JP2004278230A - Method of constructing grade separation of roads, and pier connection structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of constructing a grade separation of roads, which can shorten a construction period, dispenses with securement of a temporary road, ensures transportation during the construction period to drastically alleviate a secondary traffic jam, and can be executed without using temporary supports. <P>SOLUTION: The method is provided for constructing the grade separation at an intersection 14 of the existing roads 10, 12, by elevating a straight lane 16 of one of the roads 10 as a viaduct section. The method is comprised of a step of arranging an assembling yard 20 in the vicinity of a viaduct section construction location, and connecting together a plurality of bridge girders 66 transported by a trailer on a movable multi-axle bogie 64 in the assembling yard 20 and assembling the bridge girders so as to have a predetermined length; a step of transporting the assembled bridge girders 66 having the predetermined length to a predetermined installation location by straight movement of the movable multi-axle bogie 64; a step of bearing the bridge girders 66 having the predetermined length by piers 40 at the predetermined installation location; and a step of returning the movable multi-axle bogie 64 from the predetermined installation location to the assembling yard 20. Then the steps are repeatedly carried out to construct the viaduct section having a predetermined length. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for constructing a road grade crossing and a pier connection structure, and more particularly to a method for constructing a road grade crossing and a pier connecting structure at an intersection of an existing road.
[0002]
[Background Art]
2. Description of the Related Art In recent years, traffic congestion regularly occurs at intersections or railroad crossings in urban areas with heavy traffic.
[0003]
In such a construction of an overpass at an existing road intersection, a steel girder is usually erected after a cast-in-place RC pier foundation construction, and an RC floor slab is constructed thereon.
[0004]
However, such a construction method requires a large occupation area at the time of construction, requires long-term extensive traffic regulation, and secures temporary roads, further congestion during that time, worsens the surrounding environment, and impairs the inhabitants. Will be.
[0005]
For this reason, the bridge superstructure is divided into modules, moved to a predetermined position on site by a moving device also serving as a temporary support, connected and integrated by an emergency connecting device, and the road surface is used as a temporary bridge, By separately connecting the bridge superstructure with permanent construction members separately and replacing the temporary strut with a pier as a permanent strut, the construction period is shortened, early operation is planned, and the impact on the current traffic volume is minimized. A limited proposal has been made (see Patent Document 1).
[0006]
[Patent Document 1]
JP-A-6-272214
[Problems to be solved by the invention]
According to the above proposal, it is possible to shorten the construction period and to minimize the impact on traffic volume.However, it is assumed that traffic will be cut off during the construction period, and temporary roads and secondary congestion will be secured during the construction period. Cannot be eliminated.
[0008]
In addition, since a moving device that also serves as a temporary support is used, it is necessary to remove the temporary support after installing a pier as a permanent support.
[0009]
Further, when the pier is installed, the work space is restricted by the moving device also serving as the temporary support.
[0010]
SUMMARY OF THE INVENTION An object of the present invention is to provide a road structure that can be constructed without using a temporary support while securing traffic during the construction period to greatly reduce secondary congestion while securing a temporary road while presuming a shortened construction period. It is to provide a cross construction method.
[0011]
It is another object of the present invention to provide a pier connection structure capable of adjusting the displacement of a pier pillar and the level of a pier pillar with respect to a pile, and transmitting a load reliably.
[0012]
[Means for Solving the Problems]
In order to achieve the object, a road overpass construction method of the present invention is a road overpass construction method of making a straight lane of one of the roads at an intersection of an existing road into an overpass as an elevated section,
Arranging an assembly yard near the elevated part construction position, a step of assembling to a predetermined length by connecting a plurality of bridge girders transported by a transport vehicle in this assembly yard on a moving multi-axle bogie,
Transporting the assembled bridge girder of a predetermined length to a predetermined installation position by the movable multi-axle carriage,
Causing the bridge girder of the predetermined length to be supported by a pier at the predetermined installation position;
Returning the movable multi-axle truck from the predetermined installation position to the assembly yard;
Is repeated to construct an elevated portion having a predetermined distance.
