and the lower surface (lower opening 41) are obliquely cut and parallel viewed from the second direction Y It has a quadrilateral shape. Further, the end portion 36 of the first frame member 33 of the gap of the square pipe 30 in which the water flow pipe 4 is disposed is bent in accordance with the angle of the water flow pipe 4.

With the water flow pipe 4 in contact with the end portion 36 of the first frame member 33, a part of the lower surface (lower opening 41) is placed on the lid receiving step 26. Further, one side 42 of the short side of the upper surface (upper opening 40) of the water flow pipe 4 is in contact with the lid receiving wall portion 28 of the side groove main body 20. At this time, the length and angle of the water flow pipe 4 are set such that the upper surface (upper opening 40) of the water flow pipe 4 is flush with the upper surface of the side groove main body 20.
The gutter cover 3 and the water flow pipe 4 are plated with zinc or the like.

  When the side groove cover 3 configured as described above is mounted on the lid receiving step portions 26 and 27 of the side groove main body 20, the bottom surface of the receiving frame portion 32 (first frame member 33 and second frame member 34) is the main body portion 31 (square pipe 30). The bottom surface of the upper end portion of the square pipe 30 is placed on the lid receiving steps 26 and 27 because it is higher than the bottom surface of the square pipe 30. At this time, since each square pipe 30 is joined to the first frame member 33 in one place by welding at the central portion in the first direction X, each square pipe 30 moves flexibly in the receiving frame portion 32. , The attitude of the lid receiving step 26 is changed in response to the landslide. FIG. 8 shows that the square pipe 30 changes its posture in the receiving frame portion 32 in response to the landing of the lid receiving step 26.

  Thereafter, the water flow pipe 4 is disposed in the gap of the square pipe 30. In the present embodiment, since the water flow pipe 4 is separated from the gutter cover 3, the flexible movement of the square pipe 30 when the gutter cover 3 is mounted on the lid receiving step portions 26 and 27 of the gutter main body 20. The posture of the square pipe 30 changes with respect to the non-landing of the lid receiving steps 26 and 27, and is stably mounted on the lid receiving steps 26 and 27 without rattling. Moreover, since the water flow pipe 4 is a separate body, there is nothing projecting on the upper and lower surfaces of the side ditch lid 3, and it is possible to stack the side ditch lid 3 and carry and manage it.

  Then, in a state where the gutter lid 3 and the water flow pipe 4 are attached to the upper surface opening 21 of the gutter main body 20, the water-permeable pavement 13 is formed by constructing a water-permeable ascon over the entire upper surface of the gutter cover 3 Thus, the side ditch structure of FIG. 1 is formed. FIG. 9 is a perspective view of the side groove after completion viewed obliquely from above. In this ditch structure, rain water etc. is drained into the drainage channel 25 through the gap of the water-permeable pavement 13 and the gap of the gutter lid 3, but rain water etc. is preferentially given into the drainage channel 25 through the water flow pipe 4 which is easy to flow. Drained. Therefore, the water-permeable pavement 13 is less likely to be clogged, and the life extension can be achieved. Further, in this side ditch structure, even when the water passing function is lowered due to clogging of the water permeable pavement 13, soil and dirt on the water permeable pavement 13 are drained into the drainage channel 25 through the water flow pipe 4. .

  In addition, it is also possible to replace with the water-permeable pavement 13 and to adopt non-water-permeable pavement and concrete pavement by concrete construction.

FIG. 10 shows an example in which the gutter lid 3 is applied to a gutter installed at the shoulder of the drainage pavement.
In the side ditch structure shown in FIG. 10, the side ditch 2A is installed on the shoulder of the drainage pavement 1A. In the drainage pavement road 1A, a non-water-permeable foundation layer 11 made of a non-water-permeable ascon is formed on the ground 10 as a foundation layer, and a water-passing ascon is applied on the non-water-permeable foundation layer 11. Thus, the water-permeable surface layer (water-permeable pavement) 14 as the surface layer is formed.

  Of the side walls 23A and 24A, the side groove main body 20A is formed such that the upper end surface 24A-1 of the pavement side wall 24A is lower than the upper end surface 23A-1 of the other side wall 23A, and the pavement side side wall 24A is It is formed so that end face 24A-1 may be located substantially identical to the boundary of non-water-permeable foundation layer 11 and pavement side water-permeable surface layer 14.

  Also in this case, in the same manner as described above, with the gutter 3 and the water flow pipe 4 attached to the lid receiving steps 26A and 27A of the upper surface opening 21A of the gutter main body 20A, the upper end surface 24A- It is covered with the side groove side water-permeable surface layer (water-permeable pavement) 14A integrally continued to the pavement surface water-permeable surface layer 14 over the entire upper surface of the side groove lid 3 and the upper surface of the side groove-side water-permeable surface layer 14A The water-permeable pavement side groove structure is formed by being formed so as to substantially coincide with the upper end surface 23A-1 of the side wall 23A. In this case, the construction of the pavement road side water-permeable surface layer 14 can be performed simultaneously with the side groove-side water-permeable surface layer 14A.

  In this side ditch structure, rainwater etc. penetrates the pavement surface water-permeable surface layer 14 and the permeation to the underground is prevented by the non-water-permeable foundation layer 11. Therefore, the pavement surface water-permeable surface layer 14 flows in the direction of the road shoulder. It flows in the gutter-side water-permeable surface layer 14A, flows from the gap of the gutter lid 3 into the drainage channel 25 of the gutter main body 20A, and is drained.

