000019328 001__ 19328
000019328 005__ 20170118182311.0
000019328 04107 $$aeng
000019328 046__ $$k2017-01-09
000019328 100__ $$aSeo, Junwon
000019328 24500 $$aSeismic Fragility Examination of Simply Supported Curved Prestressed Concrete Bridge Portfolios

000019328 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019328 260__ $$b
000019328 506__ $$arestricted
000019328 520__ $$2eng$$aThis paper examines the seismic vulnerability of single-span, simply supported, curved, prestressed concrete (PSC) I-girder bridge portfolios with various characteristics using fundamental fragility concepts that have been commonly used. Experimental design technique was used as a statistical means of comparison between varying bridge configurations, ultimately producing a wide variety of hypothetical PSC I-girder bridges. Structural design of each bridge was made according to the guidelines specified by the AASHTO LRFD Bridge Design Specifications. To examine seismic vulnerability to seismic excitations, non-linear time history analyses (NLTHAs) was conducted using multiple synthetic ground motions. Response of critical components was extracted for fragility analysis and comparison. Fragility curves were created via probabilistic seismic demand models (PSDM) following established techniques. The preliminary fragility data were analyzed to determine the effects of the varying design parameters on seismic vulnerability of the bridge portfolios. The results found that the shorter span bridges with a tighter radius of curvature are less sensitive to seismic excitations than those with straighter decking.

000019328 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019328 653__ $$aCurved Bridges, Prestressed Concrete I-Girders, Seismic Analysis, Vulnerability, Sensitivity, Ground Motions

000019328 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019328 720__ $$aSeo, Junwon$$iRogers, Luke
000019328 8560_ $$ffischerc@itam.cas.cz
000019328 8564_ $$s848441$$uhttps://invenio.itam.cas.cz/record/19328/files/3395.pdf$$yOriginal version of the author's contribution as presented on USB, paper 3395.
000019328 962__ $$r16048
000019328 980__ $$aPAPER