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Road and bridge connecting structure and construction method thereof

A technology for connecting structures and construction methods, applied in infrastructure engineering, bridges, bridge construction, etc., can solve the problems of bridge head jumping, complex connection structure, etc., and achieve the effect of preventing bridge head jumping, strong structural integrity, and prevention of settlement.

Active Publication Date: 2021-01-29
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of bridge head jumping and complex connection structure through a connection structure between road and bridge, and effectively prevent the settlement of road and bridge

Method used

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  • Road and bridge connecting structure and construction method thereof
  • Road and bridge connecting structure and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as Figures 1 to 2 Shown, a kind of connection structure of road and bridge comprises sliding layer 6, elastomer backing plate 7, expansion and contraction damping device and supporting foot, and the upper end of described sliding layer 6 is connected with board 4, and the upper end of described board 4 The two ends are respectively connected with the bridge deck 2 of the road 5 and the bridge; the elastic backing plate 7 and the telescopic damping device are arranged between the sliding layer 6 and the supporting feet; the sliding layer 6, the elastic backing plate 7, the telescopic The shock absorbing device and the supporting feet are sequentially connected from top to bottom. The sliding layer 6 undergoes sliding friction due to the stress generated by the passing of the vehicle, offsets part of the stress, and transmits the remaining stress to the elastic backing plate 7, which absorbs the vibration stress generated when the vehicle ruts pass by. The telescop...

Embodiment 2

[0043] The connection structure of this a kind of road and bridge is with embodiment one except following technical characteristics:

[0044] The elastic backing plate 7 is made of styrene, which has an extremely high modulus of elasticity and does not vary with the relative molecular weight. Styrene is used to increase the elasticity of the elastic backing plate 7 .

Embodiment 3

[0046] The connection structure of this a kind of road and bridge is with embodiment one except following technical characteristics:

[0047] The elastomer backing plate 7 is made of polyolefin, which has excellent physical and mechanical properties and good low-temperature performance, and because its molecular chain is saturated and contains relatively few tertiary carbon atoms, it has excellent For heat resistance and anti-ultraviolet performance, polyolefin is used to increase the elasticity of the elastomer backing plate 7, and resist the thermal melting effect that occurs when the elastomer backing plate 7 is stressed.

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Abstract

The invention provides a road and bridge connecting structure and a construction method thereof. The connecting structure comprises a sliding layer, an elastomer base plate and a telescopic damping device, the upper end of the sliding layer is connected with a butt strap, the two ends of the butt strap are connected with a road and a bridge correspondingly, and the elastomer base plate and the telescopic damping device are arranged between the sliding layer and supporting legs of the bridge; the sliding layer, the elastomer base plate and the telescopic damping device are sequentially connected from top to bottom, the telescopic damping device further comprises a rubber block and a memory alloy spring, and the memory alloy spring is placed in the rubber block. The structure is simple, construction is convenient, bridge deck deformation and sedimentation can be effectively prevented, and the manufacturing cost of the structure is low.

Description

technical field [0001] The invention belongs to the field of civil engineering, and in particular relates to a connection structure between a road and a bridge and a construction method thereof. Background technique [0002] People's requirements for driving safety, stability and comfort are gradually increasing, but road hazards such as road surface subsidence, muddying and bridge head jumping are bothering people. Bridge head jumping is a common problem in highway construction. The main reason for its formation is the difference in physical properties between the rigidity of the bridge body and the flexibility of the road and the soft foundation soil structure during the connection between the road and the bridge. Due to the pressure settlement of the bridge head, the breakage of the bridgehead connection will cause the vehicle body to jump up during the passage of the vehicle, which will easily cause the vehicle to lose control and cause traffic accidents. The main cause...

Claims

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Application Information

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IPC IPC(8): E01D19/00E01D21/00E01D19/02E01D19/12E02D27/14E01D19/06
CPCE01D19/00E01D21/00E01D19/02E01D19/125E02D27/14E01D19/065
Inventor 于华洋蔡志炜虞将苗
Owner SOUTH CHINA UNIV OF TECH