SEISMIC RESPONSE OF A BASE-ISOLATED STRUCTURE: A NON LINEAR SPECTRAL APPROACH
سال انتشار: 1374
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 101
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شناسه ملی سند علمی:
SEE02_107
تاریخ نمایه سازی: 11 مهر 1400
چکیده مقاله:
A method is proposed for analysing the seismic response of a non-linear dynamic base-isolated structure. The method is based on a new, computationaly efficient, spectral method which is formulated in the frequency domain. The spectral (inite element technique proposed in this paper is capable of taking into account the non-linear damping behaviour of different isolation devices, as well as the material damping associated with structural members. The method iterates to obtain the response of the system in the frequency domain, returning to the time domain at each iteration to calculate nonlinearties which cannot be transformed to the frequency domain. Using a computer program, the proposed formulation has been extended to derive the dynamic response of a six story base-isolated structure under an earthquake excitation.
نویسندگان
a.m horr
Ph.D. Student, Dept. of Civil & Mining Engrs, University of Wollongong, Wollongong, NSW ۲۵۲۲, Australia
l.c schmidt
Professor, Dept. of Civil & Mining Engrg., University of Wollongong, Wollongong, NSW ۲۵۲۲, Australia