Self-resetting multidirectional limiting energy-dissipation anti-seismic check block structure

Abstract

The invention relates to the technical field of bridge seismic resistance, in particular to a self-resetting multi-directional limiting energy-dissipation anti-seismic check block structure which comprises a stop block, wherein the bottom of the stop block is fixedly connected with the top edge of a bent cap; a steel frame which comprises a steel plate, wherein the steel plate is of an L-shaped structure composed of a transverse plate arranged at the top of the stop block and a vertical plate arranged at the outer end of the bottom of the transverse plate, a damping spring is arranged betweenthe vertical plate and the outer side wall of the stop block, and the inner end of the transverse plate is fixedly connected with the side face of a beam body; and a limiting stopper which is arrangedbetween the stop block and the beam body, wherein the limiting stopper comprises a first limiting stopper support fixed to the inner side wall of the stop block and a second limiting stopper supportfixed to the outer side of the beam body, and a limiting stopper elastic belt is arranged between the first limiting stopper support and the second limiting stopper support in a sleeved mode. Relativelarge displacement of the bridge body and the bent cap in multiple directions in an earthquake can be effectively limited, the support is prevented from being damaged, and beam falling and earthquakedamage are prevented.

Description

technical field [0001] The invention relates to the field of bridge anti-seismic technology, in particular to a self-resetting multi-directional energy-dissipating anti-seismic block structure. Background technique [0002] my country is located between the two major seismic belts in the world - the circum-Pacific seismic belt and the Eurasian seismic belt. It is squeezed by the Pacific plate, the Indian plate and the Philippine Sea plate, and the seismic fault zone is very active. Since the 1980s, my country has entered a new period of seismic activity, and the frequency of earthquakes has increased significantly. And my country's earthquake damage has the characteristics of high intensity, high frequency and wide distribution. The bridge is an important way of transportation, the vibration of the bridge deck will seriously affect the life of the bridge, especially in the case of earthquake disasters, it will cause serious damage to the bridge, lead to traffic interruption...

AI Technical Summary

Problems solved by technology

There are some relatively small bridge bearings, but the shock absorption effect is not ideal, especially when an earthquake occurs, the effect of reducing energy waves along the bridge direction and vertical direction is very poor

The traditional reinforced concrete block is too heavy, brittle in nature, inconvenient to repair, prone to irreparable damage, and the direction of limiting displacement is too single, which is not suitable for the earthquake resistance of bridges in seismically active areas

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