[0013]
According to the present invention, by disposing the assembly yard on the road ground near the elevated part construction position, the bridge girder is transported from the assembly yard on the side of the road onto the road as compared with the case where the assembly yard is installed on the side of the road. In such a case, since it is possible to secure a traffic lane in a state where it is not necessary to block traffic or perform traffic regulation, it is possible to greatly reduce the occurrence of secondary congestion.
[0014]
Also, by connecting a plurality of bridge girders transported by a transport vehicle in an assembly yard on a moving multi-axle bogie and assembling them to a predetermined length, compared to a case where a bridge girder assembled outside the road at one end is transported on the road, Since a plurality of bridge girders received above can be connected as they are on the road, the construction period can be shortened.
[0015]
Furthermore, by transporting the bridge girder of a predetermined length assembled in the assembly yard to the predetermined installation position by the movable multi-axle bogie, it is possible to reliably transport the bridge girder to the predetermined installation position without affecting other lanes. It is possible to further reduce the occurrence of secondary congestion.
[0016]
If a bridge girder of a predetermined length is supported on the pier at the installation position, the bridge girder can be supported only by the permanent pier without using a temporary support post, eliminating the work such as removing the temporary support post, This can contribute to shortening, and there is no restriction on the work space for installing the pier.
[0017]
In the present invention, the bridge girder can be conveyed in a state where both sides or one side in the width direction of the elevated portion are folded, expanded after being supported by the bridge pier, and widened.
[0018]
With such a configuration, by reducing the construction occupying width of the elevated portion, it is possible to secure a right-turn lane in the daytime during construction, and to further suppress secondary congestion.
[0019]
In the present invention, the transfer of the bridge girder from the transfer vehicle to the movable multi-axle carriage can be performed by a gate-type loading facility that straddles the transfer vehicle and the movable multi-axle carriage.
[0020]
By adopting such a configuration, the bridge girder can be moved from the transfer vehicle to the moving multi-axle bogie without turning by a crane or the like, and the turning area becomes unnecessary, so that the occupying area at the time of construction is reduced. This eliminates the need for securing temporary roads and traffic regulation, and further suppresses secondary congestion.
[0021]
In the present invention, the pier includes a pier and a stake, and the pier is connected to the spar after being connected to the spar at a predetermined installation position of the spar.
[0022]
With this configuration, the bridge girder can be transported to the installation position before the bridge pier is erected on the pile, and after the bridge pier is connected to the bridge girder at the installation position, the bridge girder is connected to the pile. Transport to a predetermined installation position and support of a bridge girder by a bridge pier can be reliably performed.
[0023]
In the present invention, the pier comprises a pier and a stake, and the pier is connected to the stake at a predetermined installation position of the spar and then to the spar.
[0024]
By adopting such a configuration, after the bridge girder is transported to the predetermined installation position, the bridge pier is connected to the pile, and then connected to the bridge girder, so that the bridge girder is transported to the predetermined installation position and supported by the bridge pier. Etc. can be performed reliably.
[0025]
In the present invention, the pier comprises a pier post and a pile, and the pier can be attached to the bridge girder in advance and transported to a predetermined installation position.
[0026]
By adopting such a configuration, the bridge piers are transported to the predetermined installation position in a state where they are attached to the bridge girder in advance, and then the bridge piers are connected to the piles, so that the bridge girder is securely connected to the pier at the predetermined installation position. Can be supported.
[0027]
In these cases, the connection between the pile and the bridge pier is made by connecting a lower plate attached to the pile head and an upper plate on the lower plate by adjusting the displacement of the pile center and the level of the pile head. This can be done by connecting the pier columns on the plate.
[0028]
By adopting such a configuration, it is possible to build the pier pillars before the foundation part construction, and simultaneously perform the upper and lower works of the preparatory erection of the bridge girder on the moving multi-axle bogie, contributing to shortening the construction period. it can.
