Session Dates
24 Aug 2012 - 25 Aug 2012
Abstract
The objective of this paper is to provide a full hysteretic characterization of OSB sheathed cold-formed steel (CFS) shear walls designed for use in the National Science Foundation funded Network for Earthquake Engineering Simulation (NEES) project: CFS-NEES (www.ce.jhu.edu/cfsnees). The shear walls were designed for a two-story ledger-framed building (i.e., the CFS-NEES building) that will undergo full-scale shake table testing at the University of Buffalo NEES site. Shear walls in real construction, such as the CFS-NEES building, have details that differ from the shear walls tested and provided for strength prediction in standards such as AISI-S213-07. Differences include: (a) ledger (rim track) members are attached across the interior face of the studs, (b) OSB panel seams, both horizontal and vertical, may not be aligned with the chord studs or only blocked with strap, (c) interior gypsum board is in place, (d) field studs may have a different thickness or grade from the chord studs, and other differences. In this work, these four highlighted differences (a-d) are specifically explored in a series of shear walls tests loaded via cyclic (CUREE) protocols to determine their hysteretic performance. The test results are compared with AISIS213-07 and hysteretic material characterizations utilizing an elastic-plastic model (EEEP) and a model capable of exhibiting pinching in the hysteretic loops (Pinching4). Recommendations are made with respect to modeling the shear walls.
Department(s)
Civil, Architectural and Environmental Engineering
Research Center/Lab(s)
Wei-Wen Yu Center for Cold-Formed Steel Structures
Meeting Name
21st International Specialty Conference on Cold-Formed Steel Structures
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2012 Missouri University of Science and Technology, All rights reserved.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Liu, P.; Peterman, K. D.; Yu, C.; and Schafer, B. W., "Characterizaiton of Cold-formed Steel Shear Wall Behavior under Cyclic Loading for the CFS-NEES Building" (2012). CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018). 5.
https://scholarsmine.mst.edu/isccss/21iccfss/21iccfss-session10/5
Characterizaiton of Cold-formed Steel Shear Wall Behavior under Cyclic Loading for the CFS-NEES Building
The objective of this paper is to provide a full hysteretic characterization of OSB sheathed cold-formed steel (CFS) shear walls designed for use in the National Science Foundation funded Network for Earthquake Engineering Simulation (NEES) project: CFS-NEES (www.ce.jhu.edu/cfsnees). The shear walls were designed for a two-story ledger-framed building (i.e., the CFS-NEES building) that will undergo full-scale shake table testing at the University of Buffalo NEES site. Shear walls in real construction, such as the CFS-NEES building, have details that differ from the shear walls tested and provided for strength prediction in standards such as AISI-S213-07. Differences include: (a) ledger (rim track) members are attached across the interior face of the studs, (b) OSB panel seams, both horizontal and vertical, may not be aligned with the chord studs or only blocked with strap, (c) interior gypsum board is in place, (d) field studs may have a different thickness or grade from the chord studs, and other differences. In this work, these four highlighted differences (a-d) are specifically explored in a series of shear walls tests loaded via cyclic (CUREE) protocols to determine their hysteretic performance. The test results are compared with AISIS213-07 and hysteretic material characterizations utilizing an elastic-plastic model (EEEP) and a model capable of exhibiting pinching in the hysteretic loops (Pinching4). Recommendations are made with respect to modeling the shear walls.
