Seamless expansion joint device

Abstract

The invention relates to the technical field of bridges, in particular to a seamless expansion joint device. The device includes beam bodies and an expansion joint device body. The expansion joint device body includes an abrasion body assembly, an anchoring component and a joint connector, the abrasion body component is anchored at beam body joints between the two beam bodies through the anchoringcomponent, the abrasion body assembly includes a pair of channel-section steel clamps forming mirror images and a clamp type plastic rubber body, the portions, facing the inner sides of the beam bodyjoints, of the channel-section steel clamps are provided with clamp grooves, the two ends of the clamp type plastic rubber body are connected with the clamp grooves through clamping, the joint connector includes two connection steel plates which are hinged, the anchoring component is fixed on the fracture surfaces of the pair of beam body joints, and two connection steel plates of the joint connector are fixedly connected with the anchoring component. The joint connector can play a good role in energy dissipation and cushioning, and the clamp type plastic rubber body ensures flatness and smoothness and meanwhile has the functions of blocking and preventing rainwater seepage.

Description

technical field [0001] The invention relates to the technical field of bridges, in particular to a seamless expansion joint device. Background technique [0002] The bridge expansion joint device is an important part to ensure the safe and comfortable driving of vehicles between different beam sections under the condition of reducing the force on the beam body under the action of temperature. The seamless expansion joint device has the advantages of smooth driving, small vibration and low noise, and is widely used in bridge engineering. At present, the commonly used seamless expansion joint devices mainly include BJ200 polymer seamless expansion joint device, TST elastoplastic seamless expansion joint device, modified asphalt seamless expansion joint device, etc. Special high-viscosity elastic-plastic materials such as body, which are elastic-plastic at room temperature, are mixed with gravel after melting at high temperature to form an elastic-plastic gravel mixture. The ...

AI Technical Summary

Problems solved by technology

The application shows that since the elastic-plastic gravel mixture of the main material of the seamless expansion joint is not only used as the carrier of temperature expansion and vehicle impact, but also as the wear body of the bridge deck pavement, the force is complex, and the temperature change and frequent vehicle loads Fatigue damage is prone to occur under the environment, and the maintenance frequency is high

During maintenance, it is necessary to dig out the original high-viscosity elastic-plastic material and then replace it with new hot-melt material for paving. The traffic can only be opened after hardening, which leads to low traffic capacity of the bridge during the maintenance period and serious congestion problems, which bring great inconvenience to people’s lives.

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