000010348 001__ 10348
000010348 005__ 20141205155718.0
000010348 04107 $$aeng
000010348 046__ $$k2008-10-12
000010348 100__ $$aIsmail, Mohammed
000010348 24500 $$aA New Approach to Rolling-Based Seismic Isolators for Light- To Moderate Structures

000010348 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010348 260__ $$b
000010348 506__ $$arestricted
000010348 520__ $$2eng$$aBased on the concept of reducing seismic demand rather than increasing the earthquake resistant capacity of structures, the use of base isolation has already been recognized as a very effective method to mitigate or reduce earthquake damage potential. Most of the current seismic isolators still have significant up to serious problems which impose restrictions to its proper use and the provided protection level especially for light- to moderate structures. In this study, an advanced rolling-based seismic isolator is proposed for such structures. This isolator is patented and incorporates isolation, energy dissipation, buffer and restoring force mechanisms in a single unit. Furthermore, the proposed isolator offers a significant wind resistance, relatively controllable bearing area, and a great range of horizontal flexibility. Moreover, issues related to construction costs, preventing structural torsion and uplift were thoroughly addressed. In this paper, the mathematical modeling of the proposed isolator as well as parameter identification and model validation is studied. Then, the proposed isolator is investigated via numerical simulation to examine its efficiency and performance level for light-moderate mass building structures excited by different actual ground motion records. The simulation results reveal that the proposed isolator device can isolate seismic transmitted energy effectively under different ground motion excitations while exhibiting robust performance for a wide range of structures.

000010348 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010348 653__ $$aSeismic Isolation, Hysteresis, Simulation, Bouc-Wen Model

000010348 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010348 720__ $$aIsmail, Mohammed$$iRodellar, Jose$$iIkhouane, Faycal
000010348 8560_ $$ffischerc@itam.cas.cz
000010348 8564_ $$s525387$$uhttps://invenio.itam.cas.cz/record/10348/files/S25-012.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: S25-012.
000010348 962__ $$r9324
000010348 980__ $$aPAPER