Title Evaluation of R-Factor for Cold-Formed Steel Frames with Shear Panels
Authors Lee Moon-Sung ; Choi Young-Hwan
Page pp.115-122
ISSN 12269107
Keywords Cold-formed Steel ; Performance Evaluation ; Response Modification Factor
Abstract The purpose of this study is to evaluate the performance of cold-formed steel (CFS) frames with shear panels designed under current U.S. design codes and standards of practice. The response modification factor, R, of the cold-formed steel structural system was examined using the rational approach proposed by Foutch and Wilcoski. The approach is based on the performance evaluation method developed from the SAC project. The target is to achieve a 90% confidence level in satisfying the Collapse Prevention(CP) performance level for a hazard level with 2% probability of being exceeded in 50 years. New values for various parameters were decided for CFS buildings because parameters from SAC project were for steel moment frame buildings.