000011685 001__ 11685
000011685 005__ 20141205155936.0
000011685 04107 $$aeng
000011685 046__ $$k2008-10-12
000011685 100__ $$aSingh, Priyanshu
000011685 24500 $$aSoil-Structure Interaction Analysis for Buried Structures in Soft, Sloping Soils-Bart San Francisco Transition Structure

000011685 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011685 260__ $$b
000011685 506__ $$arestricted
000011685 520__ $$2eng$$aA case history is presented for soil-structure interaction (SSI) analyses of the San Francisco Transition Structure (SFTS), a massive rigid structure which is part of the BART Transbay Tube (TBT) system in California. A methodology was developed to study the complex SSI problem for the SFTS. This methodology may be applicable for relatively large, buried structures in soft soils and sloping ground susceptible to movement during the design earthquake. The SSI studies included 3D SASSI analyses to develop far-field impedances due to dynamic vibrations, and FLAC 3D analyses to develop near-field nonlinear springs. A methodology was developed to use the near-field spring and far-field impedances obtained from SSI analyses in a global model that included the SFTS as well as the TBT that connects to it. Displacement time histories to drive the global model were also developed as part of this study. Scatter motions were obtained at the base of the SFTS as well as along the TBT. An approach of transitioning of the scatter motions to the free-field motions along the TBT was developed. Permanent drifts due to movement of the slope around the SFTS were incorporated in the development of ground motions.

000011685 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011685 653__ $$asoil-structure interaction, impedance, springs, ground motion, FLAC, SASSI

000011685 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011685 720__ $$aSingh, Priyanshu$$iChen, Weiyu$$iVahdani, Shahriar
000011685 8560_ $$ffischerc@itam.cas.cz
000011685 8564_ $$s275702$$uhttps://invenio.itam.cas.cz/record/11685/files/04-02-0101.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 04-02-0101.
000011685 962__ $$r9324
000011685 980__ $$aPAPER