000011379 001__ 11379
000011379 005__ 20141205155905.0
000011379 04107 $$aeng
000011379 046__ $$k2008-10-12
000011379 100__ $$aPrinz, Gary
000011379 24500 $$aSeismic Response of Buckling-Restrained Braced Frames with Beam Splices

000011379 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011379 260__ $$b
000011379 506__ $$arestricted
000011379 520__ $$2eng$$aBuckling-restrained braced frames (BRBFs) are used in steel buildings to resist lateral earthquake loads. The system ductility of typical BRBFs is limited by the performance of the beam-column-gusset connection regions at large drifts. Experiments have indicated that connection ductility may be improved by splicing the beam outside the gusset region. Dynamic analyses were performed to investigate the impact of these beam splices on the seismic response of BRBFs. Two series of analyses were performed. In the first series, BRBF frames were analyzed as two dimensional systems subjected to in-plane loading. Beam splices were modeled using rotational springs. The impact of the strength and stiffness of the splice was investigated. Frames were subjected to a suite of ten ground motions scaled to represent design events. The second series of dynamic analyses involved more advanced models. Three dimensional models were developed where connection regions including the gusset plates were modeled with shell elements. These models were subjected to ground accelerations oriented at different angles to the frame. Models were considered with and without beam splices outside the gusset region. The use of beam splices proved effective in reducing stress build-up in the gusset-to-beam and gusset-to-column connecting regions. Maximum gusset stresses in the first story beams and columns had a 50 percent reduction in magnitude. Adding beam splices had negligible impact on drifts.

000011379 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011379 653__ $$aFinite Element Analysis, Seismic Loads, Steel Frames

000011379 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011379 720__ $$aPrinz, Gary$$iRichards, Paul W.$$iFremming, Stephen
000011379 8560_ $$ffischerc@itam.cas.cz
000011379 8564_ $$s214348$$uhttps://invenio.itam.cas.cz/record/11379/files/05-01-0311.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-01-0311.
000011379 962__ $$r9324
000011379 980__ $$aPAPER