Anti-erosion expansion joint device

Abstract

The invention discloses an anti-erosion expansion joint device, and relates to the field of bridge construction. The device comprises a concrete cover plate and a bottom plate, damping springs are arranged in the middle of the concrete cover plate, and a rubber pad is arranged on the lower portion. Two concrete waterproof baffles are connected with the bottom plate in a bilateral symmetry mode, stainless steel pulleys are arranged at the upper ends and the lower ends of the concrete waterproof baffles, the middle of the bottom plate is composed of two concrete blocks which are connected with each other, the concrete blocks and the concrete waterproof baffles are connected through anti-resonance springs with different elastic coefficients, and the two concrete blocks are connected in an embedded mode. The upper concrete block is covered with a rubber pad at the embedded section, and the upper part thereof is provided with a steel pulley. Stainless steel pulleys are installed at the two ends of the upper portion of the stainless steel beam, the lower portion of the stainless steel beam is connected with the bottom plate in an embedded mode, the section of the connecting position is covered with rubber, the stainless steel beam with the T-shaped section is embedded in the upper portion of the bottom plate, and the stainless steel pulleys are arranged at the two ends of the bottom plate. The anti-cracking performance and corrosion resistance of the bridge are improved, the resonance influence of vehicle loads on the bridge is reduced, and the bridge is beautified.

Description

Technical field [0001] The present invention belongs to the field of bridge construction, and particularly to an anti-corrosion expansion joint device. Background technique [0002] That bridge expansion joints, since the means to prevent the temperature change as a bridge, so that the structure cracks or destruction of a bridge structure or appropriate parts along the direction of the bridge construction joints disposed slits. Is the basis of the above joints of building components such as walls, floors, roofs, etc. is divided into two separate parts, so that the building or structure in the lengthwise direction of the horizontal scaling do. But with the requirements of the current bridge on the stretch in recent years introduced a number of foreign advanced technology, corrosion resistance, high capacity, and gradually form a good seismic expansion joint technology. [0003] With the development of our country in the field of bridge engineering, bridge safety problems have grad...

AI Technical Summary

Problems solved by technology

[0018] In order to solve the above-mentioned existing technical problems, the object of the present invention is to provide an anti-erosion expansion joint device, which helps the closure device avoid Impurities such as rainwater and dust erode and block the expansion joints. Springs with different elastic coefficients are set between the concrete waterproof baffle and the concrete block to resist the resonance effect of the bridge caused by the vibration of the vehicle, which solves the problem of low structural strength of the existing bridge expansion joints. Poor anti-vibration performance, easy to be corroded and blocked by impurities such as rainwater and dust, and the old expansion joints cannot play their role normally

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