000010039 001__ 10039
000010039 005__ 20141205154139.0
000010039 04107 $$aeng
000010039 046__ $$k2008-10-12
000010039 100__ $$aGao, Yong
000010039 24500 $$aSoil-Structure-Water Interaction of  a Cable-Stayed Bridge under Seismic Excitation

000010039 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010039 260__ $$b
000010039 506__ $$arestricted
000010039 520__ $$2eng$$aSeismic performance of a long-span cable-stayed bridge is studied with soil-structure-water interaction being included in this paper. Soil-pile interaction is modeled using individual impedance matrix to replace piles below the mudline. Water-structure interaction is simulated with added mass and damping coefficients for pile foundations of the bridge. Hydrodynamic added mass and damping coefficients of the pile caps are obtained through the concise closed form expressions which were deduced by Bhatta and Rahman (2003). Morison Equation is applied to calculate the added mass and damping coefficients of a single pile. Hydrodynamic grouping effects of grouped piles are considered with grouping effect coefficients. Nonlinear time history analysis is conducted with the finite element model of the bridge. The analysis results show that hydrodynamic effects have no significant influence on the maximum internal force responses of towers and their underlying piles. However, hydrodynamic effects might increase the maximum internal force responses of piers’ underlying piles about 10~20%. Therefore, it is necessary to consider water-structure interaction in seismic analysis of long-span cable-stayed bridges.

000010039 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010039 653__ $$aSoil-structure interaction, Structure-water interaction, Morison Equation, FFT, Cable-stayed bridges, Seismic analysis

000010039 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010039 720__ $$aGao, Yong$$iYuan, Wancheng$$iJin, Xiaoguang
000010039 8560_ $$ffischerc@itam.cas.cz
000010039 8564_ $$s281968$$uhttps://invenio.itam.cas.cz/record/10039/files/14-0189.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 14-0189.
000010039 962__ $$r9324
000010039 980__ $$aPAPER