THE SEISMIC RESPONSE CHARACTERISTICS OF A NEW STRUCTURAL CONFIGURATION
In this paper a new kind of structural configuration, named passive mega-sub controlled structure (PMSCS), is presented, which is constructed by applying the structural control principle into structural configuration itself, to form a new structure with obvious response self-control ability. In the analysis of PMSCS the equations of motion of the seismically excited system are developed. The seismic response control effectiveness of the proposed PMSCS under stationary and nonstationary random processes was evaluated by comparing its seismic response with the response of its conventional (uncontrolled) mega-sub structure counterpart. A parametric study of the relative stiffness between the mega-frame and substructure of the PMSCS is presented and discussed. The region over which these structural characteristics yield the optimum seismic response control of the PMSCS is identified and serves as a very useful design tool for practitioners. The results show that the proposed PMSCS offers an effective means of controlling the seismic displacement and acceleration response of tall/super-tall mega-systems.
Passive mega-sub controlled structure seismic excitation structure response controlling effectiveness relative stiffness
Xunan Zhang Xiangjun Qin Shel Cherry
Professor, Department of Civil Engineering, Northwestern Polytechnical University , Xian, China. PhD Student, Department of Civil Engineering, Northwestern Polytechnical University, Xian, China Professor, Department of Civil Engineering, the University of British Columbia, Vancouver, Canada
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）