Three-dimensional seismic isolating pedestal with multiple defence lines

Abstract

The invention provides a three-dimensional seismic isolating pedestal with multiple defence lines. The three-dimensional seismic isolating pedestal with multiple defence lines comprises a pedestal bottom plate, at least three supporting columns and a top plate, wherein the bottom end of each supporting column is fixed on the pedestal bottom plate; the top plate is used for placing an object to be protected; a top box is fixed on the bottom surface of the top plate; a multi-defence line horizontal seismic isolating unit is horizontally connected between the side surface of each supporting column and the corresponding side surface of the top box; a multi-defence line vertical seismic isolating unit is vertically connected between the top end of each supporting column and the bottom surface of the top box; each of the multi-defence line horizontal seismic isolating units and the multi-defence line vertical seismic isolating units is provided with a plurality of pieces of thin and long soft steel and a plurality of pieces of short and thick soft steel; the first defence line is formed by the thin and long soft steel and the second defence line is formed by the short and thick soft steel; and when a structure which is subjected to seismic isolating is at different seismic action levels, a plurality of seismic isolating defence systems can be arranged on a supporting seat independently, the working states and the control levels of the seismic isolating supporting seat at different levels are different, so that the three-dimensional seismic isolating pedestal with the multiple defence lines has higher adaptability.

Description

technical field [0001] The invention relates to the field of shock absorption and energy consumption of buildings, equipment and cultural relics in collections, in particular to a three-dimensional shock-isolation pedestal with multiple lines of defense. Background technique [0002] China is located between two major seismic belts - the Eurasian seismic belt and the circum-Pacific seismic belt, and is one of the countries most severely affected by earthquakes in the world. Historically, strong earthquakes of magnitude 6 or above have occurred many times in the Yangtze River Delta and the Pearl River Delta. In the Beijing-Tianjin-Bohai Rim region, in the past 300 years, an average of 7 magnitude or more earthquakes have occurred every 44 years. With the acceleration of urbanization, a large amount of national wealth is rapidly concentrated in cities and urban agglomerations. And more than one-third of my country's built or planned urban agglomerations are located in areas w...

AI Technical Summary

Problems solved by technology

[0003] Although a lot of progress has been made in theoretical research in this area, according to different earthquake levels, when the isolated structure is at different isolation levels, the seismic isolation bearings of the multi-channel fortification system with different control requirements still have to be solved. in the undeveloped stage

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