000009507 001__ 9507
000009507 005__ 20141205150212.0
000009507 04107 $$aeng
000009507 046__ $$k2008-10-12
000009507 100__ $$aBehmanesh, Iman
000009507 24500 $$aEvaluation of Coefficient and Equivalent Linearization Method of FEMA-440 for Soil-Structure Systems

000009507 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009507 260__ $$b
000009507 506__ $$arestricted
000009507 520__ $$2eng$$aIn recent years, Nonlinear Static Procedures (NSPs) have been attracted numerous researchers. The purpose of developing these methods is to predict the nonlinear demands of structures in a simple way with an acceptable accuracy. The whole MDOF structure converts to an equivalent nonlinear SDOF via pushover analysis and the nonlinear displacement of this SDOF system approximates approximately the nonlinear displacement of the whole structure. In order to find the nonlinear displacement of SDOF system varied methods are proposed in which Coefficient Method and Equivalent Linearization Method are the most applicable ones. It could be referred to FEMA-273, FEMA-356, and ATC-40 as the pioneer documents on this issue. It was also presented in FEMA-450 in design procedures. However, the aforementioned procedures were modified in FEMA-440 by analyzing a fixed base SDOF through 20 ground motions recorded at each site class categorized by FEMA-450. Moreover, the effect of Soil Structure Interaction on nonlinear demands in NSPs was discussed more elaborately than previous documents. As it was mentioned, since all the optimizations of FEMA-440 were performed for a SDOF model fixed at its base, its accuracy for soil structure system should be evaluated. In this study all the analysis were done in response spectra format for key influential non-dimensional parameters in soil-structure systems in order to make the result more comprehensive and applicable for wide ranges of ordinary structures and soil conditions.

000009507 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009507 653__ $$aSoil Structure Inertial Interaction, Nonlinear Analysis, Equivalent Linearization, Coefficient Method, FEMA-440.

000009507 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009507 720__ $$aBehmanesh, Iman$$iKhoshnudian, Faramarz
000009507 8560_ $$ffischerc@itam.cas.cz
000009507 8564_ $$s408673$$uhttps://invenio.itam.cas.cz/record/9507/files/08-02-0006.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 08-02-0006.
000009507 962__ $$r9324
000009507 980__ $$aPAPER