  As described above, in the side groove cover 3 in the present embodiment, the main body portion 31 configured of the plurality of square pipes 30 can be mounted without rattling to the lands of the pair of lid receiving step portions 26 and 27 And by constructing the water-permeable pavement 13 and the water-permeable surface layer 14A and the like on the side groove lid 3, the side groove lid 3 is in a posture corresponding to the unevenness of the lid receiving stepped portions 26, 27; It can be fixed in a state in which twisting and bending are maintained.

  In particular, in the side ditch lid 3 in the present embodiment, since the first frame member 33 and the plurality of square pipes 30 are joined at one place, respectively, the square pipe 30 moves more flexibly, and it is possible to It is possible to fix in a more flexible fit. Although bonding may be performed at a plurality of places, the flexibility is lost as the number of bonding points increases.

  Moreover, in the side ditch lid 3 in the present embodiment, when the water-permeable pavement 13 or the like is constructed, the water-permeable pavement 13 or the like has a gap between the receiving portion and the plurality of square pipes, the receiving portion and the lid receiving step 26, 27. It is fixed firmly by entering the gap with.

  Moreover, in the side ditch lid 3 in the present embodiment, the openings of the plurality of square pipes 30 are collectively covered by the pair of (two) second frame members 34, and the productivity is good.

  When the interval Y1 between the square pipes 30 is a normal water flow opening (a gap of about 5 mm), the asphalt mixture slides on the upper surface of the square pipe 30 at the time of pavement rolling, and the quality of pavement can not be ensured. Due to the nature, it does not slip at the time of rolling, and furthermore, the pavement of the gap can develop the required density, and the interval (about 22 mm) at which the water flow pipe 4 can be mounted is made. On the other hand, the gaps Y2 and Y3 between the square pipe 30 and the receiving frame 32 (the first frame member 33 and the second frame member 34) may normally be about 5 mm, but small sized material such as fine grained asphalt composite or crushed stone Considering using it, it is about 1.5 to 2.0 mm. Further, the height position of the first frame member 33 (the position in the third direction Z) is about two thirds lower than the top end of the square pipe 30 so as to ensure the required density of the asphalt mixture.

  The weight (see Table 2) of the gutter 3 using the square pipe 30 according to the embodiment of the present invention and the weight (see Table 1) of the water transmission lid using the conventional equilateral angle steel were compared. The strength of the square pipe is very high compared to the equilateral angle steel, and in the side groove cover 3 according to the embodiment of the present invention, the width A1 = 60 mm in the second direction Y, the width B1 = 30 mm in the third direction Z, and the thickness The square pipe 30 with T1 = 2.3 mm makes it possible to ensure the required strength in all of the small to large vehicles. Therefore, when it comes to large vehicles (T-25 (long-term strength)), it is possible to reduce the weight by 30% or more compared to equilateral angle steels, and it is possible to easily construct by hand. Also cheap.

  The installation structure of the present invention is useful as a ditch, a drainage ditch, a lid, a floor slab, a lid plate and the like installed on a support such as a water channel or a small bridge.

DESCRIPTION OF SYMBOLS 1 pavement road 1A water-permeable pavement road 2, 2A side ditch 3 side ditch lid 4 water flow pipe 10 ground 11 non-water-permeable foundation layer 12 non-water-permeable surface layer 13 water-permeable pavement 14, 14A drainage surface (water-permeable pavement)
20, 20A side groove main body 21, 21A upper surface opening 22 bottom 23, 24, 23A, 24A side wall 25 drainage channel 26, 27, 26A, 27A lid receiving step 28 lid receiving wall 30 square pipe 31 main body 32 receiving frame 33 1st frame material 34 2nd frame material 35 joints 40 upper opening 41 lower opening

Claims (5)

An erecting structure constructed on a pair of support portions,
When a bridging direction is a first direction, and a lateral direction orthogonal to the first direction is a second direction, a square pipe extending in the first direction and having both ends bridged on the pair of supporting portions is A plurality of body portions arranged in parallel at predetermined intervals in the second direction;
A plurality of first frame members disposed in the gap between the plurality of square pipes arranged in parallel at a predetermined interval in the second direction and extending in the first direction, wherein the plurality of first frame members are provided at a central portion in the first direction A plurality of first frame members respectively joined to the square pipe, and a pair of second frame members disposed at both ends of the plurality of square pipes in the first direction and extending in the second direction; (1) A bridged structure comprising a receiving frame portion configured of a pair of second frame members to which both end portions of the frame material are joined, and a bottom surface thereof being at a position higher than the bottom surface of the main body portion.   The installation structure according to claim 1, wherein the first frame member and the plurality of square pipes are joined at one place.   The receiving frame portion and the plurality of square pipes are disposed with a gap in a portion excluding a joint portion between the first frame member and the square pipe, according to claim 1 or 2, Construction structure.   4. The water supply pipe according to claim 1, further comprising: a water flow pipe extending downward from above the main body portion in a part of a gap between the plurality of square pipes juxtaposed at predetermined intervals in the second direction. Construction structure. Mounting the erecting structure according to any one of claims 1 to 4 on a pair of support portions,
A construction method of a construction structure including construction of asphalt concrete or concrete on the construction structure.