Novel composite maintaining method of hinged joint of bridge

Abstract

The invention relates to a novel composite maintaining method of a hinged joint damage of a bridge. The method is characterized in that (1) a broken asphalt layer and cement paved layer on both sides of a hinged joint of a bridge to be maintained are chipped away, the broken concrete in a plate-girder chamfer is chipped away; (2) plastic foam and adhesive tapes are used for sealing the gaps at the bottom of the plate-girder chamfer; (3) a foldable reinforcement cage is arranged in the chamfer at the plate-girder hinged joint; (4) reinforcing steel bars on the upper part of the foldable reinforcement cage, reinforcing steel bars laid on the previous bridge deck and added reinforced nets are in electric soldering connection; (5) quick concrete is cast at the chamfer of the plate-girder hinged joint and the paved layer of the bridge deck; (6) the quick concrete is maintained; and (7) elastic concrete is paved and compacted on the quick concrete after the quick concrete reaches a specific strength, and the pavement can be opened. The maintaining method has the advantages that the structure problem is solved, the bridge decks are connected into a whole and integrally stressed, the maintenance is quick, and the traffic is little influenced.

Description

technical field [0001] The invention relates to a method for repairing damaged bridge hinge joints, especially to strengthen and protect the structure. Background technique [0002] The bridge deck is composed of several slab girders. In order to make the bridge deck form a whole, it is necessary to seam the two adjacent slab girders, and cast the bridge deck pavement layer after laying steel bars on the bridge deck to achieve The overall force requirements of the bridge deck. Due to the frequent overloading of the current road traffic and the original construction quality, the hinge joints of the plate girders at the adjacent lanes are easily damaged. Once an overweight vehicle passes by, it may cause the plate beam to break and cause a serious incident. At present, there are relatively few studies on the maintenance of hinge joints, most of which are just surface treatment, and cannot completely solve the problem. According to the current large traffic flow, it is necess...

AI Technical Summary

Problems solved by technology

Due to the frequent overloading of the current road traffic and the original construction quality, the hinge joints of the plate girders at the adjacent lanes are easily damaged. Once there is an overweight vehicle passing by, it may break the plate beam and cause a serious incident

At present, there are relatively few studies on the maintenance of hinge joints, most of which are just surface treatment, and cannot completely solve the problem. According to the current large traffic flow, it is necessary to solve structural problems and repair quickly. Therefore, Cheng is to invent a composite repair A New Method for Bridge Articulation

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