Steel Sheet Sheathed Cold-Formed Steel Framed In-line Wall Systems. I: Impact of Structural Detailing
Publication: Journal of Structural Engineering
Volume 148, Issue 12
Abstract
The North American construction industry has seen substantial growth in the use of cold-formed steel (CFS) framing for midrise buildings in recent years. In seismic zones, CFS-framed buildings utilize shear walls to provide the primary lateral resistance to earthquake induced loads. Although oriented strand board (OSB) and plywood panels have been traditionally used as the sheathing material for these essential components, more recently, steel sheet sheathing has emerged as a novel strategy due to its strength, ductility, ease of installation, and use of noncombustible material, among other benefits. To address the paucity of data regarding CFS-framed shear wall response within actual wall lines of buildings, a two-phased experimental effort was conducted. Wall-line assemblies were fabricated and tested with shear walls placed in-line with gravity walls. The shear walls chord stud packs include tie-rod assemblies consistent with multi-story detailing. Specimens were either unfinished or finished, and the shear walls were laid out in a symmetrical or unsymmetrical fashion within in the wall line. In addition, both Type I and Type II shear wall and anchorage detailing were investigated. In this paper, the impact of test variables governing the structural detailing of CFS-framed walls are quantified through dynamic and quasi-static tests, and a companion paper presents findings regarding the impact of architectural variations on seismic performance.
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Data Availability Statement
The specimens tested under the CFS-NHERI experimental program were monitored with many analog sensors in addition to digital still cameras, several video cameras, and GPS and UAV monitoring systems. High-quality data generated during the study are publicly available within the DesignSafe-CI repository (Singh et al. 2021a, 2022a).
Acknowledgments
The research presented herein is funded through the National Science Foundation (NSF) Grant Nos. CMMI 1663569 and CMMI 1663348, project entitled Collaborative Research: Seismic Resiliency of Repetitively Framed Mid-Rise Cold-Formed Steel Buildings. Ongoing research is a result of collaboration between three academic institutions: University of California, San Diego, Johns Hopkins University, and University of Massachusetts, Amherst, two institutional granting agencies: American Iron and Steel Institute and Steel Framing Industry Association and 10 industry partners. Industry sponsors include ClarkDietrich Building Systems, California Expanded Metal Products Co. (CEMCO), SWS Panel, SureBoard, United States Gypsum Corporation (USG), MiTek, Nevell Group, Atlas Tube, the Steel Network (TSN), and NBM Technologies; who each provided financial, technical, construction, and materials support. Specific individuals that dedicated significant time on behalf of this effort included Greg Ralph (ClarkDietrich), Fernando Sesma (CEMCO), Diego Rivera (SWS Panels), Tyler Elliot (SureBoard), Shahab Torabian (NBM Technologies), Esmaeel Rahmani and Jesse Karnes (MiTek), and Mike Korthals and Mark Wilson (Nevell Group). Regarding support for the test programs, the efforts of NHERI@University of California, San Diego, and Powell Labs staff, namely, Noah Aldrich, Robert Beckley, Jeremy Fitcher, Abdullah Hamid, Dr. Christopher Latham, Darren McKay, Andrew Sander, Michael Sanders, and Alex Sherman, graduate students Filippo Sirotti and Maryam Soltani (University of Bologna, Italy), and several undergraduate students are greatly appreciated. Findings, opinions, and conclusions are those of the authors and do not necessarily reflect those of the sponsoring organizations.
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Published In
Journal of Structural Engineering
Volume 148 • Issue 12 • December 2022
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Sep 2, 2021
Accepted: Apr 18, 2022
Published online: Sep 22, 2022
Published in print: Dec 1, 2022
Discussion open until: Feb 22, 2023
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Cited by
- Amanpreet Singh, Xiang Wang, Zhidong Zhang, Fani Derveni, Hernan Castaneda, Kara D. Peterman, Benjamin W. Schafer, Tara C. Hutchinson, Steel Sheet Sheathed Cold-Formed Steel Framed In-line Wall Systems. II: Impact of Nonstructural Detailing, Journal of Structural Engineering, 10.1061/(ASCE)ST.1943-541X.0003434, 148, 12, (2022).