Dislocation Expansion Joint Construction of Broken Joints in Bridge Structure

Abstract

The invention discloses a dislocation expansion joint structure of broken joints in a bridge structure, which comprises two bridge bodies, the adjacent sides of the two bridge bodies are provided with first grooves, and the upper surface of the bridge body is provided with two second grooves. A plate body, the upper surface of the first plate body is provided with expansion anchor bolts, the first plate body is fixedly connected to the upper surface of the bridge body through the expansion anchor bolts, and one of the two adjacent first plate bodies Each side is provided with a second groove, and the inner side wall of one of the second grooves is fixedly connected with a second plate, and the side of the second plate away from one second groove is slidably connected to the other second groove. The inner wall of the groove; when the weather is hot, the distance between the two bridge bodies gradually increases, so that the two first plates gradually move away from each other, and then the second plate moves away from the second groove Sliding, the first plate body will drive the third plate body away from each other, so that the fourth plate body will be gradually straightened through the fifth plate body.

Description

technical field [0001] The invention relates to the technical field of building expansion joints, in particular to the structure of dislocation expansion joints of broken joints in bridge structures. Background technique [0002] As we all know, due to the influence of a series of external loads such as indoor and outdoor temperature changes, concrete permissible changes, shrinkage, and vehicle dynamic loads, the length of the bridge girder body will change, causing displacement of the bridge end. In order to adapt to this displacement, keep the entire beam body stable, and ensure safe and comfortable driving, expansion joints must be set at reasonable positions in the bridge structure. Since highway bridges are all outdoors, under the action of various influencing factors, the bridge body is prone to deformation. If the deformation is too large, it will directly affect the safety of the bridge body. Due to the displacement between superstructures caused by the characterist...

AI Technical Summary

Problems solved by technology

After the finished expansion joint is welded with fixed supports, its opening width cannot be adjusted at a fixed value. When the construction period is delayed, the temperature difference between the installation and the calculated temperature difference is large, or other reasons need to readjust the opening width, the manufacturer It is necessary to cut off all the originally welded fixed supports, then readjust the width and the flatness of the steel, and then weld and fix after adjustment, resulting in a lot of waste of manpower and material resources

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