Seismic mitigation and absorption bridge structural system with buckling restrained support and seismic isolation rubber bearings

Abstract

The invention discloses a seismic mitigation and absorption bridge structural system with a buckling restrained support and seismic isolation rubber bearings. The seismic mitigation and absorption bridge structural system comprises bridge piers, a capping beam which is fixed on the upper portions of the bridge piers and a main beam which is placed on the upper end face of the capping beam. The bridge piers are double-upright bent frame piers. The buckling restrained support is fixed in the direction of the diagonal of a rectangle which is formed by the double-upright bent frame piers, the capping beam and the ground, and the tilting direction of a connecting line of the fixing ends of the buckling restrained support is the same as the tilting direction of the diagonal of the rectangle formed by the double-upright bent frame piers, the capping beam and the ground. The seismic isolation rubber bearings are arranged on the contacting end face of the capping beam and the main beam. By the adoption of the structure, the buckling restrained support and the seismic isolation rubber bearings are arranged, the purposes that the buckling restrained support is used for enhancing the seismic capacity of the bent frame piers in the bridge transverse direction and the seismic isolation rubber bearings are used for achieving the seismic mitigation and absorption effect in the bridge longitudinal direction are achieved, and the anti-seismic property of the bridge entire structure is improved.

Description

technical field [0001] The invention relates to a bridge structure system, in particular to a novel bridge structure system which utilizes buckling constraint supports and rubber bearings to improve the seismic capacity of the bridge. Background technique [0002] The existing frame-bent bridge structure system generally consists of a frame-bent pier standing on the ground, a cover beam fixed above the frame-bend pier, and a main girder arranged on the upper end of the cover beam. In terms of seismic performance improvement, such a structure generally adopts It is achieved by improving material properties or increasing the size of the corresponding structure, without making improvements to the structural system to improve the seismic performance of the bridge. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a novel bridge structure system that uses buckling restraint supports and seismic isolation rubber bearings...

AI Technical Summary

Problems solved by technology

[0002] The existing frame-bent bridge structure system generally consists of a frame-bent pier standing on the ground, a cover beam fixed above the frame-bend pier, and a main girder arranged on the upper end of the cover beam. In terms of seismic performance improvement, such a structure generally adopts Improve the performance of materials or increase the size of the corresponding structure, without making improvements to the structural system, to improve the seismic performance of the bridge

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