000018867 001__ 18867
000018867 005__ 20170118182245.0
000018867 04107 $$aeng
000018867 046__ $$k2017-01-09
000018867 100__ $$aMamani, Elvis J.
000018867 24500 $$aSeismic Response of Base-Isolated Reinforced Concrete Water Storage Tanks.	I: Lrb Isolation System

000018867 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018867 260__ $$b
000018867 506__ $$arestricted
000018867 520__ $$2eng$$aThis paper shows the seismic response of base-isolated circular cylindrical reinforced concrete (RC) water storage tanks with lead rubber bearing (LRB) under uni- and bi-directional horizontal earthquake ground motions. For the seismic analysis, tanks were considered to have a linear elastic behavior, the tank-water interaction was represented by an equivalent mechanical model, and the hysteretic behavior of the isolation system was represented by a bi-axial hysteretic restoring force model. The parameters of this study are: the water-height/tank-inner-radius ratio, the tank-wall-thickness/tank-innerradius ratio, the damping ratio of the isolation system, the target vibration period of the isolation system, and the strength ratio of the isolation system. Twenty-one pairs of selected and scaled ground motions were used. Time-history analysis was used to study the effect of bi-directional ground motion, as well as the effects of study parameters on seismic response of base-isolated RC water storage tanks. Seismic responses of base-isolated systems, when compared to fixed-base systems, show an effectiveness of LRB isolation system in the reduction of base shear values in the order of 14% to 74% for H/R = 0.5; of 47% to 83% for H/R = 1.0; of 73% to 91% for H/R = 2.0 (where H/R is the water-height/tank-inner-radius ratio). The effects of frictional pendulum system (FPS) are studied in a companion paper.

000018867 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018867 653__ $$alead rubber bearing, RC water storage tanks, time-history analysis

000018867 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018867 720__ $$aMamani, Elvis J.$$iFernandez-Davila, Victor I.
000018867 8560_ $$ffischerc@itam.cas.cz
000018867 8564_ $$s944447$$uhttps://invenio.itam.cas.cz/record/18867/files/238.pdf$$yOriginal version of the author's contribution as presented on USB, paper 238.
000018867 962__ $$r16048
000018867 980__ $$aPAPER