JP4121079B2 - Grade point structure of floor slab and connecting material in bridge - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a slab part structure of a floor slab and a connecting member in a truss type bridge of an upper suspension type slab bridge applicable to a road bridge among suspension floor slab bridges, more specifically, The present invention relates to a structure capable of three-dimensional adjustment of rotation and vertical displacement.
[0002]
[Prior art]
In general, when a suspended floor slab bridge is applied to a road bridge, the upper suspension type floor slab bridges 1 and 1a such as FIGS. 11-323841 and JP-A-11-229320) are used.
[0003]
Referring to FIG. 8, the upper suspension type slab bridge 1 will be described. Between the two abutments (strad) 3 constructed on the ground 2, an upper floor slab block 4 made of a precast concrete plate is installed using various construction methods. The upper floor slab 5 is configured by filling the joint portion with a time-curable material such as mortar. In addition, a suspended floor slab block 6 made of a precast concrete plate is installed between two abutments 3 at a lower portion of the upper floor slab block 4, and a temporally curable material such as mortar is filled in the joint portion. Version 7 is configured. Each abutment 3 is fixed to the ground 2 by a plurality of ground anchors 9.
[0004]
Between the upper floor slab block 4 and the suspended floor slab block 6, along the bridge axis direction and along the both sides of the upper and lower floor slab blocks 4, 6 in the direction perpendicular to the bridge axis, as shown in FIG. The diagonal member (truss girder) 8 shown in the figure is disposed, the upper end of the diagonal member 8 is connected to the upper floor slab 5 through the upper grade part 10, and the lower end of the diagonal member 8 has the lower grade part 12. And is coupled to the suspended floor slab 7 via The diagonal member 8 is composed of a frame material such as a steel pipe.
[0005]
Further, in the upper suspension type slab bridge 1 of FIG. 9, a vertical member (columnar connecting material) 13 such as a steel pipe is used instead of the diagonal member 8 in the upper suspension type slab bridge 1 of FIG. 8. The vertical members 13 are disposed along both sides of the upper floor slab 5 and the suspended floor slab 7 in the direction perpendicular to the bridge axis and at a predetermined interval in the bridge axis direction. The upper floor slab 5 and the suspended floor slab 7 are connected to each other via the rating part 10 and the lower rating part 12, respectively.
[0006]
The upper floor slab block 4 and the suspended floor slab block 6 are usually made of precast concrete board. The precast board floor slab blocks 4 and 6 manufactured at the factory are transported to the construction site, and two abutments 3, 3 are used. while being installed between, for difficulty, for its rational erection process for 11-323841, etc. JP opening 2 000-54319 it is proposed in this erection work.
[0007]
8 to 10, the primary cable 14 and the secondary cable 15 are used to construct the upper and lower floor slab blocks 4 and 6 between the abutments 3 and 3. The primary cable 14 functions as an erection cable. The secondary cable 15 is for introducing a prestress into the floor slab blocks 4 and 6 to firmly connect the blocks. FIG. 10 shows an example of an external cable system, and primary cables 14 and secondary cables 15 are alternately arranged via saddles 6 a provided on the suspended floor block 6. Both ends of the primary cable 14 and the secondary cable 15 are fixed to the abutment 3 via fixing brackets (not shown).
[0008]
The suspended floor slab block 6 is slid and moved to a predetermined position of a primary cable 14 functioning as an erection cable by a suspension erection method or the like, and then installed at a predetermined position, and then an oblique member 8 (or vertical member 13) made of a steel pipe. Are sequentially arranged so as to straddle the adjacent blocks 6 on the bridge axis direction central portion side, and each block 6 adjacent to each other in an upright state on both sides in the bridge axis perpendicular direction at both ends in the bridge axis direction of each block 6 6 is fixed by a bolt or the like (not shown).
[0009]
Further, in order to construct the upper floor block 4, the upper floor block 4 is arranged over the upper ends of the diagonal members 8 (or the vertical members 13) adjacent to each other in the bridge axis direction. It is fixed to the material 8 (or the vertical material 13).