[0029]
In this case, the lower plate and the upper plate may be provided with a load transmission adjusting member capable of adjusting the displacement of the pile center and the level of the pile head and transmitting a load at opposing positions. it can.
[0030]
With this configuration, the load transmission adjusting member can adjust the displacement of the pile center and the level of the pile head, and can connect the pile and the pier column so that the load can be transmitted reliably. .
[0031]
The pier connection structure of the present invention is a pier connection structure for connecting a pile and a pier pillar,
A lower plate attached to the pile head, an upper plate attached on the lower plate, and a shift of the pile center and a level of the pile head which are attached to opposing surfaces of the lower plate and the upper plate, respectively, and Having a lower load transmission adjustment member and an upper load transmission adjustment member capable of transmitting a load,
The shift of the pile center and the level of the pile head are adjusted by the lower load transmission adjusting member and the upper load transmission adjusting member, and the pile and the pier are connected via the lower plate and the upper plate.
[0032]
ADVANTAGE OF THE INVENTION According to this invention, the gap of a pile center and the level of a pile head are adjusted by a lower load transmission adjustment member and an upper load transmission adjustment member, a lower plate and an upper plate are connected, and this lower plate and an upper plate are connected. By connecting the pile and the pier column, the upper load can be smoothly transmitted to the pile, and the time required to start the pier column can be shortened by omitting the process of starting the pier column. it can.
[0033]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0034]
FIG. 1 to FIG. 13 are views showing a method of constructing a road grade separation according to an embodiment of the present invention.
[0035]
As shown in FIG. 1, this road grade crossing construction method is to make a straight lane 16 of one of the roads 10 at an intersection 14 of existing roads 10 and 12 as an elevated part so as to make a grade separation.
[0036]
This one road 10 is a four-lane road having a median strip 18 at the center with two lanes on each side, and the two lanes of the straight lane 16 on the central side are formed as an elevated part as an elevated section. I have.
[0037]
The assembling yard 20 is arranged on the straight lane 16 including the median strip 18 near the elevated part construction position.
[0038]
The elevated portion has an embankment region 22 at both ends thereof, a bridge girder construction region 24 between the embankment regions 22, and an assembly yard including two straight lanes 16 and a median strip 18 in the two embankment regions 22. In the bridge girder construction area 24, a construction yard 26 corresponding to the width of the median strip 18 is arranged.
[0039]
Therefore, at the intersection 14, two lanes are secured on each side, and not only the left-turn lane 28 but also the right-turn lane 30 are secured so that traffic is not cut off or traffic is restricted, except for straight-ahead lanes. By using the lane as a traffic lane as it is, it is possible to greatly reduce the occurrence of secondary congestion.
[0040]
Next, as shown in FIGS. 2A and 2B, the foundation work is performed in the construction yard 26 and the upper ground is assembled in the assembly yard 20.
[0041]
For the foundation work, for example, the PHC pile 34 is driven into a predetermined location around the center span 32, installation of the temporary retaining soil 36, excavation / temporary lining, and the like are performed.
[0042]
On the right side of the center span 32, a pier column 38 is erected on the PHC pile 34 to construct a pier 40.
[0043]
As shown in FIG. 12, the construction of the pier 40 is performed as shown in FIG. 12B after the PHC pile 34 is driven, the temporary retaining soil 36 is laid, and excavation and temporary lining are performed as shown in FIG. As described above, the level adjusting jig 42 is attached to the pile head of the central PHC pile 34 to adjust the displacement of the pile center and the level of the pile head, and the pier column 38 is placed on the level adjusting jig 42 or higher. I try to connect.
[0044]
As shown in FIG. 13, the level adjusting jig 42 includes a lower plate 44 attached to a pile head, an upper plate 46 attached to the lower plate 44, and attached to opposing surfaces of the lower plate 44 and the upper plate 46, respectively. It has a lower load transmission adjusting member 48 and an upper load transmission adjusting member 50 capable of adjusting the displacement of the pile center and the level of the pile head and transmitting the load.
