000019747 001__ 19747
000019747 005__ 20170118182334.0
000019747 04107 $$aeng
000019747 046__ $$k2017-01-09
000019747 100__ $$aBradley, Cameron
000019747 24500 $$aSeismic Collapse Assessment of Low-Ductility Concentrically-Braced Frame Systems

000019747 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019747 260__ $$b
000019747 506__ $$arestricted
000019747 520__ $$2eng$$aLow-ductility steel concentrically-braced frame (CBF) systems that do not have seismic detailing or capacity design requirements are used extensively in moderate seismic regions of the United States. Structural behavior following brittle limit states is heavily dependent on secondary strength and stiffness, called reserve capacity. Recent full-scale cyclic tests and numerical simulations of low-ductility CBFs demonstrated potential sequences of damage and characteristics of reserve capacity for various system configurations. In addition, full-scale angle component and connection tests and corresponding numerical simulations have established a rigorous framework for modeling angle connections, which are very common in braced and gravity frame connections. With these full-scale component, connection and frame tests as the basis, seismic performance assessment of low-ductility CBFs has been conducted. This study considers a set of archetype buildings that represents common cases for the eastern and central US. Nonlinear response history analysis for ground motions scaled across a range of intensities is used to evaluate collapse potential of existing designs and to study enhanced design procedures that improve seismic stability. Selected results from this study are discussed in the present paper.

000019747 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019747 653__ $$aEarthquake-Resistant Design; Concentrically-Braced Frames; Moderate Seismic Regions; Nonlinear Analysis

000019747 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019747 720__ $$aBradley, Cameron$$iHines, Eric$$iFahnestock, Larry$$iSizemore, Joshua
000019747 8560_ $$ffischerc@itam.cas.cz
000019747 8564_ $$s1657703$$uhttps://invenio.itam.cas.cz/record/19747/files/4306.pdf$$yOriginal version of the author's contribution as presented on USB, paper 4306.
000019747 962__ $$r16048
000019747 980__ $$aPAPER