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Bridge anti-overturning adjustable support construction method

A construction method and anti-overturning technology, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of easily disturbed bridges and hidden safety hazards, and achieve the effect of shortening the construction period, saving construction time, and convenient operation.

Inactive Publication Date: 2020-03-24
BEIJING MUNICIPAL CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, it is easy to disturb the original bridge during the jacking process, and there are potential safety hazards

Method used

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  • Bridge anti-overturning adjustable support construction method
  • Bridge anti-overturning adjustable support construction method
  • Bridge anti-overturning adjustable support construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment 1 of the present invention provides a bridge anti-overturning adjustable support, the structure of which is as follows: figure 1 As shown, it includes a steel plate 1 on the support, an upper slider 2, a lower tank body 3, a rubber plate 4, and a steel plate 5 under the support.

[0050] The upper steel plate 1 of the support is fixed on the bottom of the bridge beam by the upper bolt; the lower steel plate 5 of the support is fixed on the top surface of the pier column by the lower bolt; The frame body between the lower steel plates 5, and the upper slider 2 can slide up and down in the chute of the lower tank body 3, and a space for a filler is formed in the chute; the filler can be polyurethane or the like. The bottom of the frame body has a filler perfusion channel 31 leading to the space, and the outer side of the filler perfusion channel 31 is connected with a joint for an external pipeline, and fillers such as polyurethane can be filled through the fil...

Embodiment 2

[0053] The invention provides a construction method for bridge anti-overturning adjustable bearings. Before implementing the method, the following work needs to be done:

[0054] The built adjustable support trial installation system, such as figure 2 As shown, the adjustable support trial installation system includes: a support installation operation platform built around the original pier column, and assembled movable support lifting equipment. The movable support lifting equipment consists of a forklift and a support mounting bracket assembled with a steel pipe bracket. The support mounting bracket is fixed on the forklift's fork, and the support mounting bracket is controlled with the lifting and falling of the forklift's fork. the height of.

[0055] After the installation of the adjustable support trial installation system is completed, the adjustable support construction method of the present invention is implemented using the adjustable support trial installation sys...

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Abstract

The invention relates to a bridge anti-overturning adjustable support construction method and an applied adjustable support, and the method comprises the steps: cleaning a screw hole at the bottom ofa beam, smearing a steel bar embedding adhesive, enabling an upper bolt of the adjustable support to be inserted into the screw hole at the bottom of the bridge through movable support lifting equipment, and enabling the adjustable support to be in place; jacking the adjustable support by lifting the movable support lifting equipment, supporting the adjustable support temporarily on the support mounting operation platform through a supporting frame, and dropping the support lifting equipment through a forklift after stable supporting; implanting steel bar nails into the screw holes in the peripheral walls of the pier column; binding a reinforcing mesh outside the pier stud and fixing the reinforcing mesh and the reinforcing nails together; installing a steel plate protective layer on the periphery of the reinforcing mesh; pouring concrete into the steel plate protection layer; and jacking the adjustable support by the support jacking device, so that the jacking force of the adjustablesupport to the bridge reaches a set value. The original bridge support does not need to be replaced, and the current bridge is jacked, so that the stability of the original support can be guaranteed,the construction time can be saved, and the construction period is shortened.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a construction method for a bridge anti-overturning adjustable support. Background technique [0002] With the occurrence of some bridge overturning accidents in China, the research on anti-overturning of bridges has attracted more and more attention from the society. Due to the small bridge width of the planar curved bridge supported by single columns (also called independent pier columns) and the small lateral spacing of side supports, the torsional restraint of the side supports on the main girder is weak. The torsional restraint is not strong. Under the action of eccentric load, it is easy to cause the support to fall out, the rotation angle of the middle pier support to exceed the limit, and the bearing capacity of the middle pier and the foundation to be insufficient, which will lead to the change of the stable support system of the main beam structure. There w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/04
CPCE01D19/048
Inventor 王海涛李建华张旭武子荐丁彬王森张峥杜贺军张尧秦晓明赵云田弟晨娟
Owner BEIJING MUNICIPAL CONSTR