[0045]
The lower plate 44 has a mounting hole for the PHC pile 34 (not shown) and a long hole 52 for connection with the upper plate 46.
[0046]
The upper plate 46 has a connection bolt 54 attached to a position corresponding to the long hole 52 of the lower plate 44, and has an elongated hole 56 for connecting the bridge pier 38.
[0047]
The lower load transmission adjusting member 48 is arranged in a cross shape and has a groove 58 that opens upward, and is in a state of receiving the upper load transmission adjusting member 50.
[0048]
The upper load transmission adjusting member 50 is formed in a cross shape corresponding to the lower load transmission adjusting member 48, and has a state in which the lower load transmission adjusting member 48 is inserted into the groove 58 of the lower load transmission adjusting member 48.
[0049]
Then, the lower plate 44 is fixed to the top end of the PHC pile 34 with bolts 61 using the bolt holes 59 at the top end of the PHC pile 34.
[0050]
Next, reference blacking is performed on the lower plate 44, and the positions in the X and Y axis directions are aligned, and the lower load transmission adjusting member 48 is welded and fixed to the lower plate 44.
[0051]
Next, the upper plate 46 and the upper load transmission adjusting member 50 are welded and fixed in advance, and the insertion protrusion 60 of the upper load transmission adjusting member 50 is inserted by using the lower load transmission adjusting member 48 as a guide. And the lower plate 44 are attached by connecting bolts 54.
[0052]
The upper plate 46 and the lower plate 44 are attached by attaching the upper plate 46 to the lower end of the bridge pier 38 in a state where the upper load transmission adjusting member 50 is attached to the upper plate 46 in advance, and attaching the upper plate 46 to the top end of the PHC pile 34. The pier pillar 38 may be lowered with the lower plate 44 fixed, and the lower load transmission adjusting member 48 may be attached to the lower plate 44 to fix the upper load transmission adjusting member 50.
[0053]
In this case, one of the members forming the groove 58 is attached to the lower plate 44 first, the upper load transmission adjusting member 50 is lowered by using this member as a guide, and then the other member is attached to the lower plate 44. Is also good.
[0054]
Next, by adjusting the connection bolt 54, the height (Z) and the inclination (θX, θY) are adjusted to fix the upper plate 46.
[0055]
Next, the engaged portions of the lower load transmission adjusting member 48 and the upper load transmission adjusting member 50 are fixed by welding or by injecting unsaturated polyester resin or the like.
[0056]
Next, the pier pillar 38 is erected and fixed on the upper plate 46.
[0057]
The rotation error in the θZ direction is absorbed by the long holes 56 of the upper plate 46.
[0058]
As a result, the pier pillar 38 is erected and fixed on the PHC pile 34, and the pier 40 is constructed.
[0059]
In this way, by connecting the pier 40 using the level adjusting jig 42, the displacement of the pile center and the level of the pile head are adjusted, and the lower load transmission adjusting member 48 and the upper load transmission The load can be reliably transmitted to the PHC pile 34.
[0060]
As shown in FIG. 3, in the upper yard structure, a plurality of bridge girders 66 transported by a trailer 62 as a transport vehicle are connected on a movable multi-axle truck 64 in the assembly yard 20 and assembled to a predetermined length. .
[0061]
The transport of the bridge girder 66 from the trailer 62 to the moving multi-axle truck 64 is performed by a gate-type loading facility 68 that straddles the trailer 62 and the moving multi-axle truck 64, and the trailer is not turned by a crane or the like. Since it can be moved from 62 to the moving multi-axle bogie 64, and no turning area is required, the occupation area during construction is reduced, making it unnecessary to secure temporary roads and restrict traffic, and further suppressing secondary congestion. can do.
[0062]
Also, as shown in FIG. 7, the bridge girder 66 is configured to be conveyed in a state in which both widthwise side portions 69 of the elevated portion are folded, thereby reducing the construction exclusive width of the elevated portion, The right turn lane in the daytime during construction can be secured, and the secondary traffic congestion can be further suppressed.
