Beam type elastic seismic mitigation and isolation support

Abstract

The invention relates to a beam type elastic seismic mitigation and isolation support, and belongs to the technical field of anti-seismic supports. The beam type elastic seismic mitigation and isolation support comprises an upper connecting plate fixedly connected with a main body structure and located at the top end, a lower connecting plate located at the bottom end, an upper connecting block, a lower connecting block, an upper bent arc-shaped beam, a lower bent arc-shaped beam, a beam side rubber pad, a beam end connecting piece, an upper rubber pad, a lower rubber pad, an upper sliding contact steel panel and a lower sliding contact steel panel. The provided beam type elastic seismic mitigation and isolation support has the vertical shock absorption capacity, can limit the maximum vertical displacement, can allow free movement between an upper main body structure and a lower main body structure during a horizontal earthquake and can generate large horizontal displacement so as to realize shock isolation and shock absorption effects; is simple in structure, low in manufacturing cost and easy to maintain and high in practicability, and can effectively reduce the seismic response of the structure.

Description

technical field [0001] The invention relates to a beam-type elastic shock-absorbing and isolating support, which belongs to the technical field of anti-seismic supports. Background technique [0002] With the development of technology, the size and height of civil construction and bridge engineering are increasing, and the disasters caused by earthquakes are becoming more and more serious. It is necessary to carry out shock absorption and isolation design before construction. The purpose of seismic isolation is to separate the structure or components from the movement of the ground or the support, and to block the transmission path of seismic energy; shock absorption is to accelerate the consumption of seismic energy under the reciprocating action caused by the earthquake by increasing damping, thereby reducing the earthquake of the upper structure. reaction. In the prior art, this separation is generally achieved by increasing the flexibility of the system and providing a...

AI Technical Summary

Problems solved by technology

The laminated rubber shock-isolation bearing basically has no tensile capacity, and its torsional capacity is also very weak. At the same time, its maximum allowable horizontal displacement range is also small, which cannot meet the actual requirements of the project in some cases. At the same time, the rubber shock-isolation support The seat will prolong the natural vibration period and frequency of the whole structure to a large extent, and the practicability on soft ground is not enough

Most of the commonly used bearings generally have weak vertical shock absorption capacity, and the lower displacement limit of horizontal earthquakes is small, so they are prone to damage under the action of large earthquakes

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