Seismic Design Method for CFS Diagonal Strap-Braced Stud Walls: Experimental Validation
Publication: Journal of Structural Engineering
Volume 142, Issue 3
Abstract
The search for innovative methods to ensure high structural, technological, and environmental performance is an important issue in the development of new construction. Among the several available building systems, constructions involving the structural use of cold-formed steel (CFS) profiles represent an efficient and reliable solution. In an effort to characterize the seismic response of CFS structures and to support the spread of these systems, a theoretical and experimental research has been carried out. It focused on the all-steel-design solution, in which CFS diagonal strap-braced stud walls are the main lateral resisting system. In order to overcome the lack of information in the current European codes, a critical analysis has been carried out of the requirements for these systems in difference codes for hot-rolled X-braced steel frames (tension-only). On the basis of the design hypothesis outlined from this analysis, a case study has been developed with the aim to define an extended experimental campaign involving 12 tests on full-scale CFS diagonal strap-braced stud walls. Finally, on the basis of experimental results, the assumed design prescriptions and requirements, such as the force modification factor and the capacity design rules, have been verified.
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Acknowledgments
The authors acknowledge the Department of Civil Protection for the financial support to the research activity and the following companies: Guerrasio (Roccapiemonte SA, Italy) for the furnishing of steel profiles, TECFI (Pastorano CE, Italy) for the screws and KNAUF (Castellina Marittima PI, Italy) for the collaboration to the specimens assembling.
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Published In
Journal of Structural Engineering
Volume 142 • Issue 3 • March 2016
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Dec 10, 2014
Accepted: Jul 22, 2015
Published online: Oct 27, 2015
Published in print: Mar 1, 2016
Discussion open until: Mar 27, 2016
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