[0010]
The suspended floor slab 7 and the upper floor slab are continuously filled with joint mortar between the suspended floor slab blocks 6 and between the upper floor slab blocks 4 (and between the bridge body end block 18 and each of the blocks 6 and 4). 5
[0011]
Further, a plurality of secondary cables 15 (15a) are inserted through one bridge body end block 18 and are inserted through the suspended floor slab 7 in a direction perpendicular to the bridge axis and in the bridge axis direction. The bridge body end block 18 is inserted and fixed. Similarly, a plurality of secondary cables 15 (15b) are spaced from one bridge body end block 18 in the direction perpendicular to the bridge axis and inserted through the upper floor slab 5 in the bridge axis direction, and the other bridge body end is inserted. It is inserted and fixed to the part block 18.
[0012]
Then, the upper and lower secondary cables 15 (15a, 15b) are tensioned to fix the both ends of each secondary cable 15 to the bridge body end block 18 via the fixing bracket. In order to facilitate dismantling and removal of the bridge, the bridge body end block 18 is an end-separated upper road type suspended floor slab bridge that is supported separately from the abutment 3, but this point is not the subject of the present invention. Therefore, detailed description is omitted. In addition to the FIG. 8 to FIG. 10, there are cases where the secondary cable for introducing prestress is not used in the conventional erection method, and the upper erection cable for the upper floor slab and the lower erection cable for the suspended floor slab. Both may be used.
[0013]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-323841 [Patent Document 2]
JP 11-229320 A [Patent Document 3]
JP 2000-54319 A
[Problems to be solved by the invention]
In the upper-floor type suspension floor slab bridge, it is necessary to connect the upper floor slab and the suspension floor slab with a connecting material such as a steel pipe or other diagonal material or a support through a grading part. In order to build a structure, it is necessary to adjust the mounting position and angle of the diagonal materials (and vertical materials) with respect to the upper and lower floor slabs. In that case, the vertical direction, horizontal method and rotation of the diagonal materials It is necessary to adjust the direction. After adjusting the position of the diagonal member in this way, it is necessary to fix the displacement of the diagonal member in three directions, up and down, front and rear, left and right. However, when the error becomes large, if it is difficult to fix and it is forcibly fixed, there is a problem that the load resistance of the member itself is lowered due to the influence of residual stress and the like.
[0015]
The present invention has been proposed in view of the above-described problems, and has a structure in which the diagonal members in the truss type bridge of the upper-floor type suspended floor slab bridge can be adjusted. In particular, an object of the present invention is to eliminate the construction error and the construction complexity by fixing the deformation in three directions by adopting a structure capable of adjusting the rotation and vertical displacement of the diagonal member.
[0016]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is configured as follows.
[0017]
The first invention is a truss type in which an upper floor slab and a suspended floor slab constructed via an erection cable spanned between abutments are connected by connecting materials such as diagonal members and vertical members via upper and lower grade points. In such a bridge, the grading portion is constituted by a grading box formed by combining divided grading members separated in the vertical direction, and one divided grading member is a floor slab block constituting a slab The other split rating member is fixed to the existing and new connecting members, and the height / rotation adjusting member provided on the other split rating member is engaged with the one split rating member. By doing so, it is characterized in that it is possible to adjust the spacing and rotation in the height direction of both divided rating members.
[0018]
According to a second invention, in the first invention, the divisional grading member has a gibber hole or a gibber bar, and a time-curing material is filled in the gait box so as to pass through the gibber hole or the gibber bar. In this case, the divided rating member is integrated.
[0019]
According to a third aspect of the present invention, in one of the graded box members according to the first or second aspect of the present invention, one split grading member is provided with a plate having a gibber line or a gibber hole, and the gibber line is formed in a recess formed in a floor slab. Or the plate which has a bevel hole is inserted, and the grading box which attached the said diagonal material and the floor slab are integrated by filling a recessed part with time-hardening materials, such as mortar.
[0020]
According to a fourth aspect of the present invention, the connecting member and the upper floor slab are coupled using the first rating box according to claim 1, 2 or 3, and separated in the bridge axis direction so as to be long in the bridge axis direction. Using the second rating box formed by combining the split rating members configured to be adjustable, one split rating member is adjacent to one block adjacent to the other among the blocks for floor slabs constituting the floor slab Are divided into the other adjacent blocks, the existing connecting member is fixed to the one dividing member, and the new connecting member is fixed to the other dividing member. Thus, the connecting member and the suspended floor slab are combined.
