000018687 001__ 18687
000018687 005__ 20170118182236.0
000018687 04107 $$aeng
000018687 046__ $$k2017-01-09
000018687 100__ $$aFang, Chia-Hung
000018687 24500 $$aTorsional Effects on Transverse Lateral Load Resisting Systems

000018687 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018687 260__ $$b
000018687 506__ $$arestricted
000018687 520__ $$2eng$$aThis study focuses on the evaluation of the seismic behavior of transverse lateral load resisting system when the longitudinal load resisting system is subjected to large torsional forces. Two prototype three-dimensional steel structures with three diaphragm types and two different horizontal layouts of the lateral load resisting system were investigated. The structures have symmetric or asymmetric braced frames in the longitudinal direction and moment frames in the transverse direction. Three models of floor diaphragm interactions were considered: a bare steel frame with rigid constraints (BF+R); a composite frame with rigid constraints (CF+R); and a composite frame (CF) without rigid constraints. The structures were subjected to nonlinear static and dynamic analyses under two cases of torsional eccentricity. Case Mta_1 represents the conventional accidental eccentricity. Case Mta_2 represents the consideration of the bi-axial effects from the two principal directions. The results indicated that (1) the transverse frames show higher strength demands for the asymmetric configuration; (2) the columns in the 1st story in the transverse frames show inelastic behavior for the asymmetric configuration; and (3) The asymmetric structures without rigid diaphragm constraints (CF) show the largest increment of both base shear and interstory drift when such structures include the effect of Mta_2.

000018687 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018687 653__ $$aTorsion, diaphragms, analyses, peripheral transverse frames

000018687 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018687 720__ $$aFang, Chia-Hung$$iLeon, Roberto
000018687 8560_ $$ffischerc@itam.cas.cz
000018687 8564_ $$s387978$$uhttps://invenio.itam.cas.cz/record/18687/files/2002.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2002.
000018687 962__ $$r16048
000018687 980__ $$aPAPER