000015593 001__ 15593
000015593 005__ 20161115135324.0
000015593 04107 $$aeng
000015593 046__ $$k2013-06-12
000015593 100__ $$aMandal, T.
000015593 24500 $$aA Comparative Study of Seismic Fragility Estimates Using Different Numerical Methods

000015593 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000015593 260__ $$bNational Technical University of Athens, 2013
000015593 506__ $$arestricted
000015593 520__ $$2eng$$aSeismic fragility estimations constitute the primary part of the probabilistic seismic safety assessment of important structures, such as nuclear containments, dams, important bridges, etc. The seismic fragility of a structure is expressed through a family of ‘fragility’ curves, which plot the conditional probabilities of failure against varying intensities of the seismic hazard. The failure probability of the structure can be defined for multiple limit states. Over the last three decades, various numerical techniques have been developed to estimate the seismic fragility of structures. Among these, three prominent methods selected for the present study are the ones proposed by Kennedy et al. [1], Shinozuka et al. [3] and Ellingwood et al. [4]. These methods vary in terms of the numerical analysis of analytical data in estimating the seismic fragility of a structure. The present work applies these three different fragility analysis techniques to the seismic fragility estimation of a nuclear containment structure and compares the results obtained from the three different methods. The inner containment structure of an Indian PHWR is used for this case study. The results obtained show that the method proposed by Shinozuka et al. provides the most accurate fragility estimations; however, it is also the most computation intensive. The conventional method proposed by Kennedy et al. provides the least accurate results and needs to use an updated uncertainty database.

000015593 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015593 653__ $$aSeismic Fragility, Incremental Dynamic Analysis, Nuclear Power Plant, Primary Containment, Probabilistic Safety Assessment.

000015593 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000015593 720__ $$aMandal, T.$$iPujari, N.$$iGhosh, S.
000015593 8560_ $$ffischerc@itam.cas.cz
000015593 8564_ $$s74460$$uhttp://invenio.itam.cas.cz/record/15593/files/1122.pdf$$yOriginal version of the author's contribution as presented on CD, section: CD-RS 22 SEISMIC PERFORMANCE EVALUATION UNDER UNCERTAINTY
.
000015593 962__ $$r15525
000015593 980__ $$aPAPER