Behavior of High Strength Structural Steel at Elevated Temperatures
Publication: Journal of Structural Engineering
Volume 132, Issue 12
Abstract
This paper presents the mechanical properties of high strength structural steel and mild structural steel at elevated temperatures. Mechanical properties of structural steel at elevated temperatures are important for fire resistant design of steel structures. However, current design standards for fire resistance of steel structures are mainly based on the investigation of hot-rolled carbon steel with normal strength, such as mild steel. The performance of high strength steel at elevated temperatures is unknown. Hence, an experimental program has been carried out to investigate the mechanical properties of both high strength steel and mild steel at elevated temperatures. The high strength steel BISPLATE 80 (approximately equivalent to ASTM A 514, EN 10137-2 Grade S690Q, and JIS G 3128) and the mild steel XLERPLATE Grade 350 (approximately equivalent to ASTM 573-450) were tested using steady and transient-state test methods. The elastic moduli and yield strengths were obtained at different strain levels, and the ultimate strength and thermal elongation were evaluated at different temperatures. It is shown that the reduction factors of yield strength and elastic modulus of high strength steel and mild steel are quite similar for the temperature ranging from . The test results were compared with the predictions obtained from the American, Australian, British, and European standards.
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Acknowledgments
The writers would like to thank Bisalloy Steels, Unanderra, Australia, for supplying the high strength steel plate for the experiments detailed in this paper. Further, the writers would also like to acknowledge the encouragement of Professor Richard Liew of the National University of Singapore in pursuing this topic of research, which has been identified as an area of significant interest particularly for practical applications in tall building construction.
References
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 132 • Issue 12 • December 2006
Pages: 1948 - 1954
Copyright
© 2006 ASCE.
History
Received: Apr 12, 2005
Accepted: Mar 13, 2006
Published online: Dec 1, 2006
Published in print: Dec 2006
Notes
Note. Associate Editor: Venkatesh Kumar R. Kodur
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