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http://dx.doi.org/10.5000/EESK.2011.15.6.033

Comparative Evaluation of Formulas of Strength Reduction Factors for the Generation of an Inelastic Demand Spectrum  

Cho, Sung-Gook ((주)제이스코리아 기술연구소)
Park, Woong-Ki ((주)제이스코리아 기술연구소)
Joe, Yang-Hee (인천대학교 도시환경공학부)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.15, no.6, 2011 , pp. 33-44 More about this Journal
Abstract
The shape of an inelastic demand spectrum may have a major impact on the seismic evaluation results of a structure. The inelastic demand spectrum could be obtained by scaling down from the elastic response spectrum by applying the strength reduction factor (SRF). This study has investigated formulas for SRFs that were suggested by numerous previous studies. This paper compares their characteristics, including the shapes of the curves of the SRFs and the inelastic demand spectra that were produced by applying the various formulas for SRFs. The mean curve was computed from the SRF curves generated by the various formulas. This study derives a new formula for the SRF curve through regression analysis. From the comparative study, it is shown that the proposed formula for the SRF can generate the mean curve of the inelastic demand spectra which have been previously suggested by others.
Keywords
Inelastic Demand Spectrum; Seismic evaluation; Strength Reduction Factor; Mean Curve;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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