Session Start Date

11-10-2016

Session End Date

11-10-2016

Abstract

The in-plane response of CFS framed diaphragm structures subjected to seismic excitation is not well understood. At present, the North American AISI S400 Standard does not include a seismic design procedure for CFS framed diaphragms for use in Canada, and offers limited information for their use in the US. In addition, the effect of non-structural components on the lateral strength and stiffness of the diaphragm component has yet to be explored. In an effort to provide insight into the complex nature of the diaphragm structure and the influence of non- structural components an experimental program was initiated in the Jamieson Structures Laboratory at McGill University focusing on the characterization of the behaviour of CFS framed - wood sheathed diaphragms under in-plane loading. This paper presents the results for four diaphragm configurations with oriented strand board sheathing (OSB) tested under monotonic and reversed cyclic loading following the cantilever test method. The 3.7m x 6.1m diaphragm specimens were constructed with different structural configurations as well as non-structural gypsum panels below the steel framing. Design predictions for the shear strength and deflection of the diaphragm specimens were obtained using the information available in the AISI S400 Standard.

Department(s)

Civil, Architectural and Environmental Engineering

Research Center/Lab(s)

Wei-Wen Yu Center for Cold-Formed Steel Structures

Meeting Name

International Specialty Conference on Cold-Formed Steel Structures 2016

Publisher

Missouri University of Science and Technology

Publication Date

11-10-2016

Document Version

Final Version

Rights

© 2016 Missouri University of Science and Technology, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

Available for download on Thursday, November 01, 2018

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Characterization of Cold-Formed Steel Framed Diaphragm Response under In-Plane Loading and Influence of Non-Structural Gypsum Panels

The in-plane response of CFS framed diaphragm structures subjected to seismic excitation is not well understood. At present, the North American AISI S400 Standard does not include a seismic design procedure for CFS framed diaphragms for use in Canada, and offers limited information for their use in the US. In addition, the effect of non-structural components on the lateral strength and stiffness of the diaphragm component has yet to be explored. In an effort to provide insight into the complex nature of the diaphragm structure and the influence of non- structural components an experimental program was initiated in the Jamieson Structures Laboratory at McGill University focusing on the characterization of the behaviour of CFS framed - wood sheathed diaphragms under in-plane loading. This paper presents the results for four diaphragm configurations with oriented strand board sheathing (OSB) tested under monotonic and reversed cyclic loading following the cantilever test method. The 3.7m x 6.1m diaphragm specimens were constructed with different structural configurations as well as non-structural gypsum panels below the steel framing. Design predictions for the shear strength and deflection of the diaphragm specimens were obtained using the information available in the AISI S400 Standard.