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Energy Dissipation Demand of Braces Using Non-linear Dynamic Analyses of X-Braced Frame  

Lee, Kangmin (뉴욕주립대학교 토목공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.15, no.4, 2003 , pp. 379-388 More about this Journal
Abstract
The response of single story buildings and other case studies were investigated to observe trends and develop a better understanding of the impact of some design parameters on the seismic response of Concentrically Braced Frames (CBF). While many parameters are known to influence the behavior of braced frames, the focus of this study was mostly on quantifying energy dissipation in compression and its effectiveness on seismic performance. Based on dynamic analyses of single story braced frame and case studies, a bracing member designed with bigger R and larger KL/r was found to result in lower normalized cumulative energy ratio in both cases.
Keywords
Seismic response; Concentrically braced frame; Non-linear dynamic analysis; Energy dissipation; Compression member; Slenderness ratio; R factor; DRAIN-2DX;
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