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Self-adaptive adjusting backing plate device for prefabricated assembly bridge and construction method of self-adaptive adjusting backing plate device

A technology of self-adaptive adjustment and prefabricated assembly, which is applied in the direction of erecting/assembling bridges, bridges, bridge construction, etc., to achieve the effect of durable and beautiful installation, uniform force, and simple installation

Pending Publication Date: 2019-06-21
SHANGHAI MUNICIPAL ENG DESIGN INST GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a self-adaptive adjustment pad device for prefabricated and assembled bridges in order to overcome the above-mentioned defects in the prior art, which can avoid the problem of uneven bearing force caused by construction errors

Method used

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  • Self-adaptive adjusting backing plate device for prefabricated assembly bridge and construction method of self-adaptive adjusting backing plate device
  • Self-adaptive adjusting backing plate device for prefabricated assembly bridge and construction method of self-adaptive adjusting backing plate device

Examples

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Embodiment 1

[0023] A self-adaptive adjustment pad device for a prefabricated bridge, the structure of which is as follows figure 1 As shown, the device comprises a corrugated metal box 1 filled with a polymer steel grit mixture 2 containing a curing agent. The polymer steel grit mixture containing the curing agent is in a flow-plastic state within a set time, and becomes solid when the set time reaches.

[0024] The construction steps of the self-adaptive adjustment pad device are as follows:

[0025] Install the self-adaptive pad assembly over the support with its center coincident with the center of the support.

[0026] During on-site installation, it is sufficient to control the center elevation of the self-adaptive backing plate device to reach the design elevation.

[0027] Place the prefabricated beam on the self-adaptive pad device, install the prefabricated beam, and gradually solidify after the set time. Since the self-adaptive spacer device can be freely deformed before the ...

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Abstract

The invention relates to a self-adaptive adjusting backing plate device for a prefabricated assembly bridge. The self-adaptive adjusting backing plate device comprises a metal box, wherein the metal box is deformable under action of pressure; the metal box is filled with a polymer steel sand mixture containing a curing agent; the polymer steel sand mixture is in a flow plastic state within a set time and becomes a solid state after reaching the set time; and after the self-adaptive adjusting backing plate is mounted, the polymer steel sand mixture is condensed into the solid state within a certain time and is permanently molded. The self-adaptive adjusting backing plate provided by the invention can automatically adapt to changes of a transverse slope and a longitudinal slope of the prefabricated assembly bridge, and is simple in construction, economical and beautiful.

Description

technical field [0001] The invention relates to the field of bridge engineering, in particular to an self-adaptive adjustment pad device for a prefabricated and assembled bridge and a construction method thereof. Background technique [0002] At present, the support installation of prefabricated bridges requires that the top and bottom surfaces of the supports are parallel to each other. Only by embedding pre-embedded steel plates at the bottom of the prefabricated beams and manually adjusting the embedding angle of the steel plates to meet the requirements of the vertical and horizontal slopes of the bridge. However, there are often errors and difficulties in the embedding of steel plates. In addition to the existence of errors in beam prefabrication and on-site construction, it is often difficult for steel plates and supports to be closely attached, resulting in uneven force on the supports. This is not only detrimental to the force of the beam and the durability of the su...

Claims

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Application Information

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IPC IPC(8): E01D21/00
Inventor 魏明光李国平卢永成陈明颜海张春雷肖纬
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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