Resetting bridge baffle block

Abstract

The invention discloses a resetting bridge baffle block. The resetting bridge baffle block includes a contact steel plate; the right side of the contact steel plate is welded to one ends of a plurality of guide rods; the other end of each guide rod passes through a corresponding hole formed in a fixing steel plate and is connected by a bolt; each guide rod between the contact steel plate and the fixing steel plate is sleeved with a spring; an outer side of the fixing steel plate is welded to a stiffening plate; the fixing steel plate is welded to a connection steel plate; the connection steel plate and the stiffening plate are welded; and the connection steel plate is anchored on a top surface of a lower structure or a bottom surface of an upper structure of a bridge through connection bolts. The resetting bridge baffle block is skillful in concept, is simple to manufacture, is clear in stress, can relieve impact of a horizontal action such as an earthquake on a main beam and a baffle block, and can reset the main beam after the horizontal action is finished.

Description

technical field [0001] The invention relates to the technical field of bridge stoppers, in particular to a resettable bridge stopper. Background technique [0002] Block is a seismic construction measure often used in bridge design. It is usually set on the top surface of the bridge substructure or the bottom surface of the superstructure. Its purpose is to limit the excessive horizontal displacement of the bridge superstructure. Practice has proved that the bridge stopper can not only effectively limit the horizontal displacement of the main girder under normal use, but also prevent the excessive horizontal displacement of the main girder under the action of an earthquake, and further avoid unrecoverable earthquake damage such as falling beams. [0003] Conventional bridge blocks are made of concrete, and are usually designed as rectangular or trapezoidal cross-sections according to the different cross-sectional forms of the main girder. There are three important defects i...

AI Technical Summary

Problems solved by technology

There are three important defects in this kind of bridge block: one is that the rigidity is relatively large, and it will produce a large impact force on the main girder under the action of an earthquake, causing a certain degree of damage to the main girder; the other is that the ductility is poor. The bridge block is very prone to brittle failure, such as shearing, breaking, etc.; the third is that it cannot be reset. When the block is subjected to a large impact force or undergoes a large deformation, it does not have a reset function

[0004] Generally speaking, the design of the existing bridge stoppers is relatively rough, and there are great safety hazards under the horizontal action such as earthquakes. Therefore, it is necessary to innovate the existing bridge stoppers and develop a new type of bridge that can adapt to earthquakes and other horizontal actions Stoppers

Images