000011914 001__ 11914
000011914 005__ 20141205160000.0
000011914 04107 $$aeng
000011914 046__ $$k2008-10-12
000011914 100__ $$aTravasarou, Thaleia
000011914 24500 $$aInput Ground Motion for Long Linear Structures: The Case History of the Bart Transbay Tube

000011914 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011914 260__ $$b
000011914 506__ $$arestricted
000011914 520__ $$2eng$$aThe seismic vulnerability studies for the San Francisco Transition Structure (SFTS) of the Bay Area Rapid Transit system (BART) involved global structural dynamic analyses which modeled the response of the rigid and massive SFTS to the west and the Transbay Tube (TBT) to the east, a 5.8 km immersed railway tunnel connecting the city of Oakland to San Francisco, in California. This paper presents the approach adopted to develop input for the seismic response of the long TBT tunnel in the global analyses. The required input was in the form of 1) displacement time histories at every joint location along the entire length of the TBT, and 2) properties for the nonlinear soil springs connecting the TBT to the free field. Adopting an approach for the development of input time histories along the TBT involved addressing a number of issues relevant to the seismic response of long linear structures. These include ground motion attenuation, seismic wave incoherence, input depth, two-dimensional effects, and selection of appropriate soil models. These issues are discussed here in the context of the BART SFTS project.

000011914 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011914 653__ $$aImmersed tunnel, multiple support excitation, ground motion attenuation, site response, nonlinear soil spring, BART

000011914 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011914 720__ $$aTravasarou, Thaleia$$iChen, W.$$iSingh, P.$$iChacko, Jacob$$iVahdani, Shahriar
000011914 8560_ $$ffischerc@itam.cas.cz
000011914 8564_ $$s366085$$uhttps://invenio.itam.cas.cz/record/11914/files/02-0155.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 02-0155.
000011914 962__ $$r9324
000011914 980__ $$aPAPER