A bridge anti-seismic and anti-overturning structure and method

Abstract

The invention relates to a bridge anti-seismic and anti-overturning construction and a bridge anti-seismic and anti-overturning method, and belongs to the technical field of structural engineering. Baffle plates are arranged on the outer side of two ends of a beam body respectively, and slotted holes are formed in the two ends of the beam body; a wear-resistant pipe is embedded and arranged in each slotted hole; a steel strand is arranged in each wear-resistant pipe; two ends of each steel strand extend outwards to the outer side of the baffle plates directly opposite to the two ends of the beam body and are anchored by anchor blocks, so that the longitudinal, transverse and vertical displacement of the beam body is restricted together by the baffle plates on both sides of the beam body; sleeves are arranged on the outer walls of the contact sections of the steel strands and the baffle plates; and reinforcing meshes are arranged on the peripheries of the sleeves inside the baffle plates. According to the construction and the method, longitudinal and transverse beam falling occurring under a bridge decking earthquake effect can be effectively prevented, overturning occurs under an unbalance loading effect, and additional internal force caused by deformation generated by concrete shrinkage and temperature effect can also be avoided; moreover, the construction is simple, firm, reliable, convenient and economical, and can be widely applied to bridges so as to prevent beam falling and overturning.

Description

technical field [0001] The invention belongs to the technical field of bridge structure engineering, and in particular relates to a bridge anti-seismic and anti-overturning structure and method applied to bridge anti-seismic and anti-overturning combined technology. Background technique [0002] my country is located at the junction of the circum-Pacific seismic belt and the Eurasian seismic belt. There are also many seismic belts distributed vertically and horizontally in the country, and it is a country with many earthquakes. With the continuous occurrence of domestic earthquakes in recent years, it has seriously restricted the development of the national economy and caused great losses to people's lives and property. Through the investigation of the typical seismic damage of bridges in previous earthquakes, the results show that the main forms of main girder are girder falling, local collision damage, and longitudinal and lateral displacement. [0003] At present, the cu...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a bridge anti-seismic and anti-overturning structure that can adapt to the displacement of the bridge deck system and resist falling beams and overturning, so as to solve the problem of weak anti-seismic and anti-overturning capabilities of existing bridges, and neither restrict the longitudinal temperature deformation of the bridge deck system , and can effectively provide longitudinal, horizontal and vertical constraints to prevent the bridge deck system from falling beams and overturning

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