Abstract
In this study, the suitability of current design methods for the 0.2% proof yield strength of the corner regions for high strength cold-formed steel at normal room temperature was investigated. The current standard predictions are generally accurate for outer corner specimen but conservative for inner corner specimen. Based on the experimental results, an analytical model to predict the corner strength of high strength cold-formed steel at normal room temperature was also proposed. The comparison indicated that the proposed model predicted well the corner strength of high strength cold-formed steel not only at normal room temperature but also at elevated temperatures. It is shown that the predictions obtained from the proposed model agree well with the test results. Generally the corner strength enhancement of high strength cold-formed steel decreases when the temperature increases.
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References
AS (Australia Standard), 1979. Methods for the Tensile Testing of Metals at Elevated Temperatures. AS 2291, Sydney, Australia.
ASCE (American Society of Civil Engineers), 2002. Specification for the Design of Cold-formed Stainless Steel Structural Members. SEI/ASCE 8-02, New York.
AS/NZS (Australian/New Zealand Standard), 2001. Cold-formed Stainless Steel Structures. AS/NZS 4673, Standards Australia. Sydney, Australia.
AS/NZS (Australian/New Zealand Standard), 2005. Cold-formed Steel Structures. AS/NZS 4600, Standards Australia, Sydney, Australia.
ASTM (American Society for Testing and Materials) E21-92, 1997. Standard Test Methods for Elevated Temperature Tension Tests of Metallic Materials. Annual Book of ASTM Standards. Metals-Mechanical Testing; Elevated and Low-temperature Tests; Metallography. West Conshohochken, PA.
Chajes, A., Britvec, S.J., Winter, G., 1963. Effect of cold-straining on structural sheet steels. ASCE Journal of Structural Division, 89(4):1–32.
Chen, J., Young, B., 2006. Corner properties of cold-formed steel sections at elevated temperatures. Thin-Walled Structures, 44(2):216–223. [doi:10.1016/j.tws.2006.01.004]
Chen, J., Young, B., 2007. Experimental investigation of cold-formed steel material at elevated temperatures. Thin-Walled Structures. 45(1):96–110. [doi:10.1016/j.tws.2006.11.003]
Karren, K.W., 1967. Corner properties of cold-formed steel shapes. ASCE Journal of Structural Division, 93(1):401–432.
NAS (North American Specification), 2001. North American Specification for the Design of Cold-formed Steel Structural Members. American Iron and Steel Institute, Washington, D.C.
Yang, D., Hancock, G.J., 2004a. Compression tests of high strength steel channel columns with interaction between local and distortional buckling. ASCE Journal of Structural Engineering, 130(12):1954–1963. [doi:10.1061/(ASCE)0733-9445(2004)130:12(1954)]
Yang, D., Hancock, G.J., 2004b. Compression tests of cold-reduced high strength steel sections. I: stub columns. ASCE Journal of Structural Engineering, 130(11):1772–1781. [doi:10.1061/(ASCE)0733-9445(2004)130:11(1772)]
Yang, D., Hancock, G.J., Rasmussen, K.J.R., 2004. Compression tests of cold-reduced high strength steel sections. II: long columns. ASCE Journal of Structural Engineering, 130(11):1782–1789. [doi:10.1061/(ASCE)0733-9445(2004)130:11(1782)]
Yu, W.W., 2000. Cold-formed Steel Design. John Wiley and Sons, Inc., New York.
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Project (No. 113000-X80703) supported by the Postdoctoral Fund of Zhejiang Province, China
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Chen, J., Jin, Wl. Corner strength enhancement of high strength cold-formed steel at normal room and elevated temperatures. J. Zhejiang Univ. Sci. A 9, 1251–1257 (2008). https://doi.org/10.1631/jzus.A0720056
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DOI: https://doi.org/10.1631/jzus.A0720056