Limiting seismic isolation cushion support

Abstract

The invention provides a limiting seismic isolation cushion support. A limiting device for preventing a seismic isolation cushion from sliding is disposed on an upper buttress and / or a lower buttress of a building. The limiting device is capable of fully making use of the fine forming property of concrete, a seismic isolation cushion limiting area is formed through a formwork, only component casting flatness needs to be guaranteed, the seismic isolation cushion can be directly rested in the limiting area, reservation and post-installation of bolts are not needed, time and materials are saved, installation construction is simplified greatly, and post-maintenance of the seismic isolation cushion is facilitated.

Description

technical field [0001] The invention relates to a vibration isolation device used in buildings and bridges, in particular to a position-limiting vibration isolation pad support. Background technique [0002] Earthquakes cause great damage and loss to people and buildings. The traditional method is to rely on the strength and stiffness of the structure itself to resist earthquakes, and rely on the deformation and damage of structural components to consume the energy introduced into the building. This method is often sometimes It is impossible to prevent the collapse of a large earthquake, and the damage of buildings in an earthquake is often huge, which greatly exceeds the tolerance of the society and the owners. [0003] Building seismic isolation pad is to break the foundation pile of the original building, put the seismic isolation pad on it, and change the original solid foundation into a flexible foundation. It is an advanced seismic technology for buildings and has been...

AI Technical Summary

Problems solved by technology

[0004] The conventional seismic isolation pad installation method adopts the method of pre-embedded steel plates and reserved bolt holes in the upper and lower piers respectively, which is labor-intensive, material-intensive, costly, and requires high construction accuracy, and often cannot guarantee quality and is difficult to install. Repair adjustment

This fixed connection of bolts also makes it difficult to dismantle, replace, and overhaul the vibration isolation pad, and at the same time restricts the plane displacement of the vibration isolation pad, forming a connection form between the hinged joint and the fixed support, which is different from the calculation model. The calculated results are in poor agreement with the experimental results

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