[0063]
As shown in FIG. 4, the bridge girder 66 having a predetermined length assembled on the movable multi-axle bogie 64 is moved to the central span 32 by linear movement of the movable multi-axle bogie 64, and the bridge piers are moved and installed. Is moved to a position corresponding to the PHC pile 34 on the left side of the center span 32 while the pier column 38 is supported vertically by the moving multi-axle bogie 70.
[0064]
In the foundation excavation part, a lining plate is installed so that the movable multi-axial carriage 64 can travel, and after the movement is completed, the lining plate of the upright portion is removed.
[0065]
Next, as shown in FIGS. 5A and 5B, the bridge girder 66 is supported by the right pier 40 and the left pier 40 at the position corresponding to the center span 32.
[0066]
In this case, as shown in FIGS. 6 and 7, the lifting device 72 of the movable multi-axle bogie 64 is raised, and the bridge girder 66 is located above the upper ends of the right pier column 38 and the left pier column 38. Then, the upper end of the left pier post 38 is fixed to the lower surface of the bridge girder 66 by welding or bolting.
[0067]
In this case, a level adjusting jig 42 is attached to the upper end of the PHC pile 34 on the left side to adjust the center of the PHC pile 34 and the level of the pile head.
[0068]
Then, in this state, as shown in FIG. 8, the lifting device 72 of the movable multi-axle bogie 64 is lowered to bring the lower surface of the bridge girder 66 into contact with the upper end of the right pier column 38, and the lower end of the left pier column 38 Is brought into contact with the level adjusting jig 42 to weld and fix the upper end of the right pier column 38 to the bridge girder 66 and to connect and fix the lower end of the left pier column 38 to the level adjusting jig 42.
[0069]
Thereafter, the movable multi-axle bogie 64 is returned from the position of the center span 32 to the assembly yard 20, and the connecting and assembling work of the bridge girder 66 on the next movable multi-axle bogie 64 is performed. Are sequentially carried out, and a superstructure on the left side from the central span 32 is constructed.
[0070]
When the movable multi-axle bogie 64 is returned to the assembly yard 20, the vehicle is once moved to a horizontal lane, returned to the construction yard 26 at a position beyond the left pier 40, and moved to the assembly yard 20.
[0071]
This movement should be performed at night with traffic regulation.
[0072]
Further, the left end of the bridge girder 66 at the side span portion 74 is attached to the right end of the left bridge girder 66.
[0073]
In this case, as shown in FIG. 12 (D), foundation concrete is cast on the piers 40 on which the superstructure has already been erected, so that the footing portions 76 are formed, and the side portions 69 of the bridge girder are developed and fixed. To increase the width.
[0074]
The deployment work of the both sides 69 of the bridge girder 66 may be performed at night with traffic regulation.
[0075]
Then, after the left upper erection work is completed, the left assembly yard 20 is dismantled, and the movable multi-axle bogies 64 and 70 are moved to the right assembly yard 20.
[0076]
Next, as shown in FIG. 10, the right side span span erection work is performed in the same procedure as the left side construction, and after the left pier foundation concrete is cast, an H steel pile 78 is driven into the embankment area 22 to form the embankment. Do.
[0077]
Next, as shown in FIG. 11, after placing the right pier foundation concrete, an H steel pile 78 is placed in the right embankment area 22 in the same manner as the left side, and embankment formation is performed. Backfilling is performed as shown in FIG.
[0078]
If the superstructure finishing work is performed in parallel with the above work and the existing road restoration work is performed, the elevated section 80 will be constructed.
[0079]
FIGS. 14A and 14B are diagrams showing a modification of the pier connection structure.
[0080]
The bridge pier 40 uses a cast-in-place pile 82, and the upper part of the cast-in-place pile 82 to which the pier column 38 is attached is a steel pipe concrete pile 84. The lower plate 44 is fixed by welding.
[0081]
The other configuration of the level adjusting jig 42 is the same as that of the above-described embodiment, and the description is omitted.
