Basic Research on Inverse Design for Seismic-isolated and Response-controlled Structures
This paper presents an inverse design method of SDOF structures through performance-based diagrams which can easily estimate the suitable design parameters for various dampers to satisfy the target design performances to be specified for a given earthquake ground motion. The diagrams are constructed based on the concept of separated variables of the energy spectrum. The concept is in engineering sense that a response energy spectrum of a nonlinear structure subjected to a given ground motion seqS(T),h0,μv,pv,μd,Pd can be expressed by the product between the corresponding elastic response spectrum S(T) and the empirical formulas t(h0,μv,pv,μd,Pd). The formulas are derived by the statistic for the results of the time history simulations over a great number of earthquake ground motions, in which the adopted variables are viscous damping ratios, ductility factors, bilinear coefficients, relief velocity ratios and bilinear viscous coefficient ratios, etc. The accuracy of the parameters estimated by the performance-based diagrams is verified by a number of time history simulations.
separate variables of energy spectrum performance-based diagrams responsespectrum elasto-plastic damper bilinear type oil damper
Ippei HATA Shinji ISHIMARU Takeshi FURUHASHI
College of Science and Technology, Nihon Univ., Tokyo, Japan Dept. of Architecture, College of Science and Technology, Nihon Univ., Tokyo, Japan
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）