Method capable of dissipating effect of horizontal earthquake force during earthquake and bridge bearing

A bridge bearing and horizontal force technology, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of lack of scattered seismic horizontal force and dissipated seismic horizontal force, etc., to improve the seismic safety performance and reduce the mass of bridge piers. , the effect of landscape coordination and unity

Inactive Publication Date: 2012-04-11
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to address the lack of dispersed seismic horizontal force in existing b

Method used

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  • Method capable of dissipating effect of horizontal earthquake force during earthquake and bridge bearing
  • Method capable of dissipating effect of horizontal earthquake force during earthquake and bridge bearing
  • Method capable of dissipating effect of horizontal earthquake force during earthquake and bridge bearing

Examples

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Embodiment 1

[0030] An elastoplastic damper and speed locker combination support installed between a bridge and a pier for bearing vertical force; it consists of three major components: a movable support 11, an elastoplastic damper 7 and a speed locker 6. The support bears the vertical load, and various vertical loads such as the self-weight of the bridge and the vehicle are transmitted to the pier through the support, and the pier is then transmitted to the pile foundation and the ground. The upper plate assembly 1 is installed on the bottom of the beam, and the lower plate assembly 10 is installed on the pad stone of the pier support. Under the normal working condition of the bridge, the invention acts on the movable support in the same way, and when the bridge creeps due to temperature and other reasons, the invention allows the bridge to move slowly in the longitudinal direction. When an earthquake occurs, the speed locker 6 in the present invention takes effect, and the speed locker 6...

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Abstract

The invention provides a method capable of dissipating the effect of a horizontal earthquake force during an earthquake and a bridge bearing. In the method, an elastic-plastic damper, a speed locking device and a movable bearing are combined together to form the combined bridge bearing, and the effect of the horizontal earthquake force on a bridge is dissipated through the combined bridge bearing during an earthquake; under normal circumstances, the speed locking device moves slowly, and the elastic-plastic damper does not work; and in case of earthquake, the speed locking device executes a locking function so as to drive the elastic-plastic damper to move, and the elastic-plastic damper quickly enters a plastic stage from an elastic stage and starts energy consumption so as to reduce damage of earthquake energy on the bridge. The bridge bearing provided by the invention has the beneficial effects of meeting normal working condition of the bridge and playing a role of protecting the bridge.

Description

technical field [0001] The invention relates to a bridge anti-seismic method and a component structure, in particular to a method for dissipating seismic horizontal force during an earthquake in a bridge structure and a bridge support. Background technique [0002] At present, continuous girder bridges for highways and railways are generally designed with one fixed pier, and the rest are movable piers; the corresponding supports of bridges are generally designed as ordinary anti-seismic supports, which causes the braking force and longitudinal seismic force to be borne by the fixed pier; For long-span bridges in high-seismic areas, when doing bridge seismic analysis, since the movable piers cannot disperse the seismic horizontal force, the fixed piers have to bear all the seismic horizontal forces, which usually makes the bridge seismic analysis fail to pass the check calculation. The traditional design scheme not only has a very large volume of fixed piers, but also unbalan...

Claims

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Application Information

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IPC IPC(8): E01D19/04
Inventor 侯海彪张鹤刘军许明杰李文斌吕娜胡宇新郭红锋陈娅玲陈忠海
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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