[0021]
According to a fifth aspect, in the fourth aspect , the divided scoring member in the second scoring box has a gibber hole or a gibber line, and the time-curing material is filled in the second scoring box. Thus, the divided grading member is integrated through the above-mentioned gibber holes or gibber muscles.
[0022]
According to a sixth aspect of the present invention, an upper floor slab block and a suspended floor slab block are sequentially erected using an erection cable extending over both abutments, and a mortar is placed at a joint between the floor slab blocks. And a suspended floor slab, and a connecting material such as diagonal material is attached to the upper floor slab via the first rating box according to claim 1 or 2, and the first connecting member is attached to the upper floor slab. This is a three-dimensional adjustment method characterized by finely adjusting the divisional grading members of the grading box in the vertical and rotational directions to temporarily determine them at a predetermined position and then filling the inside with a time-curable material.
[0023]
The seventh invention is the sixth invention, wherein the connecting material is attached to the upper floor slab via the first rating box, and the connecting material is attached to the upper floor slab via the first rating box, A connecting material is attached to the suspended floor slab via the second rating box according to claim 4 or 5,
In the construction of attaching the connecting material to the suspended floor slab, the divided grading members of the second grading box are slid relative to each other and temporarily set to a predetermined position, and then the inside thereof is filled with a time-curable material. To do.
[0024]
[Action]
According to the present invention, the grading portion of the connecting material such as the floor slab and the diagonal member in the bridge of the upper suspension type slab bridge is constituted by a grading box formed by combining the divided grading members, and each grading member is inclined. Rotation of the material, vertical displacement and horizontal displacement can be adjusted, and the grading material is filled in a grading box with a gibber hole and a gibber bar, so that the grading members can be deformed in three directions. By fixing and integrating, it becomes easy to eliminate construction errors and construction complexity when constructing a bridge for an upper suspension type slab bridge.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected and demonstrated to the same element as what was shown in FIGS.
[0026]
FIG. 1 is a schematic view of the present embodiment. In the suspended floor slab bridge 1, a plurality of suspended floor slab blocks 6 erected via a lower erection cable 16 are erected, and a joint 19 of the suspended floor slab block 6 is installed. The suspended floor slab 7 is constructed by being filled with a curable material such as mortar. Also, a plurality of upper floor slab blocks 4 are erected via the upper erection cable 17, and the joint 19 of the upper floor slab block 4 is filled with a time-curable material such as mortar to construct the upper floor slab 5. A plurality of diagonal members 8 are connected between the suspended floor slab 7 and the upper floor slab 5.
[0027]
In the present invention, the suspended floor slab 7 and the diagonal member 8 are coupled via the lower grade box 20, and the upper floor slab 5 and the diagonal member 8 are coupled via the upper grade box 21. Further, the present invention is characterized in that the slant member 8 and the suspended floor slab 7 and the slant member 8 and the upper floor slab 5 can be adjustably fixed via the lower grade box 20 and the upper grade box 21.
[0028]
The configuration of the diagonal member 8, the suspended floor slab 7, and the lower grade box 20 will be described with reference to FIGS. The lower rating box 20 is configured by combining the divided rating members 24 and 25 which are separated in the bridge axis direction and configured to be adjustable in length in the bridge axis direction. Each divided grading member 24, 25 is disposed in a plane U-shaped frame 26, a flange 27 projecting outward from the lower end edge of each U-shaped frame 26, and a plane U-shaped frame 26. And a reinforcing plate 36. The opposite side portions 26a of the left and right planar U-shaped frames 26 are provided so that one of the thickness portions is wide so as to be slidably fitted to each other in the bridge axis direction. A laterally elongated hole 28 extending in the direction of the bridge axis is formed in the both side portions 26a, and both the lateral portions 26a of the left and right U-shaped frames 26 are overlapped, and a temporary fixing bolt 29 is inserted into the laterally elongated hole 28. By fastening the nut 30, the divided rating members 24 and 25 can be temporarily fixed by adjusting the length in the bridge axis direction.