[0082]
Further, in this embodiment, when the footing portion 76 is constructed by casting the foundation concrete, the foundation concrete is cast in a state where the reinforcing bar 86 is exposed by removing the upper part of the surrounding cast-in-place pile 82. Is being done.
[0083]
FIG. 15 is a view showing still another embodiment of the pier connection structure.
[0084]
The bridge pier 40 uses a PC well 88. Four brackets 90 are attached to the upper inner surface of the PC well 88, and a cross beam 92 is fixed to the bracket 90 with bolts. The lower plate 44 is welded to the cross beam 92 in advance. I try to keep it.
[0085]
The cross beam 92 is reinforced as required according to the load at the time of construction. After the bridge pier 38 is connected and fixed via the level adjustment jig 42, the cross beam 92 is halved at the upper end of the PC well 88. A block 93 is provided, the back of the column base is reinforced, and concrete is poured into the PC well 88 to be integrated.
[0086]
The configuration of the level adjusting jig 42 is the same as that of the above-described embodiment, and the description is omitted.
[0087]
FIG. 16 is a diagram showing a pier according to another embodiment of the present invention.
[0088]
In this pier 40, a pile head connecting jig 94 is attached to the pile heads of a plurality of, for example, five piles 96, and these pile head connecting jigs 94 are fixed with bolts. Is fixed to the lower plate 44, the bridge pier 38 is connected and fixed via the level adjusting jig 42, and the footing portion 76 is constructed by casting foundation concrete.
[0089]
The configuration of the level adjusting jig 42 is the same as that of the above-described embodiment, and the description is omitted.
[0090]
The present invention is not limited to the above embodiments, and can be modified into various forms within the scope of the present invention.
[0091]
For example, in the above-described embodiment, the state in which the pier is connected to the bridge at the predetermined installation position of the bridge girder and then connected to the pile has been described. However, the present invention is not limited to this example. After connecting to the pile at the position, it may be connected to the bridge girder, or it may be transported to the predetermined installation position with the pier post attached to the bridge girder in advance, in short, the bridge girder is It is sufficient that the bridge piers do not hinder the transfer movement when transporting to the installation position.
[0092]
Further, in the above embodiment, the bridge girder is in a state where both sides in the width direction of the elevated portion are folded. However, if there is a sufficient road width, both sides in the width direction of the bridge girder are necessarily folded. It is also possible to use it in a state where it protrudes to the side without being in a state.
[Brief description of the drawings]
FIG. 1 is a plan view showing a state of a preparatory work of a road grade separation construction method according to an embodiment of the present invention.
2 (1) is a plan view showing a state in which foundation work is performed from the state of FIG. 1, and FIG. 2 (2) is a longitudinal sectional view thereof.
FIG. 3 is a side view showing a state of an upper construction ground set in the assembly yard of FIG. 2;
FIG. 4 is a side view showing a state in which a bridge girder and a bridge pier are transported from the state of FIG. 3;
5 (1) is a plan view showing a state of erection of a center span from the state of FIG. 2, and FIG. 5 (2) is a longitudinal sectional view thereof.
FIG. 6 is a side view showing the state of the center span erection work shown in FIG. 5;
FIG. 7 is an enlarged front view showing a state in which a bridge girder is lifted up by a moving multi-axle truck.
8 is a side view showing a state in which the bridge girder is supported by left and right piers from the state of FIG.
9 (1) is a plan view showing a state of erection work on the left side span from the state of FIG. 5, and FIG. 9 (2) is a longitudinal sectional view thereof.
10 (1) is a plan view showing a state in which the right span span erection work is performed from the state of FIG. 9 and a left embankment area is formed, and (2) is a longitudinal sectional view thereof.
11 (1) is a plan view showing a state in which finishing work is performed from the state of FIG. 10, and (2) is a longitudinal sectional view thereof.
FIG. 12 is a cross-sectional view showing a bridge pier construction process according to the present embodiment.
FIG. 13 is a perspective view showing a pier connection step of connecting a PHC pile and a pier column via a level adjusting jig.
