INVESTIGATION AND CONSIDERATION OF SEISMIC ISOLATION AND ENERGY DISSIPATION STRUCTURES IN TOHOKU EARTHQUAKE

As one member of the Chinese and Japanese expert investigatory group, the author had attended the earthquake hazard investigation activities which were organized by China-Japan Technique Committee on Building Structures during June 14th to 18th, 2011. An on-the-spot investigation had been carried out on earthquake calamities brought by the Pacific coast of Tohoku Earthquake on March 11th in Sendai and emphatically the performance of seismic isolation and energy dissipation structures in this magnitude 8.8 earthquake. This paper summarizes seismic isolation and energy dissipation techniques and the basic situation of their application in Japan. The performance of the structures which used these techniques in this earthquake is emphatically introduced. Some conclusions and experience on the application of seismic isolation and energy dissipation structures are also given.