[0029]
As shown in FIG. 3 (b), a plurality of inserts 31 having female screws are embedded in the upper surface of the suspended floor slab block 6. Then, the flange 27 of one divided rating member 24 in the lower rating box 20 is applied to the upper surface of the suspended floor slab block 6 on the existing side (left side in FIG. 3), and the fixing bolt 33 is inserted into the horizontally long hole 32. Fasten to the insert 31. Similarly, the flange 27 of the other split rating member 25 is applied to the upper surface of the suspended floor slab block 6 on the new installation side (right side in FIG. 3), and the fixing bolt 33 is inserted into the laterally long hole 32 and fastened to the insert 31. .
[0030]
As described above, the lower rating box 20 can be fixed by fixing the divided grade members 24 and 25 to the suspension floor block 6 on the existing side and the new side and adjusting the division grade members 24 and 25 to match the suspension floor plate 7. A fixing plate 34 is fixed to the inclined upper surface of each of the divided grading members 24 and 25, and the lower end of the existing diagonal member 8 and the new diagonal member 8 are bolted or welded 35 to each fixed plate 34. It adheres with.
[0031]
Thus, after the diagonal member 8 is fixed to each suspended floor slab block 6 via each divided grade member 24, 25 while adjusting the error according to each suspended floor block 6, the space in the lower grade box 21 is secured. Is filled with a time-curable material such as mortar, and the arrangement position of the diagonal member 8 is fixed by the curing. Further, the reinforcing plate 36 in the U-shaped frame 26 is provided with a dowel hole 37. When the time-curable material wraps around the diver hole 37, the left and right divided grading members 24 are interposed via the time-curable material. , 25 are firmly integrated.
[0032]
Next, the configuration of the diagonal member 8, the upper floor slab 5, and the upper grade box 21 will be described with reference to FIGS. 1 and 4 to 6. The upper grading box 21 is divided into an upper divided grading member 22 and a lower divided grading member which are separated in the vertical direction and can be adjusted in height in the vertical direction and rotatable along a plane perpendicular to the bridge axis direction. The point member 23 is combined. The lower divided grading member 23 is formed as an upper part from both side plates 38, both end plates 39, and both inclined bottom plates 40, and is formed in a box shape with the upper part opened. A reinforcing plate 41 having a dowel hole 37 is disposed inside the box. The upper end of the existing diagonal member 8 constructed in advance is fixed to one of the inclined bottom plates 40 (left side in the drawing) by welding or bolts 35. The upper end of the new diagonal member 8 to be constructed later is fixed to the other (right side in the drawing) of both inclined bottom plates 40 by welding or bolts 35. Further, a bolt mounting piece 42 is fixed to the outer side of the both side plates 38 in the lower divided grading member 23, and a height adjusting bolt 44 is screwed upward into the screw hole 43 from below.
[0033]
The upper divided grading member 22 has a horizontal plate 45 sized to protrude outward from both side plates 38 in the lower divided grading member 23, and a plurality of dowel bars 46 are erected on the upper surface of the horizontal plate 45. At the same time, a reinforcing plate 47 having a dowel hole 37 is fixed to the center of the lower surface. In the upper grade box 21, the horizontal plate 45 is applied to the lower surface of the upper floor block 4 made of a precast plate, and a diver muscle 46 is inserted into a dowel hole 48 formed in the upper floor block 4. By filling 48 with a curable material 49 such as mortar, the upper grade box 21 is fixed to the upper floor block 4.
[0034]
Next, the lower divided grading member 23 in which the upper end of the existing diagonal member 8 is fixed to one inclined bottom plate 40 is disposed below the upper divided grading member 22, and provided on the lower divided grading member 23. By locking the upper end of the height adjustment bolt 44 to the lower surface of the horizontal plate 45 of the upper division score member 22, the height direction of the upper division score member 22 to which the upper floor slab 5 is fixed in the upper grade box 21. The position is determined in the direction of rotation along the plane perpendicular to the bridge axis direction. In this case, fine adjustment of the diagonal member 8 and the block 4 for the upper floor slab is necessary. However, as described above, the upper and lower divided graded members 22 and 23 in the upper graded box 21 are separated from each other. By adjusting the height interval with the height adjusting bolt 44, it can be adjusted easily and reliably. Further, by adjusting the height of the tip of the four adjustment bolts 44 in total, two on each side of the lower divided grading member 23, the bridge axis direction of the upper and lower divided grading members 22, 23 is perpendicular to the bridge axis. The rotation angle along the plane perpendicular to the direction can be adjusted. After adjusting the height and the rotation angle in this way, the upper end of the new diagonal member 8 (right side in the figure) is fixed to the other inclined bottom plate 40.
