A connection structure of road and bridge and construction method thereof

Abstract

The invention discloses a connection structure between a road and a bridge and a construction method thereof, comprising a sliding layer, an elastic backing plate and a telescopic vibration damping device. The upper end of the sliding layer is connected with a tie plate, and the two ends of the tie plate are respectively connected with the road and the bridge. Connection, the elastomer backing plate and the telescopic vibration damping device are arranged between the sliding layer and the supporting feet of the bridge, the sliding layer, the elastic backing plate and the telescopic damping device are connected in sequence from top to bottom, and the telescopic damping device also includes a rubber block And the memory alloy spring, the memory alloy spring is placed in the rubber block. The invention has simple structure, convenient construction, can effectively prevent bridge deck deformation, prevent settlement, and has low structural cost.

Description

technical field

[0001] The invention belongs to the field of civil engineering, and particularly relates to a connection structure of a road and a bridge and a construction method thereof. Background technique

[0002] People's requirements for the safety, stability and comfort of driving are gradually increasing, but road hazards such as road subsidence, pulping and bridge jumping have plagued people. Bridge head jumping is a common problem in highway construction. The main reason for its formation is in the process of connecting highway and bridge, due to the difference in physical properties between the rigidity of the bridge body and the flexibility of the highway and the relatively soft foundation soil structure. Due to the pressure settlement, the bridge head connection breaks during the passage of the vehicle, causing the vehicle body to jump up, which is easy to cause the vehicle to lose control and cause traffic accidents. The main reasons for bridge head jumping a...

Examples

Embodiment 1

[0030] like Figures 1 to 2 As shown in the figure, a connection structure between a road and a bridge includes a sliding layer 6, an elastomer backing plate 7, a telescopic vibration damping device and a supporting foot, the upper end of the sliding layer 6 is connected with a tie plate 4, The two ends are respectively connected with the road 5 and the bridge deck 2 of the bridge; the elastomer pad 7 and the telescopic vibration damping device are arranged between the sliding layer 6 and the support feet; the sliding layer 6, the elastomer pad 7, the telescopic The vibration damping device and the supporting feet are connected in sequence from top to bottom. The sliding layer 6 is subjected to sliding friction caused by the stress generated by the passing of the vehicle, offsets part of the stress, and transmits the remaining stress to the elastomer pad 7, and the elastomer pad 7 absorbs the vibration stress generated when the vehicle ruts passes. The telescopic vibration da...

Embodiment 2

[0043] This connection structure of a road and a bridge is the same as the first embodiment except the following technical features:

[0044] The elastomer backing plate 7 is made of styrene, which has an exceptionally high elastic modulus and does not change with the relative molecular mass, and styrene is used to increase the elasticity of the elastomeric backing plate 7 .

Embodiment 3

[0046] This connection structure of a road and a bridge is the same as the first embodiment except the following technical features:

[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 properties. For heat resistance and anti-ultraviolet performance, polyolefin is used to increase the elasticity of the elastomer backing plate 7 to resist the hot melt effect when the elastomer backing plate 7 is stressed.

technical field

[0001] The invention belongs to the field of civil engineering, and particularly relates to a connection structure of a road and a bridge and a construction method thereof. Background technique

[0002] People's requirements for the safety, stability and comfort of driving are gradually increasing, but road hazards such as road subsidence, pulping and bridge jumping have plagued people. Bridge head jumping is a common problem in highway construction. The main reason for its formation is in the process of connecting highway and bridge, due to the difference in physical properties between the rigidity of the bridge body and the flexibility of the highway and the relatively soft foundation soil structure. Due to the pressure settlement, the bridge head connection breaks during the passage of the vehicle, causing the vehicle body to jump up, which is easy to cause the vehicle to lose control and cause traffic accidents. The main reasons for bridge head jumping a...

Examples

Embodiment 1

[0030] like Figures 1 to 2 As shown in the figure, a connection structure between a road and a bridge includes a sliding layer 6, an elastomer backing plate 7, a telescopic vibration damping device and a supporting foot, the upper end of the sliding layer 6 is connected with a tie plate 4, The two ends are respectively connected with the road 5 and the bridge deck 2 of the bridge; the elastomer pad 7 and the telescopic vibration damping device are arranged between the sliding layer 6 and the support feet; the sliding layer 6, the elastomer pad 7, the telescopic The vibration damping device and the supporting feet are connected in sequence from top to bottom. The sliding layer 6 is subjected to sliding friction caused by the stress generated by the passing of the vehicle, offsets part of the stress, and transmits the remaining stress to the elastomer pad 7, and the elastomer pad 7 absorbs the vibration stress generated when the vehicle ruts passes. The telescopic vibration da...

Embodiment 2

[0043] This connection structure of a road and a bridge is the same as the first embodiment except the following technical features:

[0044] The elastomer backing plate 7 is made of styrene, which has an exceptionally high elastic modulus and does not change with the relative molecular mass, and styrene is used to increase the elasticity of the elastomeric backing plate 7 .

Embodiment 3

[0046] This connection structure of a road and a bridge is the same as the first embodiment except the following technical features:

[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 properties. For heat resistance and anti-ultraviolet performance, polyolefin is used to increase the elasticity of the elastomer backing plate 7 to resist the hot melt effect when the elastomer backing plate 7 is stressed.

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