000018987 001__ 18987
000018987 005__ 20170118182253.0
000018987 04107 $$aeng
000018987 046__ $$k2017-01-09
000018987 100__ $$aEberhard, Marc
000018987 24500 $$aA New Intensity Measure That Accounts for the Effects of Spectral Acceleration, Duration, and Spectral Shape

000018987 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018987 260__ $$b
000018987 506__ $$arestricted
000018987 520__ $$2eng$$aThe effects of ground motion duration and the shape of the spectrum after the structure softens are not accounted for in structural design. The design code recommends that buildings be designed based on the spectral acceleration at the structure’s period from the maximum considered earthquake (MCE). Recorded ground motions scaled to the MCE spectral acceleration can result in a wide variety of nonlinear structural responses. To reduce the variation in structural response at a particular ground-motion intensity, a new intensity measure is formulated to account for the combined effects of spectral acceleration, ground-motion duration, and the response spectrum shape. The intensity measure includes a new measure of spectral shape that integrates the spectrum over a period range that depends on the structure’s ductility. The paper demonstrates the efficiency of the IM in predicting collapse of deteriorating single and multiple degree-offreedom systems. This efficiency is attributable to the inclusion of ground-motion duration and the ductility dependence of the spectral shape measure. Finally, the new IM’s efficiency is compared to several existing spectral shape intensity measures.

000018987 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018987 653__ $$aspectral shape, ground-motion duration, intensity measure, structural collapse analysis

000018987 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018987 720__ $$aEberhard, Marc$$iMarafi, Nasser$$iBerman, Jeffrey
000018987 8560_ $$ffischerc@itam.cas.cz
000018987 8564_ $$s399839$$uhttps://invenio.itam.cas.cz/record/18987/files/2637.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2637.
000018987 962__ $$r16048
000018987 980__ $$aPAPER