[0035]
As described above, after adjusting the height interval between the upper divided grading member 22 and the lower divided grading member 23, a time-curable material such as mortar is placed in the space in the box-shaped lower divided grading member 23. By filling, the upper grade box 21 and the lower divided grade member 23 are integrated. At this time, the time-curable material wraps around the dowel hole 37 of the reinforcing plate 41 in the lower divided rating member 23, and the reinforcing plate 47 having the diver hole 48 on the lower surface of the upper divided rating member 22 has a box-like lower side. The upper and lower divided grade members 22 and 23 are firmly integrated with each other through the time-curable material by entering the divided grade member 23 from above and the time-curable material wrapping around each of the diverged holes 37 and 48. The
[0036]
Since a gap is generated as a fine adjustment allowance between the upper and lower divided score members 22, 23, a tape for preventing leakage is stretched in this gap (not shown).
[0037]
The construction process of the present invention will be described.
[0038]
(1) The lower erection cable (lower primary cable) 16 for installing the suspended floor slab 7 is stretched over the abutments on both banks, and the cable ends are fixed so that the upper erection cable upper primary cable) 17 has a predetermined length. (Example of arrangement of the erection cables 16 and 17 is shown in FIG. 7).
[0039]
(2) The suspended floor slab (precast version) 7 is placed on the lower erection cable 16 and sent out toward the center of the bridge. In this case, it is also effective to pull the suspended floor slab block 6 from the opposite side with a tow rope separately from the lower erection cable 16.
[0040]
(3) The lower secondary cable (PC steel material) 16a is passed through the suspended floor block 7.
(4) Place mortar on the joint 19 between the blocks 7 for the suspended floor slab. (In the case of an external cable, it is placed first at the same time as the primary cable.)
[0041]
(5) The upper erection cable 17 for installing the upper floor slab 5 is stretched. A rail (not shown) is suspended from the upper erection cable 17, and the upper floor block (precast plate) 4 is similarly sent out toward the center of the bridge using the rail.
(6) The upper floor slab 5 is passed through the upper secondary cable (PC steel material) 17a, and mortar is placed at the joint between the upper floor slab blocks 4.
[0042]
(7) The diagonal member 8 is attached between the upper floor slab 5 and the suspended floor slab 7. In the construction, the length in the bridge axis direction between the divided members 24 and 25 in the lower grade box 20 is determined at a predetermined position, and a temporary fixing bolt 29 is inserted into the horizontally long hole 28 and temporarily fixed. Of the existing diagonal member 8 and the new diagonal member 8 which are inclined to form a pair on one of the inclined bottom plates 40 of the lower divided rating member 23 in the upper rating box 21, The material 8 is already fixed, and the other diagonal member 8 on the new side is bolted to the other inclined bottom plate 40 (it may be welded). This stabilizes the space between the upper grade box 21 and the new diagonal member 8 in the bridge axis direction. In this operation, as shown in FIG. 7, a temporary support member (support) is provided between the new diagonal member 8 and the suspended floor slab 7 so that the new diagonal member 8 does not fall down or move in the direction perpendicular to the bridge axis. Material) is supported by 50. The upper rating box 21 is filled with a time-curable material 49 and cured.
[0043]
(8) In the process of (7), the left and right dividing members 24, 25 of the lower grade box 20 are slid relative to each other along the lower side of the triangle to determine a predetermined position. Since the lower part of 8 is connected to the lower grade box 20 by bolting, the three sides of the triangle are determined, so the adjustment of the diagonal member 8 is completed.