FIG. 14 (1) is a sectional view showing a pier connection structure using a cast-in-place pile according to another embodiment of the present invention, and (2) shows a relationship between the cast-in-place pile and a level adjusting jig. It is a perspective view.
FIG. 15 is a sectional view showing a pier connection structure using a PC well according to still another embodiment of the present invention, and FIG. 15B is a sectional view showing a connection state between the PC well and a level adjusting jig. FIG.
FIG. 16 is a perspective view showing a pier connection structure in a state where piles are connected using a pile head connection jig according to still another embodiment of the present invention.
[Explanation of symbols]
10, 12 Road 14 Intersection 16 Straight lane 20 Assembly yard 24 Bridge girder construction area 26 Construction yard 32 Central span 34 PHC pile 38 Pier post 40 Pier 42 Level adjustment jig 44 Lower plate 46 Upper plate 48 Lower load transmission adjustment member Reference Signs List 50 Upper load transmission adjusting member 58 Groove portion 60 Inserting convex portion 62 Trailer 64, 70 Moving multi-axle carriage 66 Bridge girder 68 Gate type loading equipment 69 Both sides of bridge girder 72 Lifting device 74 Side span portion 78 H steel pile 80 Elevation portion 82 Cast-in-place pile 88 PC well 96 pile

Claims (9)

A road grade crossing construction method in which one of the roads at an intersection of an existing road is made into a grade separation as an elevated part,
Arranging an assembly yard near the elevated part construction position, a step of assembling to a predetermined length by connecting a plurality of bridge girders transported by a transport vehicle in this assembly yard on a moving multi-axle bogie,
Transporting the assembled bridge girder of a predetermined length to a predetermined installation position by the movable multi-axle carriage,
Causing the bridge girder of the predetermined length to be supported by a pier at the predetermined installation position;
Returning the movable multi-axle truck from the predetermined installation position to the assembly yard;
A road elevated intersection construction method characterized by constructing an elevated portion of a predetermined distance by repeating the above. In claim 1,
The method according to claim 1, wherein the bridge girder is transported in a state where both sides or one side in the width direction of the elevated portion are folded, expanded after being supported by the bridge pier, and widened. In claim 1 or 2,
A method of performing a road grade crossing construction, wherein the transfer of the bridge girder from the transfer vehicle to the moving multi-axle truck is performed by a gate-type loading facility that straddles the transfer vehicle and the mobile multi-axle truck. In any one of claims 1 to 3,
The method according to claim 1, wherein the pier comprises a pier and a stake, and the pier is connected to the spar at a predetermined installation position of the spar and then connected to the stake. In any one of claims 1 to 3,
The method according to claim 1, wherein the pier comprises a pier and a stake, and the pier is connected to the stake at a predetermined installation position of the spar and then connected to the spar. In any one of claims 1 to 3,
The method according to claim 1, wherein the pier comprises a pier and a pile, and the pier is attached to the bridge girder in advance and transported to a predetermined installation position. In any one of claims 4 to 6,
The connection between the pile and the pier column is performed by connecting a lower plate attached to a pile head, an upper plate on the lower plate by adjusting a shift of a pile center and a level of the pile head, and connecting a pier on the upper plate. A road crossing construction method, which is performed by connecting pillars. In claim 7,
A road, wherein the lower plate and the upper plate are provided with load transmission adjusting members capable of adjusting a shift of a pile center and a level of a pile head and transmitting a load at opposing positions, respectively. Overpass construction method. In a pier connection structure that connects a pile and a pier column,
A lower plate attached to the pile head, an upper plate attached on the lower plate, and a shift of the pile center and a level of the pile head which are attached to opposing surfaces of the lower plate and the upper plate, respectively, and Having a lower load transmission adjustment member and an upper load transmission adjustment member capable of transmitting a load,
A pier connection structure, wherein the lower load transmission adjusting member and the upper load transmission adjusting member adjust the displacement of the pile center and the level of the pile head, and connect the pile and the pier pillar via the lower plate and the upper plate. .

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