000013511 001__ 13511
000013511 005__ 20161114165557.0
000013511 04107 $$aeng
000013511 046__ $$k2011-05-25
000013511 100__ $$aRamanathan, K.
000013511 24500 $$aFragility Curves for Typical Multispan Simply Supported Bridge Classes in Moderate Seismic Zones: Pre- and Post-Seismic Design Considerations

000013511 24630 $$n3.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013511 260__ $$bNational Technical University of Athens, 2011
000013511 506__ $$arestricted
000013511 520__ $$2eng$$aMultispan simply supported concrete and steel girder bridges are common bridge types in Central and Southeastern United States. Probabilistic seismic risk assessment of these bridge classes is essential due to an increased awareness of the seismic hazard in the region. This study focuses on developing and comparing fragility curves for seismically and non-seismically designed bridges that are common in the region. Detailed three dimensional nonlinear analytical models, which account for the nonlinear behavior of the columns, girders and abutments, are developed in OpenSEES platform. Unlike most previous studies, the fragility curves are developed considering a wide range of material and geometric uncertainties in the stochastic analyses coupled with considerations of vulnerability of multiple components in defining bridge system performance. The results provide insight into the level of uncertainty introduced in the analysis of fragility curves for portfolios of bridges with the use of three dimensional analytical models and nonlinear time history analyses. Component and system fragility curves are obtained and are compared for the case of non-seismically and seismically designed bridge classes and with those currently used in HAZUS-MH.

000013511 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013511 653__ $$aFragility curves, analytical modeling, seismic design, non-seismic design, bridge classes, HAZUS-MH comparison.

000013511 7112_ $$aCOMPDYN 2011 - 3rd International Thematic Conference$$cIsland of Corfu (GR)$$d2011-05-25 / 2011-05-28$$gCOMPDYN2011
000013511 720__ $$aRamanathan, K.$$iPadgett, J.$$iDesRoches, R.
000013511 8560_ $$ffischerc@itam.cas.cz
000013511 8564_ $$s2443657$$uhttps://invenio.itam.cas.cz/record/13511/files/217.pdf$$yOriginal version of the author's contribution as presented on CD, section: MS 05 Analysis Methods for the Seismic Design and Assessment of Bridges.
000013511 962__ $$r13401
000013511 980__ $$aPAPER