Energy Analysis of Inter-story Isolation System

摘要：

　　Equation of motion of inter-story isolation system is established, and frequency ratio, mass ratio as well as damping ratio of inter-story isolation system are then optimized based on random ground motion model, where base shear of inter-story isolation system is used as the optimization object function.Furthermore, the accumulated and instantaneous energy response equations of inter-story isolation system based on energy bal ance principle are founded.Control mechanism of inter-story isolation system is systematically investigated from the perspective of energy.Numerical simulation results indicate that for a small mass ratio, inter-story isolation system performs similarly to structure-TMD system, and the transfer energy of superstructure as well as the elastic energy of substructure are large.When the mass ratio is high, the performance of inter-story i solation system is close to base isolation system with small input energy.In the case of 1 <μ<4, the quantity of input energy, transfer energy and elastic energy of inter-story isolation system are between structure-TMD system and base isolation system.

作者: Xiangxiu Li Ping Tan Liangkun Liu Dewen Liu Fulin Zhou

作者单位: School of Civil Engineering, Beijing University of Technology, Beijing, China Earthquake Engineering Research & Test Center, Guangzhou University, Guangzhou, China School of Civil Engineering, Beijing University of Technology, Beijing, China; Earthquake Engineerin

会议类型: 国际会议

会议名称: The 5th International Symposium on Innovation & Sustainability of Structures in Civil Engineering (ISISS2013)(第五届创新和可持续发展土木工程结构国际学术研讨会)

会议地点: 哈尔滨

会议语种:英文

页码: 566-571

在线出版日期: 2013-07-06（万方平台首次上网日期，不代表论文的发表时间）