The Staged Seismic Isolation Study Of A New SMA-LRB In High-rise

This paper mainly designs and develops a new Shape Memory Alloys -Laminated Rubber Bearing(for short: SMA-LRB), and discusses its subsection seismic isolation theory and seismic isolation performance of high-storey structure. First, we summarize the application of SMA in vibration control areas. Then, we do test on SMA's mechanical performance, after detailed analysis of test data, we utilize the pseudo elasticity of SMA to design a new SMA-LRB, build up its corresponding model, and primarily put forward its design method. In order to demonstrate the feasibility of SMA - LRB, experiments under different conditions are carried out for SMA-LRB and common rubber bearing, from the results the effects of horizontal displacement to bearings are analyzed. Based on the results, dynamic response analysis models of high-storey subsection seismic isolation structure are built, also we make model analysis and emulate analysis to subsection seismic isolation with SMA-LRB and with common rubber bearing, thus we find that using SMA-LRB and adopting subsection seismic isolation form can effectively control the dynamic response of high-storey structure under strong earthquake.