Inelastic Analysis Techniques in Seismic Evaluations
نویسنده
چکیده
The analytical methods available to the design engineer today are either dynamic time history analyses, or monotonic static nonlinear analyses, or equivalent static analyses with simulated inelastic influences. This paper suggests in addition to the inelastic time history analyses, some simplified analyses techniques based on equating the seismic demand expressed in terms of response spectra with the inelastic capacity described in terms of force-deformation characteristics. The inelastic response in terms of accelerations and maximum displacements can be evaluated accurately, for a single-degree-of-freedom (s.d.o.f.) system, or approximately for a multi-degrees-of-freedom (m.d.o.f.) system. Such method is similar with the proposed technique for evaluation of response by NEHRP, 1996 to be released in the future codes
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