000009821 001__ 9821
000009821 005__ 20141205153157.0
000009821 04107 $$aeng
000009821 046__ $$k2008-10-12
000009821 100__ $$aDatta, Debarati
000009821 24500 $$aEstimating Park-Ang Damage Index Using Equivalent Systems

000009821 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009821 260__ $$b
000009821 506__ $$arestricted
000009821 520__ $$2eng$$aThe performance-based seismic design (PBSD) philosophy aims at achieving a reliable performance from a structure for a given seismic hazard. There are two primary concerns of PBSD – a proper quantification of the uncertainties associated in the whole design process, and a better characterization of the potential structural damage. A probabilistic seismic hazard analysis (PSHA) and the use of structural parameters better correlated to seismic damage are the preferred tools for seismic demand estimation as per PBSD. For the present work, the Park-Ang damage index is selected as the seismic damage measure since it is considered to be one of the most realistic measures of structural damage. Hazard response spectra (probabilistic or deterministic) are the most common mode of characterizing the seismic hazard at a site, and these spectra represent the demand on single degree oscillators. In order to use these spectra for estimating the demand on a multi-degree of freedom system (MDOF), an equivalent single degree of freedom (ESDOF) system-based method is proposed here. The proposed method is tested on three two-dimensional steel moment resisting frames under several ground motion scenarios. For each frame, demands, in terms of Park-Ang damage index, on the corresponding ESDOF system are obtained under different ground motion scenarios and are compared with the actual demands on the MDOF structure. The accuracy of the estimation is judged through bias factor statistics for these three buildings, and the variation of effectiveness of the procedure is studied. Finally, the prospective use of these bias factors in reliability based design of structures considering Park-Ang damage index is discussed.

000009821 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009821 653__ $$aPark-Ang damage index, static pushover analysis, equivalent system methodology, bias factor, reliability-based design

000009821 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009821 720__ $$aDatta, Debarati$$iGhosh, Siddhartha
000009821 8560_ $$ffischerc@itam.cas.cz
000009821 8564_ $$s186638$$uhttps://invenio.itam.cas.cz/record/9821/files/05-01-0291.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-01-0291.
000009821 962__ $$r9324
000009821 980__ $$aPAPER