Collision rotation buffering energy dissipation type bridge anti-seismic check block structure

Abstract

The invention relates to the technical field of bridge seismic resistance, in particular to a collision rotation buffering energy dissipation type bridge anti-seismic check block structure which comprises a steel corbel, a rotating mechanism, steel baffles, collision cylinders and steel supports, wherein the steel corbel is fixed above the side wall of a pier through a steel corbel bolt; the two steel supports are fixed to the top of the steel corbel, top plates at the top ends of the two steel supports are arranged in a relatively inclined mode, a V-shaped inlet used for allowing the rotatingmechanism to be inserted in is formed between the top plates, and the rotating mechanism is installed at the top of the steel corbel through a third rotating hinge support; the two steel baffles arefixed to the bottom of the main beam through steel baffle bolts, and gaps are formed between the inner walls of the steel baffles and the two collision cylinders at the top of the rotating mechanism.Excessive displacement of the beam body and the bridge piers in the bridge direction can be limited, and the beam falling phenomenon is avoided; rigid collision between the beam body and the check block is converted into flexible collision, and part of earthquake energy is consumed through deformation of the collision cylinder and the torsion spring.

Description

technical field [0001] The invention relates to the field of anti-seismic technology of bridges, in particular to an anti-seismic block structure of a collision-rotation buffering energy-consuming bridge. Background technique [0002] my country's economy has grown rapidly in recent years, and the state has invested more and more in various projects that are beneficial to social development and improvement of people's livelihood, and infrastructure work has also developed rapidly. Road transportation construction plays an important role in regional economic development. The bridge is the hub of the traffic route. Once an accident occurs on the bridge, it will bring a series of economic problems and social effects. Therefore, the safety performance and stability of the bridge are what we need to pay attention to and pay attention to. [0003] The number of bridges under construction and already built in my country has exceeded one million, and there are bridges in various ter...

AI Technical Summary

Problems solved by technology

At present, most of the bridges in our country take measures to resist earthquakes, which is to install reinforced concrete stoppers on both sides of the top of the pier cap beam. This method can limit the transverse displacement of the upper girder to a certain extent, but it is easy to cause local damage during collisions. damage, and does not have much restraint on the displacement along the bridge

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