000010163 001__ 10163
000010163 005__ 20141205154148.0
000010163 04107 $$aeng
000010163 046__ $$k2008-10-12
000010163 100__ $$aHan, Qiang
000010163 24500 $$aStudy on Shaking Table Tests of Isolated Bridge Model with LRB

000010163 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010163 260__ $$b
000010163 506__ $$arestricted
000010163 520__ $$2eng$$aWith the growth of the application of the seismic isolation technique to civil structures, a large variety of isolation systems has been developed during the past several decades. In order to investigate the vibration properties and isolated effect of continuous girder isolated bridges with lead rubber bearings (LRB) under multi-directional excitation, the simulated earthquake test of a seismically isolated bridge model consisting of two-span continuous deck is carried out on a shaking table. The acceleration response, displacement response in the deck, and restoring force relationship and vertical deformation of LRB are tested and analyzed in different earthquake intensity excitation. The isolated bridge stability will be secure and good isolation effect will be obtained under minor earthquake excitation if the design for LRB is reasonable. The response and relativity of various effect of seismically isolated bridge are tested and analyzed in multi-directional earthquake excitation. As a result, deck acceleration almost is equal on condition that unidirectional or bi-directional earthquake wave input, but deck acceleration is increase when input vertical earthquake wave. Comparison with unidirectional earthquake wave input, deck displacement is increase when bi-directional horizontal earthquake wave input, however, deck displacement is almost invariable when input vertical earthquake wave simultaneously. Horizontal force-deformation relationship in orthogonally horizontal direction and vertical force characteristic of LRB has been studied. Some reasonable and valuable conclusions are obtained to design of continuous girder isolated bridges.

000010163 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010163 653__ $$ashaking table test, seismic isolation, bridge model, lead rubber bearings, multi-directional earthquake

000010163 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010163 720__ $$aHan, Qiang$$iDu, Xiuli$$iLiu, Jingbo
000010163 8560_ $$ffischerc@itam.cas.cz
000010163 8564_ $$s845451$$uhttps://invenio.itam.cas.cz/record/10163/files/12-01-0187.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 12-01-0187.
000010163 962__ $$r9324
000010163 980__ $$aPAPER