000010706 001__ 10706
000010706 005__ 20141205155755.0
000010706 04107 $$aeng
000010706 046__ $$k2008-10-12
000010706 100__ $$aLi, Yu
000010706 24500 $$aEffect of Curvature and Seismic Excitation Characteristics on the Seismic Response of Seismically Isolated Curved Continuous Bridge

000010706 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010706 260__ $$b
000010706 506__ $$arestricted
000010706 520__ $$2eng$$aAccording to the characteristic of seismically isolated curved beam bridge design, the bidirectional nonlinear behavior of lead rubber bearing is taken into account by using two orthogonal nonlinear spring element. Reasonable strong seismic motion records are selected. Considering the effect of characteristic of curved beam bridge, the FEA software is used to do the nonlinear time history analyses for the curved beam bridges with and without lead rubber bearing under bidirectional seismic motions. The study results are obtained as follow: 1) vibration models of curved beam bridge are correlative with the connection between pier and beam and the natural period of seismic isolated curved beam bridge can not be affected by the radius of curvature; 2) the principal natural period of the seismically isolated curved beam bridge can be prolonged to avoid the predominant period of seismic motions. Therefore, the seismic response of the seismically isolated curved bridge can be reduced; 3) the seismic response of structure is greatly discrepant under different seismic motions. Especially, when the duration of seismic motion prolongs or the natural period of seismically isolated bridge approaches to the predominant period of seismic motion, the seismic response of structure can be enhanced.

000010706 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010706 653__ $$alead rubber bearing (LRB), seismic response, curved continuous bridge

000010706 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010706 720__ $$aLi, Yu$$iZhong, Tieyi$$iYang, Fengli$$iYan, Guiping
000010706 8560_ $$ffischerc@itam.cas.cz
000010706 8564_ $$s150668$$uhttps://invenio.itam.cas.cz/record/10706/files/06-0012.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 06-0012.
000010706 962__ $$r9324
000010706 980__ $$aPAPER