000010386 001__ 10386
000010386 005__ 20141205155722.0
000010386 04107 $$aeng
000010386 046__ $$k2008-10-12
000010386 100__ $$aJia, Junfeng
000010386 24500 $$aSeismic Analyses of Long-Span Cable-Stayed Bridges Subjected to Near-Fault Pulse-Type Ground Motions

000010386 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010386 260__ $$b
000010386 506__ $$arestricted
000010386 520__ $$2eng$$aThe pulse effect of near-fault ground motions and its effect on engineering structures with fundamental period were investigated in this study. The pulse character of many near-fault ground motions and its causes were introduced briefly. Near-fault ground motions from 8 stations during 1999 Chi-Chi, Taiwan earthquake and four common-used ground motions were selected to investigate the near-fault pulse effect. Response spectrum of these ground motions illustrated that there was abundant long-period component in pulse-type near-fault ground motions. The seismic performance of a constructed long-span cable-stayed bridge was evaluated by time history analysis method. The seismic behavior of the bridge to near-fault with and without pulse effect and common-used ground motions were investigated and compared. It is concluded that pulse-type near-fault ground motions will impose more sever damage potential to engineering structures with long fundamental period. Distinct underestimation of the structural response will be presented if pulse effect of near-fault ground motion is not considered, especially for engineering structures located near an underlying causative fault. Vertical pulse-type near-fault ground shaking should be got more attention in the seismic design and performance assessment of engineering structures in the near-fault region. Parametric study indicated that there is a nearly linear relationship between PGV/PGA ratio, spectral acceleration and spectral velocity of the ground motion and structural response.

000010386 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010386 653__ $$anear-fault ground motion, pulse effect, vertical ground motion, long-span cable-stayed bridge, parametric study

000010386 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010386 720__ $$aJia, Junfeng$$iOu, Jinping
000010386 8560_ $$ffischerc@itam.cas.cz
000010386 8564_ $$s117742$$uhttps://invenio.itam.cas.cz/record/10386/files/05-02-0038.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-02-0038.
000010386 962__ $$r9324
000010386 980__ $$aPAPER