Metal Yield Energy Dissipation Type Seismic Isolation Device and Installation Method for Sub-steps

Abstract

A stepwise metal yield energy-dissipating isolation device and a mounting method thereof are provided; a natural rubber support (1) is fixed in a center area between an upper connecting plate (2) and a lower connecting plate (3) that are parallel to each other, and four U-shaped steel damper (4) units are arranged around the upper connecting plate (2) and the lower connecting plate (3). The U-shaped steel dampers (4) capable of providing stepwise yield are added to the natural rubber support (1) between the upper connecting plate (2) and the lower connecting plate (3). The mounting method comprises the steps of assembling an isolation device, placing the isolation device in an actual structure, fixedly connecting the upper connecting plate (2) and the lower connecting plate (3) of the device respectively to an upper embedded plate (8), a lower embedded plate (9) and an embedded casing (10), welding to fix the upper embedded plate (8) and the lower embedded plate (9) respectively to reinforcement cages of upper and lower buttresses (6) and (7), and performing one-piece casting.

Description

technical field [0001] The invention relates to engineering structure shock absorption and isolation technology, which is mainly used for energy consumption and shock isolation of building structures. Background technique [0002] my country is one of the countries with frequent earthquakes and the most serious earthquake disasters in the world. In recent years, with the development of buildings tending to be taller and more complex, the requirements for the ability of building structures to resist external loads such as earthquakes have also become higher and higher. More scholars have begun to pay attention to the development of shock absorption and isolation technology. Many earthquake experiences at home and abroad have shown that the use of seismic isolation technology can effectively improve the seismic capacity of building structures, so that the building structure and its internal facilities will not be damaged by earthquakes; at the same time, seismic isolation is a...

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Problems solved by technology

However, with the wide application of shock isolation technology, scholars at home and abroad began to pay attention to the environmental risk of lead dampers. Japanese scholars first tried to replace metal lead with metal tin, although tin dampers have good energy dissipation performance and are non-toxic. , but tin is very expensive and uneconomical

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