000011244 001__ 11244
000011244 005__ 20141205155850.0
000011244 04107 $$aeng
000011244 046__ $$k2008-10-12
000011244 100__ $$aOtani, Shunsuke
000011244 24500 $$aSeismic-Isolation Buildings under Large-Magnitude Earthquake Motions

000011244 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011244 260__ $$b
000011244 506__ $$arestricted
000011244 520__ $$2eng$$aMost urban areas in the world have been developed on alluvial plains, where earthquake motions having long period components may be excited under distant but large magnitude earthquakes amplified by the surface geology as deep as a few thousand meters. This paper reports the response of 10-story reinforced concrete base-isolated buildings to ground motions simulated for large-magnitude earthquakes. If columns are assumed to lose vertical load carrying capacity after the design shear force is developed, the structure collapses in the upper stories after large response deformation is developed in the seismic isolation layer; i.e. even low stiffness of the seismic isolation device develops large shear after such deformation. If the pounding of the first floor of the super structure against surrounding retaining walls is considered in the analysis, the collapse occurs in the lower stories. It is essential even in the design of base isolated buildings to provide ductility on the basis of the weak-beam strong-column concept against unexpected disturbances.

000011244 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011244 653__ $$aBase isolation, pounding against retaining walls, brittle collapse, ductility, long-period long-duration motions

000011244 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011244 720__ $$aOtani, Shunsuke$$iOkada, Naoko$$iOhami, Koichi
000011244 8560_ $$ffischerc@itam.cas.cz
000011244 8564_ $$s341389$$uhttps://invenio.itam.cas.cz/record/11244/files/S10-008.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: S10-008.
000011244 962__ $$r9324
000011244 980__ $$aPAPER