Seismic Response and Engineering of Cold-formed Steel Framed Buildings. (November 2016)

• Record Type: Journal Article
• Authors: Schafer, B.W.; Ayhan, D.; Leng, J.; Liu, P.; Padilla-Llano, D.; Peterman, K.D.; Stehman, M.; Buonopane, S.G.; Eatherton, M.; Madsen, R.; Manley, B.; Moen, C.D.; Nakata, N.; Rogers, C.; Yu, C.
• Is Part Of: Structures. Volume 8:Part 2(2016)
• Page Start: 197
• Page End: 212
• Publication Date: 2016-11
• Subjects: Cold-formed steel -- Seismic response -- Earthquake engineering -- Performance-based design; Structural engineering -- Periodicals; 624.1
• DOI: 10.1016/j.istruc.2016.05.009
• Languages: English
• ISSNs: 2352-0124

Abstract

Abstract: Buildings framed from cold-formed steel members are becoming increasingly common. Significant research has been conducted on individual cold-formed steel members, but little research has been done on full buildings framed from cold-formed steel. In the past, testing on individual shear walls has been used to provide insights and create safe seismic designs for cold-formed steel buildings, but understanding and modeling of whole buildings have been out of reach. As a result, seismic performance-based design has also remained out of reach for cold-formed steel framed buildings. Recently, a North American effort under the abbreviated name: CFS-NEES has begun to address this challenge head on. Major deliverables in the CFS-NEES effort included: shear wall testing, characterization, and modeling; cyclic member testing, characterization, and modeling; and, whole building shake table testing, and modeling. The research provides the necessary building blocks for developing efficient nonlinear time history models of buildings framed from cold-formed steel. In addition, the experiments demonstrate the large difference between idealized engineering models of the seismic force-resisting system and the superior performance of the full building system.