000011882 001__ 11882 000011882 005__ 20141205155956.0 000011882 04107 $$aeng 000011882 046__ $$k2008-10-12 000011882 100__ $$aThompson, Brandon K. 000011882 24500 $$aDeflection Amplification Factors for Ductile Braced Frames 000011882 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering 000011882 260__ $$b 000011882 506__ $$arestricted 000011882 520__ $$2eng$$aFor most seismic braced frames, strength rather than stiffness governs design. Still, it is important for designers to understand braced frame drift and predict inelastic deformations under severe earthquakes. Often in practice, inelastic drifts are estimated by amplifying the elastic drifts that occur under an equivalent lateral force. In current U.S. provisions, displacement amplification factors are about half of the strength reduction factors. Results from time history analyses of 36 braced frames under a suite of 10 earthquakes are used to investigate the accuracy of current methods to estimate inelastic drifts. Buckling restrained braced frames (BRBFs), special concentric braced frames (SCBFs), and eccentrically braced frames (EBFs) are considered. An alternative method of estimating inelastic drifts is investigated where only the shear components of the elastic drift are amplified. 000011882 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb. 000011882 653__ $$aBRBF, Cd, DAF, Drift, EBF, SCBF 000011882 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15 000011882 720__ $$aThompson, Brandon K.$$iRichards, Paul W. 000011882 8560_ $$ffischerc@itam.cas.cz 000011882 8564_ $$s166165$$uhttps://invenio.itam.cas.cz/record/11882/files/05-05-0113.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-05-0113. 000011882 962__ $$r9324 000011882 980__ $$aPAPER