000010097 001__ 10097
000010097 005__ 20141205154143.0
000010097 04107 $$aeng
000010097 046__ $$k2008-10-12
000010097 100__ $$aGoel, Rakesh K.
000010097 24500 $$aAnalysis of Ordinary Bridges Crossing Fault-Rupture Zones

000010097 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010097 260__ $$b
000010097 506__ $$arestricted
000010097 520__ $$2eng$$aRooted in structural dynamics, two procedures for estimating peak responses of linearly-elastic “ordinary” bridges crossing fault-rupture zones are presented: response spectrum analysis (RSA) procedure and a static analysis (SA) procedure. These procedures estimate the peak response by superposing peak values of quasi-static and dynamic responses. The peak quasi-static response in both procedures is computed by static analysis of the bridge with peak values of all support displacements applied simultaneously. In the RSA procedure, the peak dynamic response is estimated from the dynamic analysis including all significant modes, which is simplified in the SA procedure to static analysis of the bridge for appropriately selected forces. Both procedures are shown to provide estimates of peak response that are close to those from the “exact” response history analysis. Furthermore, it is shown that usually only one mode – the most dominant mode – is sufficient in the RSA procedure. These procedures utilize the “effective” influence vector that differs from that for the spatially-uniform excitation. Furthermore, the RSA procedure uses the response spectrum for the reference support excitation (including permanent offset of the ground due to fault rupture) that differs from the standard California Department of Transportation (CALTRANS) spectrum. The presented procedures idealize the spatially varying support excitation by proportional multiple-support (PMS) excitation in which motions at various supports of the bridge crossing a fault-rupture zone are proportional to the motion at a reference location.

000010097 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010097 653__ $$aBridges, Dynamic Response, Earthquake Engineering, Ground Motion, Linear Analysis, Seismic Analysis

000010097 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010097 720__ $$aGoel, Rakesh K.$$iChopra, Anil K.
000010097 8560_ $$ffischerc@itam.cas.cz
000010097 8564_ $$s180532$$uhttps://invenio.itam.cas.cz/record/10097/files/05-01-0044.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-01-0044.
000010097 962__ $$r9324
000010097 980__ $$aPAPER