Bearing Strength of Cold-Formed Steel Bolted Connections Using Oversized Holes without Washers
Publication: Journal of Structural Engineering
Volume 137, Issue 1
Abstract
This note presents an experimental study of the bearing strength of cold-formed steel (CFS) bolted connections using oversized holes without washers. The test parameters include the sheet thickness, the connection type, the number of bolts, and the bolt diameter. The test results indicate that the use of oversized holes without washers will cause excessive connection deformation and reduce the connection strength. Based on the test data, a new design method is developed to accurately determine the bearing strength of CFS bolted connections when oversized hole is used without washers.
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Acknowledgments
The writers would like to thank the American Iron and Steel Institute and the Metal Building Manufactures Association for funding this project.
References
American Iron and Steel Institute (AISI). (2007). “North American specification for the design of cold-formed steel structural members.” AISI S100, Washington, D.C.
ASTM. (2007). “Standard test methods and definitions for mechanical testing of steel products.” A370-07b, West Conshohocken, Pa.
LaBoube, R. A., and Yu, W. W. (1995). “Tensile and bearing capacities of bolted connections.” Final Summary Rep., Civil Engineering Study 95-6, Cold-Formed Steel Series, Dept. of Civil Engineering, Univ. of Missouri–Rolla, Rolla, Mo.
Research Council on Structural Connections (RCSC). (2004). Specification for structural joints using ASTM A325 or A490 bolts, Chicago.
Wallace, J., Schuster, R., and LaBoube, R. (2001a). “Testing of bolted cold-formed steel connections in bearing (with and without washers).” Research Rep. PR01-4, American Iron and Steel Institute, Washington, D.C.
Wallace, J., Schuster, R., and LaBoube, R. (2001b). “Calibrations of bolted cold-formed steel connections in bearing (with and without washers).” Research Rep. PR01-5, American Iron and Steel Institute, Washington, D.C.
Yu, W. W. (2000). Cold-formed steel design, 3rd Ed., Wiley, New York.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 137 • Issue 1 • January 2011
Pages: 156 - 159
Copyright
© 2011 ASCE.
History
Received: Jan 6, 2010
Accepted: Jul 10, 2010
Published online: Jul 15, 2010
Published in print: Jan 2011
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