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http://dx.doi.org/10.7731/KIFSE.2017.31.2.009

Experimental Study of the Fire Behavior of CFT Columns in Relation to the Sectional Shape & Size  

Cho, Bum-Yean (Fire Research Institute, Korea Institute of Civil Engineering and Building Technology)
Kim, Heung-Youl (Fire Research Institute, Korea Institute of Civil Engineering and Building Technology)
Kwon, Ki-Seok (Fire Research Institute, Korea Institute of Civil Engineering and Building Technology)
Yang, Seung-Cho (Fire Research Institute, Korea Institute of Civil Engineering and Building Technology)
Publication Information
Fire Science and Engineering / v.31, no.2, 2017 , pp. 9-16 More about this Journal
Abstract
In this study, fire resistance tests were conducted to evaluate the fire resistance performance of unprotected and non-welded CFT columns in relation to the shape and size of cross-sections. Unprotected slot-type CFT columns which were ${\square}300$ and ${\square}500$ in dimensions resisted fire for 125 minutes and more than 180 minutes, respectively. Strain analysis showed that slot-type CFT columns were more ductile than welded CFT columns. The temperatures of central parts measured when welded CFT columns and slot-type CFT columns had lost fire resistance performance were higher in the former than the latter. Therefore, slot connection does not a great influence on the temperatures inside the concrete.
Keywords
Concrete Filled Tube (CFT); Slot; Fire Resistance; High Strength Concrete; Column;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 J. A. Purkiss, "Fire Saftey Engineering Design of Structures", Butterworth Heinemann (1996).
2 A. H. Buchanan, "Structural Design for Fire Safety", John Wiley & Sons Ltd. (2002).
3 Y. C. Wang, "Steel and Composite Structures", Spon Press (2002).
4 W. D. Callister, Jr., "Materials Science and Engineering : An Introduction", John Wiley & Sons, Inc. (2006).
5 T. T. Lie and M. Chabot, "Experimental studies on the fire resistance of hollow steel columns filled with plain concrete", Institute for Research in Construction, National Research Council of Canada, Internal Report No. 611 (1992).
6 V. K. R. Kodur and T. T. Lie, "Experimental Studies on the Fire Resistance of Circular Hollow Steel Columns Filled with steel Fibre Reinforced Concrete", Institute for Research in Construction, National Research Council of Canada, Internal Report No. 691 (1995).
7 V. K. R. Kodur, "Performance-based Fire Resistance Design of Concrete-Filled Steel Columns", Institute for Research in Construction, National Research Council of Canada, Journal of Constructional Steel Research Vol. 51 (1999).
8 K. Sakino, "Behavior of Centrally Loaded Concrete-filled Steel-tube Short Columns", Journal of Structural Engineering, Vol. 130 (2004).
9 Y. F. Yang, "Concrete-filled Double-skin Tubular Columns Under Fire", Magazine of Concrete Research, Vol. 60 No. 3 (2008).
10 K. C. Song, "An Experimental Study on Fire Resistance of Concrete Filled Double Skin Tubular Columns", Architectural Institute of Korea (2009).
11 B. Y. Cho and N. Y. Jee, "A Study on the Mechanical Properties of Structural Steels by Welding at High Temperature", Journal of the Architectural Institute of Korea Structure & Construction, Vol. 25, No. 12 (2009).
12 K. J. Hwang, "Determination of the Fire Protection Thickness of CFT Column Using Heat Transfer Analysis" Journal of the Architectural Institute of Korea Structure & Construction, Vol. 29 No. 6 (2013).
13 G. H. Hong, I. R. Choi and K. S. