CN210134362U

CN210134362U - Bridge overlength cantilever bent cap construction support

Info

Publication number: CN210134362U
Application number: CN201920412645.4U
Authority: CN
Inventors: 王安文; 吴曼
Original assignee: Road and Bridge International Co Ltd
Current assignee: Road and Bridge International Co Ltd
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2020-03-10
Anticipated expiration: 2029-03-28

Abstract

The utility model relates to a bridge overlength cantilever bent cap construction support, including setting up on the pier cushion cap just to and near 4 steel-pipe piles of peripheral 4 arrises of pier, the lower extreme of every steel-pipe pile anchors with the connecting plate pre-buried on the cushion cap, the upper end is installed a sand section of thick bamboo, connect through parallel connection and bracing respectively between two adjacent steel-pipe piles of horizontal direction and consequent bridge direction, parallel connection and bracing are all hugged closely the pier shaft; two bearing trusses are erected on the sand cylinder at the top of the steel pipe pile in the transverse bridge direction, a plurality of distribution beams are erected at the tops of the two bearing trusses in the bridge direction, and a panel is laid at the top of each distribution beam. The utility model is suitable for a bridge bent cap construction that the pier is the square pier for traditional steel pipe support, need not carry out ground processing and structural stability is strong.

Description

Bridge overlength cantilever bent cap construction support

Technical Field

The utility model relates to a bridge bent cap construction, concretely relates to support suitable for construction of overlength cantilever bent cap.

Background

When the urban bridge is designed, in order to increase the traffic capacity under the bridge, a large-span bent cap structure is often adopted, the stress requirement of the upper structure of the bridge can be met, the driving space under the bridge can be enlarged, and the construction cost of the pier stud is greatly reduced.

The pier stud of large-span bent cap adopts the square pier more, and the construction support adopts round pin stick method and staple bolt method all can't realize, adopts the pre-buried cow leg method of pier stud can influence the outer quality of pier shaft, and adopts traditional stand, need handle the ground of bent cap cantilever end below, and is bulky with high costs, and the construction progress is slow, can influence the below road current when strideing across existing road in addition, or influences other cross constructions in below.

Disclosure of Invention

The utility model aims to provide a simple structure, with low costs, construction speed are fast, do not influence the overlength cantilever bent cap construction support of pier stud outward appearance to the characteristics of the overlength cantilever bent cap that adopts the square pier.

The technical scheme of the utility model as follows:

the utility model provides a bridge overlength cantilever bent cap construction support, the pier of bridge is the square pier, its characterized in that: the device comprises 4 steel pipe piles which are arranged on a pier bearing platform and are opposite to and close to 4 ridges on the periphery of the pier, wherein the lower end of each steel pipe pile is anchored with a connecting plate pre-embedded on the bearing platform, a sand cylinder is arranged at the upper end of each steel pipe pile, two adjacent steel pipe piles in the transverse bridge direction and the forward bridge direction are respectively connected through a parallel connection and an inclined strut, and the parallel connection and the inclined strut are tightly attached to a pier body of the pier; two bearing trusses are erected on the sand cylinder at the top of the steel pipe pile in the transverse bridge direction, a plurality of distribution beams are erected at the tops of the two bearing trusses in the bridge direction, and a panel is laid at the top of each distribution beam.

The utility model is suitable for a bridge bent cap construction that the pier is the square pier, utilizes the cushion cap as the basis, and steel-pipe pile stand and antithetical couplet and bracing are hugged closely the pier shaft and are installed, make full use of pier shaft as connecting the dependence, structural stability is strong; the structural steel truss is used as a bearing structure, so that the bearing performance is good, and the full and reliable support can be provided for the overlong cantilever bent cap; the foundation is not required to be processed, the installation speed is high, and the cost is low; the space below the bent cap is saved, and other cross operations are not influenced.

Drawings

FIG. 1 is a schematic structural view of the transverse direction of the present invention;

fig. 2 is a schematic structural diagram of the present invention along the bridge direction.

Detailed Description

As shown in fig. 1 and 2, the utility model provides a bridge overlength cantilever bent cap construction support, the pier 1 of bridge is the square pier, just to setting up 4 steel-pipe piles 3 near the peripheral 4 arrises of pier on the pier cushion cap 2, the lower extreme of every steel-pipe pile 3 is with pre-buried connecting plate 4 anchor on cushion cap 2, the upper end installation sand section of thick bamboo 5, connect through parallel 6 and bracing 7 respectively between two adjacent steel-pipe piles of horizontal direction and consequent bridge direction, parallel 6 and bracing 7 are all hugged closely the pier shaft; two bearing trusses 8 are erected on the sand cylinder 5 at the top of the steel pipe pile in the transverse bridge direction, a plurality of distribution beams 9 are erected at the tops of the two bearing trusses along the bridge direction, and a panel 10 is laid at the top of each distribution beam.

The bearing trusses 8 can adopt sheet trusses, the length of the bearing trusses is larger than that of the cover beam 12, and the two bearing trusses 8 are connected through the connecting rods 11 in the bridge direction in a welding mode.

The utility model discloses according to the structural feature of bridge square pier, bearing structure sets up on the cushion cap and near pier shaft setting, need not to carry out ground processing and stability strong. After the construction of the bent cap is completed, the height of the bearing truss is reduced through the sand discharging cylinder, and the support can be rapidly disassembled.

Claims

1. The utility model provides a bridge overlength cantilever bent cap construction support, the pier of bridge is the square pier, its characterized in that: the device comprises 4 steel pipe piles which are arranged on a pier bearing platform and are opposite to and close to 4 ridges on the periphery of the pier, wherein the lower end of each steel pipe pile is anchored with a connecting plate pre-embedded on the bearing platform, a sand cylinder is arranged at the upper end of each steel pipe pile, two adjacent steel pipe piles in the transverse bridge direction and the forward bridge direction are respectively connected through a parallel connection and an inclined strut, and the parallel connection and the inclined strut are tightly attached to a pier body of the pier; two bearing trusses are erected on the sand cylinder at the top of the steel pipe pile in the transverse bridge direction, a plurality of distribution beams are erected at the tops of the two bearing trusses in the bridge direction, and a panel is laid at the top of each distribution beam.

2. The construction bracket for the overlength cantilever bent cap of the bridge according to claim 1, characterized in that: the bearing trusses are sheet trusses, the length of each sheet truss is larger than that of the cover beam, and the two bearing trusses are connected through connecting rods along the bridge direction.