000015735 001__ 15735
000015735 005__ 20161115135328.0
000015735 04107 $$aeng
000015735 046__ $$k2013-06-12
000015735 100__ $$aPerez-Rocha, L-E.
000015735 24500 $$aInfluence of Soil-Structure Interaction on Isolated Buildings for Sf6 Gas-Insulated Substations

000015735 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000015735 260__ $$bNational Technical University of Athens, 2013
000015735 506__ $$arestricted
000015735 520__ $$2eng$$aFor earthquake excitation, base isolators have been successfully used in building structures on firm ground. However, the use of these devices in buildings on soft soil for SF6 gas-insulated substations introduces the following concerns: a) the frequency and damping characteristics of the fixed-base structure may change significantly by the combined effects of soil-structure interaction (SSI) and the base isolation device; and b) very large displacements may result because of the translation and rocking of the foundation. In this paper, the effects of SSI on the seismic response of a base-isolated MDOF system are investigated. Both kinematic and inertial effects are considered. The effective input motions (translation and rocking) for an embedded foundation are computed with the averaging Iguchi’s method. The soil is replaced by frequency-dependent elastic springs and viscous dampers computed with a finite layer method. The SSI analysis is performed in the frequency domain with the complex frequency method. Numerical results, including floor response spectra of acceleration and displacement, are computed for SSI conditions prevailing in Mexico City, where SF6 gasinsulated substations are being projected. The base isolation device must be capable of accommodating displacements associated with different performance levels.

000015735 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015735 653__ $$aSoil-structure interaction, seismic isolation, floor spectra.

000015735 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000015735 720__ $$aPerez-Rocha, L-E.$$iAviles Lopez, J.$$iTena Colunga, '.$$iCordero Macias, C.
000015735 8560_ $$ffischerc@itam.cas.cz
000015735 8564_ $$s1734116$$uhttps://invenio.itam.cas.cz/record/15735/files/1361.pdf$$yOriginal version of the author's contribution as presented on CD, section: CD-MS 31 SEISMIC ISOLATION OF INDUSTRIAL AND ESSENTIAL FACILITIES (POWER PLANTS-EQUIPMENT, CHEMICAL/OIL PLANTS-EQUIPMENT, HOSPITALS)
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000015735 962__ $$r15525
000015735 980__ $$aPAPER