Shock absorption and insulation rubber support seat of multidirectional energy-consumption bridge

Abstract

The invention relates to a shock absorption and insulation rubber support seat of a multidirectional energy-consumption bridge, so as to effectively increase the horizontal shear stiffness and the horizontal energy-consumption capability of the support seat, and the shock absorption and insulation rubber support seat has certain vertical stiffness and has strong reset capability in horizontal and vertical directions. The shock absorption and insulation rubber support seat comprises an upper support seat steel plate, a lower support seat steel plate and a rubber post, wherein the rubber post is arranged between the upper support seat steel plate and the lower support seat steel plate, corrugated steel plates are vertically arranged in the rubber post at intervals, and the plate surfaces of the corrugated steel plates form wrinkles by radial spaced annular ripples.

Description

technical field [0001] The present invention relates to bridge bearings, in particular to a multi-directional energy-consuming bridge shock-absorbing and isolating rubber bearing, which is mainly suitable for railways, highways and municipal bridges in earthquake areas, and is also suitable for bridges under near-fault earthquakes, especially Bridges with vertical seismic excitation in medium and high seismic intensity areas. Background technique [0002] With the development of social economy and the expansion of my country's traffic road network, the proportion of bridges in the line is getting higher and higher. As an important part of lifeline engineering, the bridge structure is the most vulnerable part when an earthquake disaster occurs. The introduction of seismic isolation technology can successfully solve the seismic problem of bridges. Scholars from various countries have conducted extensive and in-depth research on the shock absorption and isolation of bridge str...

AI Technical Summary

Problems solved by technology

However, rubber bearings generally have certain limitations, mainly in that the horizontal shear stiffness of rubber bearings is low, the horizontal shear yield strength is low, the energy dissipation hysteresis loop is not full, and the hysteresis performance is poor; Low rigidity, long-term compression state, slow recovery and deformation when vertical earthquake excitation, no vertical energy dissipation capacity; rubber bearing does not have vertical and horizontal self-resetting ability; rubber and steel plate contact area is small, damping Poor performance, easy to cause delamination and spalling damage of bearing under earthquake

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