[0044]
(9) Non-shrinking mortar is also placed in the lower rating box 20 and integrated. The lower grading box 20 is divided into left and right planar U-shapes 26, and both side portions 26a of the left and right frames 26 are narrower on one side and wider on the other side so as to slide on each other. Yes. In order to integrate the left and right frames 26, a reinforcing plate 36 having a dowel hole 37 is provided in the box, so that a non-shrink mortar (not shown) is placed in the internal space of the opposite U-shaped frame 26. Thus, the left and right frames 26 are integrated through the dowel hole 37. As the reinforcing plate 36 having the dowel hole 37, a perforated steel plate or the like is preferably used. Since the elongated holes 32 are formed in the flange 27 of the lower rating box 20, the divided rating members 24, 25 of the lower rating box 20 are arranged by arranging the bolt fixing bolts 33 through the elongated holes 32. While adjusting the position, it is fixed to each suspended floor slab block 6 with bolts.
[0045]
In the step (7), after the upper division score member 22 of the upper grade box 21, that is, the horizontal plate 45 is positioned with respect to the lower division grade member 23 and fixed with a time-curable material, It is also possible to install the upper floor slab 5. In addition, the upper grade box 21 and the lower grade box 20 are fixed to the upper floor slab 5 and the lower floor slab 7 and then filled with a curable material such as mortar. Further, the height adjusting bolts 44 provided on the upper divided score member 22 may be a pin structure as a temporary fixing of the horizontal plate (base plate) 45 of the upper divided score member 22.
[0046]
As described above, the present invention is configured by separating each member having a dive hole as an adjustment member for a scoring portion, and by casting and integrating a time-curable material such as concrete or mortar, so The purpose is to eliminate construction errors and construction complexity by fixing the three-way deformation between the diagonal members and vertical members of the suspended floor slab and the members of the upper and lower floor slabs. It is.
[0047]
Although the embodiment and the operation mode of the present invention have been described above, it is possible to implement the above configuration with a design change as appropriate. Further, the present invention is not limited to the diagonal member 8 but can be applied to a structure in which a vertical member is coupled to an upper floor slab or a lower floor slab via a grading portion.
[0048]
【The invention's effect】
According to the present invention, the grading portion of the connecting material such as the floor slab and the diagonal member in the bridge of the upper suspension type slab bridge is constituted by a grading box formed by combining the divided grading members, and each grading member is inclined. Rotation of the material, vertical displacement and horizontal displacement can be adjusted, and the grading material is filled in a grading box with a gibber hole and a gibber bar, so that the grading members can be deformed in three directions. By fixing and integrating, it becomes easy to eliminate construction errors and construction complexity when constructing a bridge for an upper suspension type slab bridge.
[Brief description of the drawings]
FIG. 1 is an overall schematic explanatory diagram according to an embodiment of the present invention.
FIG. 2 is a plan view showing an arrangement relationship of lower grading boxes.
3A is a cross-sectional plan view of a lower rating box, and FIG. 3B is a cross-sectional view taken along line AA in FIG.
4A is a perspective view of an upper divided rating member in an upper rating box, FIG. 4B is a side view of a lower divided rating member, and FIG. 4C is a lower divided rating member. It is a perspective view.
FIG. 5A is a longitudinal front view when the upper and lower divided score member diagrams are attached in the upper rating box, and FIG. 5B is a longitudinal front view after the attachment.
6A is a longitudinal side view of FIG. 5A, and FIG. 6B is a longitudinal side view of FIG. 5B.
FIG. 7 is an enlarged longitudinal sectional side view showing an example of the arrangement of erected cables in an upper suspension type slab bridge for carrying out the present invention.
FIG. 8 is a cross-sectional explanatory view of an end-separated upper-path type suspended floor slab bridge according to a first conventional example.
FIG. 9 is a cross-sectional explanatory view of an end-separated upper-path type suspended floor slab bridge according to a second conventional example.
