08-31-2013, 09:52 AM
Seismic Demands on Steel Braced Frame Buildings with Buckling-Restrained Braces
Author: Rafael Sabelli, Stephen Mahin and Chunho Chang | Size: 0.44 MB | Format: PDF | Quality: Unspecified
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This paper highlights research being conducted to identify ground motion and structural
characteristics that control the response of concentrically braced frames, and to identify
improved design procedures and code provisions. The focus of this paper is on the seismic
response of three and six story concentrically braced frames utilizing buckling-restrained
braces. A brief discussion is provided regarding the mechanical properties of such braces and
the benefit of their use. Results of detailed nonlinear dynamic analyses are then examined for
specific cases as well as statistically for several suites of ground motions to characterize the
effect on key response parameters of various structural configurations and proportions.
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