000019292 001__ 19292
000019292 005__ 20170118182309.0
000019292 04107 $$aeng
000019292 046__ $$k2017-01-09
000019292 100__ $$aZhang, Yixin
000019292 24500 $$aAnalytical Fragility Research on RC Frame-Core Tube Structures With An Optimum Intensity Measure

000019292 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019292 260__ $$b
000019292 506__ $$arestricted
000019292 520__ $$2eng$$a：In this paper, the analytical seismic fragility relations of RC high-rise frame-core tube structures is derived with an improved intensity measure (IM). As reference buildings, nine typical RC frame-core tube structures with varying height, width of building plan and seismic fortification levels (SFL) are designed and numerically modeled for conducting nonlinear dynamic time history analysis. To ensure sufficiency and efficiency for IM, which is the geometric mean of spectral acceleration over a certain period range in the study, an optimization algorithm is developed to select the period range. Consequently, the comparison of this optimal spectral value with traditional IMs exhibits a substantial reduction in correlation with seismic parameters (sufficiency) and in dispersion with respect to structural response (efficiency). Then the fragility curves are obtained based on the defined damage states that are consistent with current seismic design code. The impact of aspect ratio and seismic fortification levels on the fragility relationships are also investigated. As expect, no significant trends were observed between structural seismic fragility and aspect ratio including both height and width of building plan, while seismic fortification level has a great impact on fragility assessment.

000019292 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019292 653__ $$ahigh-rise RC frame-core tube structures; intensity measure; fragility assessment

000019292 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019292 720__ $$aZhang, Yixin$$iHe, Jinchuan$$iQin, Qing$$iZheng, Shansuo
000019292 8560_ $$ffischerc@itam.cas.cz
000019292 8564_ $$s347375$$uhttp://invenio.itam.cas.cz/record/19292/files/3316.pdf$$yOriginal version of the author's contribution as presented on USB, paper 3316.
000019292 962__ $$r16048
000019292 980__ $$aPAPER