10 is an enlarged cross-sectional explanatory view of the end-separated upper-path type suspended floor slab bridge shown in FIG. 7 in a direction perpendicular to the bridge axis.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Upper-type suspension floor slab bridge 2 Ground 3 Abutment 4 Upper floor block 5 Upper floor 6 Lower floor block 7 Suspended floor 8 Diagonal material 9 Ground anchor 10 Upper grade part 12 Lower grade part 13 Vertical material 14 1 Next cable (temporary cable)
15 Secondary cable 16 Lower temporary cable 17 Upper temporary cable 18 Bridge end block 19 Joint 20 Lower rating box 21 Upper rating box 22 Upper division rating member 23 Lower division rating member 24 Division rating member 25 Division Rating member 26 U-shaped member 26a Both sides 27 Flange 28 Horizontal hole 29 Temporary fixing bolt 30 Nut 31 Insert 32 Horizontal hole 33 Fixing bolt 34 Fixing plate 35 Welding 36 Reinforcement plate 37 Givel hole 38 Both side plate 39 Both end plate 40 Inclined bottom plate 41 Reinforcement plate 42 Bolt mounting piece 43 Screw hole 44 Height adjustment bolt 45 Horizontal flat plate 46 Dive bar 47 Reinforcement plate 48 Dive hole 49 Time-hardening material 50 Support material

Claims (7)

In the truss type bridge where the upper floor slab and the suspended floor slab constructed via the erected cable spanned between the abutments are connected by connecting materials such as diagonal materials and vertical materials via the upper and lower grade points, The grading part is composed of a grading box formed by combining divided grading members separated in the vertical direction, and one divided grading member is fixed to the floor slab block constituting the slab, and the other split price point member that is fixed to the connecting member of the existing side and new side to engage the height and rotational adjustment member provided on the other divided rated point members to divide rated point members of the one, two half A graded portion structure of a floor slab and a connecting material in a bridge, characterized in that it is possible to adjust the spacing and rotation of the graded member in the height direction. The divided grading member has a gibber hole or a gibble bar, and the divided grading member is integrated through the gibber hole or the diverb bar by filling a grading material in the grading box. The slab structure of the floor slab and the connecting material in the bridge according to claim 1 . 3. A plate having a gibber bar or a gibber hole is provided on one of the divisional scoring members in the scoring box according to claim 1 or 2 , and the plate having the bar or bar is formed in a recess formed in a floor slab. Of the floor slab and the connecting material in the bridge, wherein the stencil box and the floor slab are integrated by filling the concave portion with a time-curable material such as mortar in the recess. Grade point structure. The first rating box according to claim 1, 2, or 3 is used to connect the connecting member and the upper floor slab, and the length is adjustable in the bridge axis direction by being separated in the bridge axis direction. Using the second rating box that combines the split rating members , one split rating member is adjacent to one of the blocks for floor slabs constituting the floor slab, and the other split rating member is The connecting member is fixed to the other adjacent block, the connecting member on the existing side is fixed to the one split rating member, and the connecting member on the new side is fixed to the other split rating member. The slab structure of the floor slab and the connecting material in the bridge, which is characterized by combining the suspension floor slab.   The divisional grading member in the second grading box has a gibber hole or a gibber muscle, and is filled with a time-curable material in the second gait box, via the diverging hole or the gibber muscle. 5. The graded part structure of the floor slab and the connecting material in the bridge according to claim 4, wherein the divided grade members are integrated. The upper floor slab block and the suspended floor slab block are erected sequentially using the erection cable that stretches over the abutments on both banks, and the upper floor slab and the suspended floor slab are constructed by placing mortar at the joint between each floor slab block. The connecting material such as diagonal is attached to the upper floor slab through the first rating box according to claim 1 or 2 ,
When the connecting material is attached to the upper floor slab , the divided grading members of the first grading box are finely adjusted with respect to each other in the vertical and rotational directions and temporarily determined at a predetermined position. A three-dimensional adjustment method of a floor slab and a connecting material in a bridge characterized by filling. The connecting material is attached to the upper floor slab via the first rating box, and the connecting material is attached to the suspended floor slab via the second rating box according to claim 4 or 5,
  In the construction of attaching the connecting material to the suspended floor slab, the divided grading members of the second grading box are slid relative to each other and temporarily set to a predetermined position, and then the inside thereof is filled with a time-curable material. A method for adjusting a three-dimensional point portion of a floor slab and a connecting material in a bridge according to claim 6.

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