Footpath expansion joint device capable of automatically adapting to height difference displacement

Abstract

The invention discloses a footpath expansion joint device capable of automatically adapting to a height difference displacement. The footpath expansion joint device includes an anchoring connection component, the anchoring connection component is connected with a sliding cover plate component, a supporting steel plate component is arranged below the sliding cover plate component, the anchoring connection component and the supporting steel plate component are fixedly connected with concrete on both sides of an expansion joint respectively, and the sliding cover plate component is located abovethe supporting steel plate component and the expansion joint. According to the footpath expansion joint device, a large horizontal displacement is provided by using aging-resistant all-metal members;by using the anchoring connection component with a spring, vertical displacement and rotational displacement are realized, so that the footpath expansion joint device can automatically adapt to the vertical displacement difference and vertical rotation of the structure of both sides of the expansion joint, and smooth connection of the height difference on both sides of the expansion joint is ensured.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a walkway expansion joint device that automatically adapts to height difference displacement. Background technique [0002] The walkway expansion joint device is a part of the bridge walkway components. It is set up to adapt to the deformation of the bridge due to temperature, vibration and other reasons, and to ensure the safety and comfort of pedestrians during walking and the durability of the bridge. Although it is an accessory component of the bridge, its importance cannot be ignored. [0003] Looking at the bridge diseases in recent years, especially the diseases of the bridge deck system, most of the expansion joints are damaged most seriously. After its destruction, rainwater seeps into the beam body, causing the steel bar to rust and swell, and the cases of concrete component damage are not uncommon. The main reason is that the existing pavement expansion j...

AI Technical Summary

Problems solved by technology

The main reason is that due to the simple structure of the existing footpath expansion joints, it can only satisfy the horizontal displacement along the bridge direction. Once the vertical displacement difference on both sides or a certain rotational displacement occurs, it cannot meet the deformation requirements, resulting in damage to the expansion joints.

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