Session Dates
14 Aug 2008 - 15 Aug 2008
Abstract
Presented in this paper is a new, unique and innovative composite cold formed steel floor system developed by iSPAN Technologies, called the “iSPAN Composite Floor System”. The joist sections are fabricated by fastening two cold-rolled flange chord elements with cold-driven rivets to a flat web element. This makes it possible to create a section where the flange chord elements can be of a different steel thickness with respect to the web element, resulting in a most efficient structural cross section and numerous design alternatives. The joist sections have lip-reinforced web openings spaced at 4 ft o.c. along the joist length to accommodate the usual service items. The joists are typically spaced 4 ft o.c. with a 7/8 in. corrugated steel deck spanning between the joists to support the concrete during casting. Featured in this paper are the results from push-out tests that have been carried out to establish the interlocking capacity of the concrete with the top chord of the joist section. The results of a full-scale laboratory structural test are also presented to substantiate the calculated strength and stiffness characteristics. Finally, the results of a field test during construction are presented.
Department(s)
Civil, Architectural and Environmental Engineering
Research Center/Lab(s)
Wei-Wen Yu Center for Cold-Formed Steel Structures
Meeting Name
19th International Specialty Conference on Cold-Formed Steel Structures
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2008 Missouri University of Science and Technology, All rights reserved.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Fox, D. M.; Schuster, R. M.; and Strickland, M., "Innovative Composite Cold Formed Steel Floor Joist System" (2008). CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018). 2.
https://scholarsmine.mst.edu/isccss/19iccfss/19iccfss-session6/2
Innovative Composite Cold Formed Steel Floor Joist System
Presented in this paper is a new, unique and innovative composite cold formed steel floor system developed by iSPAN Technologies, called the “iSPAN Composite Floor System”. The joist sections are fabricated by fastening two cold-rolled flange chord elements with cold-driven rivets to a flat web element. This makes it possible to create a section where the flange chord elements can be of a different steel thickness with respect to the web element, resulting in a most efficient structural cross section and numerous design alternatives. The joist sections have lip-reinforced web openings spaced at 4 ft o.c. along the joist length to accommodate the usual service items. The joists are typically spaced 4 ft o.c. with a 7/8 in. corrugated steel deck spanning between the joists to support the concrete during casting. Featured in this paper are the results from push-out tests that have been carried out to establish the interlocking capacity of the concrete with the top chord of the joist section. The results of a full-scale laboratory structural test are also presented to substantiate the calculated strength and stiffness characteristics. Finally, the results of a field test during construction are presented.
