Response Modification Factor for Y-Eccentric-Braced Steel Frame Structures

Wen Xia Yang; Qiang Gu; Zhen Sen Song

doi:10.4028/www.scientific.net/AMR.250-253.2285

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Response Modification Factor for Y-Eccentric-Braced Steel Frame Structures

Abstract:

In current seismic design procedure, structural base shear is calculated according to the linear elastic response spectra divided by response modification factor R. The response modification factor is important to the reliability and economy of building seismic design. In this paper, the response modification factors of Twelve Y-eccentric braced steel frames with various stories and spans lengths were evaluated by capacity spectrum method based on the global capacity envelops obtained from an improved pushover analysis and incremental dynamic analysis. According to the results, an appropriate formula of the response modification factor for the Y-eccentric braced steel frames was suggested.

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Periodical:

Advanced Materials Research (Volumes 250-253)

Pages:

2285-2290

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.250-253.2285

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Online since:

May 2011

Authors:

Wen Xia Yang, Qiang Gu, Zhen Sen Song

Keywords:

Capacity Spectrum Method, Incremental Dynamic Analysis (IDA), Pushover Analysis, Response Modification Factors, Y-Eccentric Braced Steel Frames

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