000022206 001__ 22206
000022206 005__ 20170622150001.0
000022206 04107 $$aeng
000022206 046__ $$k2015-05-25
000022206 100__ $$aKostinakis, Konstantinos
000022206 24500 $$aIN PLAN DISTRIBUTION OF ISOLATORS EFFECTIVE STIFFNESS FOR MINIMIZING THE TORSIONAL RESPONSE OF BASE ISOLATED BUILDINGS

000022206 24630 $$n5.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000022206 260__ $$bNational Technical University of Athens, 2015
000022206 506__ $$arestricted
000022206 520__ $$2eng$$aThe present study examines the influence of the isolators’ effective stiffness distribution on the torsional response of base isolated structures. To accomplish this purpose two asymmetric in plan R/C buildings are analyzed for two different distributions of isolators’ effective stiffness: (a) all the isolators have identical horizontal stiffness and (b) the isolators’ effective stiffness is chosen so as the optimum torsion axis of the structure to coincide with the vertical mass axis. The two buildings are subjected to linear as well as nonlinear time history analyses under three bidirectional earthquake ground motions. For each earthquake record the maximum response over all incident angles of seismic motion is determined. The analyses results reveal that the displacements of the structural elements located at the flexible side of the buildings as well as the rotations of the slabs are reduced significantly when the isolators’ effective stiffness is chosen so as the optimum torsion axis of the structure to coincide with the vertical mass axis.

000022206 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022206 653__ $$aBase Isolation, Torsional Response, R/C Buildings, Effective Stiffness of Isolators, Time History Analysis.

000022206 7112_ $$aCOMPDYN 2015 - 5th International Thematic Conference$$cCrete (GR)$$d2015-05-25 / 2015-05-27$$gCOMPDYN2015
000022206 720__ $$aKostinakis, Konstantinos$$iAtsalos, Athanasios$$iArampatzi, Dimitra$$iAthanatopoulou, Asimina
000022206 8560_ $$ffischerc@itam.cas.cz
000022206 8564_ $$s1201593$$uhttps://invenio.itam.cas.cz/record/22206/files/C1527.pdf$$yOriginal version of the author's contribution as presented on CD, section: 
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000022206 962__ $$r22030
000022206 980__ $$aPAPER