Bridge-limited energy dissipation type seismic mitigation and isolation bearing and production method thereby

Abstract

The invention discloses a bridge-limited energy dissipation type seismic mitigation and isolation bearing and a production method and belongs to the technical field of bridge bearings. The bearing comprises an upper bearing plate, a bearing basin and a seismic mitigation and isolation module. The upper bearing plate is arranged on the bearing basin, the periphery of the upper bearing plate is provided with the seismic mitigation and isolation module composed of an outer steel plate, a high damping rubber block and an inner connecting steel plate, the high damping rubber block is arranged between a perpendicular plate in the outer steel plate and the inner connecting steel plate. A limit stopper which restricts the horizontal direction of the outer steel plate and is arranged on the periphery of a bearing basin plate and close to the inner side of the perpendicular plate, when the limit bolt is cut by the exogenic process, the outer steel plate restricts the relative displacement of a pier beam and the high damping rubber block plays roles of shock absorption and certain self-resetting ability by the energy consumption of cutting and tension and compression deformation. The most major advantage of the bridge-limited energy dissipation type seismic mitigation and isolation bearing and the production method is the integration of the limit function of the pier beam in the traditional spherical bearing or a pot bearing, and the design, the construction difficulty and the economic cost of post-earthquake repair are reduced.

Description

technical field [0001] The invention relates to the technical field of bridge manufacture, in particular to a bridge position-limiting energy-dissipating type shock-absorbing and isolating support and a manufacturing method thereof. Background technique [0002] Excessive relative deformation of pier beams or even falling beams are important manifestations of bridge earthquake disasters. For this reason, people have developed a variety of technologies to limit the relative deformation of pier beams under earthquake action. These technologies are generally independent of the support. By setting stoppers, steel plates, cables and other devices between the bridge pier and the main girder, it will make the space layout, reinforcement and construction formwork of the main girder and bridge pier more complicated. The present invention proposes a new space-limited shock-absorbing and isolating bearing on the basis of traditional bearings such as spherical bearings and pot bearings....

AI Technical Summary

Problems solved by technology

These technologies are generally independent of the support, and by setting stoppers, steel plates, cables and other devices between the bridge pier and the main girder, it will make the space layout, reinforcement and construction formwork of the main girder and bridge pier more complicated.

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