000018974 001__ 18974
000018974 005__ 20170118182251.0
000018974 04107 $$aeng
000018974 046__ $$k2017-01-09
000018974 100__ $$aAlmazan, Jose Luis
000018974 24500 $$aExperimental Analysis of Cylindrical Steel Tank Liquid Storage With Fixed Base and Isolation Base

000018974 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018974 260__ $$b
000018974 506__ $$arestricted
000018974 520__ $$2eng$$aTanks for hazardous liquid storage have proved to be vulnerable when destructive earthquakes appear. Their collapse leads to the spillage of the contained substances (flammable, explosive, toxic) negatively impacting in the surrounding environment and causing big economic losses for the region where they are located. This work`s goal is to determine the effectiveness of the systems of seismic isolation in supported cylindrical tanks, which store hazardous liquids, and to measure the incidence of certain parameters over the response. In order to achieve this, it is necessary to perform a parametric analysis of the response history, with multiple runs and with a high computational cost. Due to that, a simple and fast method, based on the resolution of the problem through an Euler-Lagrange Equation is proposed in this article. As isolation devices, friction isolators of single friction pendulum were used. As an input, earthquakes with both vibratory and impulsive seismic movement characteristics were used. Both a base fixed and a base isolated tank were modeled, and as study parameters, the slenderness ratio of the tank and the period and the friction coefficient of the seismic isolation system were modeled. The seismic responses in terms of displacements of the free surface of the contained liquid, displacements of the isolation system and the normalized base shear were determined. The results state that the isolation system reduces the maximum response in all cases, but it increases its effectiveness as the tank slenderness ratio increases. The slender tanks are shown to be very sensitive to the system isolation period, while the thick tanks are strongly conditioned in its response by the friction coefficient.

000018974 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018974 653__ $$aseismic analysis, cylindrical tank, base isolation

000018974 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018974 720__ $$aAlmazan, Jose Luis$$iTornello, Miguel Eduardo$$iFrau, Carlos Daniel$$iMirasso, Anibal$$iCordone, Juan Pablo
000018974 8560_ $$ffischerc@itam.cas.cz
000018974 8564_ $$s698054$$uhttps://invenio.itam.cas.cz/record/18974/files/2609.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2609.
000018974 962__ $$r16048
000018974 980__ $$aPAPER