Reliability of Spot Welds in Cold‐Formed Channels
Publication: Journal of Structural Engineering
Volume 110, Issue 6
Abstract
Cold‐formed channels are joined by means of spot welds to form various configurations. They are used in typical electrical cable and conduit supports, also in power plants. The present design procedures follow AISI specifications, which gives the allowable load per spot weld as a function of the thickness of connected plates. Tests were carried out to establish the distribution of spot weld capacity. It has been found that the strength strongly depends on technology of welding. It is recommended to review the AISI provisions and specify special allowable loads for spot welds connecting cold‐formed channels. The allowable loads could vary depending on type of connection (backto‐back, side‐to‐side, side‐to‐back) and technology of welding (degree of correlation between adjacent welds).
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References
1.
AISI, “Specification for the Design of Cold‐Formed Steel Structural Members,” American Iron and Steel Institute, Sept., 1980.
2.
Benjamin, J. R., and Cornell, C. A., “Probability, Statistics and Decision for Civil Engineers,” McGraw‐Hill Book Co., New York, N.Y., 1970.
3.
Ellingwood, et al., “Development of a Probability Based Load Criteria for American National Standard A58,” NBS Publication 577, Washington, June, 1980.
4.
Metals Handbook, Vol. 6, Welding and Bracing, American Society for Metals, 8th ed., 1971.
5.
Nowak, A. S., and Lind, N. C., “Practical Code Calibration Procedures,” Canadain Journal of Civil Engineering, No. 6, June, 1979, pp. 112–119.
6.
Nowak, A. S., and Lind, N. C., “Practical Bridge Code Calibration,” Journal of the Structural Engineering Division, ASCE, Vol. 105, No. ST12, Dec., 1979, pp. 2497–2510.
7.
Nowak, A. S., and Regupathy, P. V., “Reliability of Electric Cables and Conduit Supports,” Proceedings, Recent Research and Developments in Cold‐Formed Steel Design and Construction, St. Louis, Mo., Nov., 1982, pp. 597–611.
8.
Rackwitz, R., and Fiessler, B., “Structural Reliability Under Combined Random Load Sequences,” Comp. and Struct., No. 9, 1978, pp. 484–494.
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Copyright © 1984 ASCE.
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Published online: Jun 1, 1984
Published in print: Jun 1984
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