Analysis of Structural Members under Elevated Temperature Conditions
Publication: Journal of Structural Engineering
Volume 121, Issue 4
Abstract
This paper presents a general numerical method to calculate the nonlinear behavior of load-bearing members under elevated temperature conditions. The method, although similar in concept to earlier approaches, differs with respect to both solution procedure and capability. The governing equations are formulated in a succinct format and an innovative iteration procedure is used to obtain the solution. The method can take into account the combined actions of axial force and biaxial bending, external restraints, temperature variation over the cross section and along the member, material nonlinearity, geometric nonlinearity, unloading and reloading, residual or initial stresses, and initial “out-of-straightness” of the member. It applies to members of any cross-sectional shape and with any elevated temperature stress-strain relationship for the material, including one with zero or negative slope. The application of the method is illustrated using a practical design example in which the fire resistance of an unprotected steel column of large cross-sectional area was evaluated.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
AS4100-1990, steel structures. (1990). Standards Australia, Sydney, Australia.
2.
Anderberg, Y. (1976). “Fire exposed hyperstatic concrete structures—an experimental and theoretical study.”Bull. 55, Lund Inst. of Technol., Div. of Struct. Mech. and Concrete Constr., Lund, Sweden.
3.
“Méthode de Prévision par le Calcul du Comportement au Feu des Structures en Acier; Document Technique Unifié (DTU).” (1982). Construction Métallique, Saint-Remy-Chevreuse, France, Centre Technique Industriel de la Construction Métallique (CTICM), Vol. 3, 39–104 (in French).
4.
Franssen, J. M.(1990). “The unloading of building materials submitted to fire.”Fire Safety Journal, 16(3), 213–227.
5.
Hass, R. (1986). “Zur Praxisgerechten Brandschutztechnischen Beurteilung von Stützen aus Stahl und Beton.”Res. Rep., Institut für Baustoffe, Massivbau und Brandschutz der Technischen Universität Braunschweig, Braunschweig, Germany, Vol. 69 (in German).
6.
Jeyarupalingam, N., and Virdi, K. S. (1991). “Steel beams and columns exposed to fire hazard.”Proc., Conf. of Struct. Des. for Hazardous Loading.
7.
Lie, T. T., and Chabot, M.(1993). “Evaluation of the fire resistance of compression members using mathematical models.”Fire Safety Journal, 20(2), 135–149.
8.
Okabe, T., Furumura, F., Ave, T., and Shinohara, Y. (1991). “Elasto-plastic-creep three-dimensional analysis of steel H-columns subjected to high temperature.”Fire Safety Sci.—Proc., 3rd Int. Symp., 741–750.
9.
O'Meagher, A. J., Bennetts, I. D., Hutchinson, G. L., and Steven, L. K. (1991). “Modelling of concrete-filled tubular columns in fire.”Rep. No. BHPR/ENG/R/91/031/PS69, BHP Res.—Melbourne Laboratories, Melbourne, Australia.
10.
Poh, K. W., and Bennetts, I. D.(1995). “Behavior of steel columns at elevated temperatures.”J. Struct. Engrg., ASCE, 121(4), 676–684.
11.
Schleich, J. B. (1987). “Computer-assisted analysis of the fire-resistance of steel and composite concrete-steel structures.”EUR 10828 EN, Commission of the Eur. Communities, Esch-Sur-Alzette, Luxembourg.
12.
Twilt, T. (1991). “Stress-strain relationships of structural steel at elevated temperatures: analysis of various options & European Proposal.”TNO-Rep. BI-91-015, TNO Build. and Constr. Res., Delft, The Netherlands.
13.
Wainman, D. E., and Kirby, B. R. (1988). “Compendium of United Kingdom standard fire test data on unprotected structural steel.”Rep., British Steel Tech., Swinden Laboratories, Moorgate, Rotherham, South Yorkshire, England,Vol. 1.
14.
Wickström, U. (1979). “TASEF-2—a computer program for temperature analysis of structures exposed to fire.”Rep. No. 79-2, Lund Inst. of Technol., Dept. of Struct. Mech., Lund, Sweden.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 121 • Issue 4 • April 1995
Pages: 664 - 675
Copyright
Copyright © 1995 American Society of Civil Engineers.
History
Published online: Apr 1, 1995
Published in print: Apr 1995
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.