Design and seismic response analysis for multiple buildings with large podium using inter-story isolation technology
Zhou Ying1 Chen Peng1 Lu Daoyuan2 Wang Jingyu2
1. State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China
2. East China Architectural Design and Research Institute, Shanghai 200002, China
Abstract：Considering the adverse effect on seismic performance caused by abrupt story stiffness change and the metro vibration, inter-story isolation technology using thick rubber bearings is adopted in the design of transfer floor for a multi buildings with large podium. Calculation models adopting rigid transfer floor and inter-story isolation transfer floor were established separately. The isolation effect was verified by comparing the responses of the two models under moderate seismic excitation. And the safety of isolation scheme was checked by calculating the maximum displacement of bearings and tensile stress under maximum considered earthquake. Results indicate that adopting inter-story technology using thick rubber bearings as transfer floor is a favorable scheme for multiple buildings with large podium.
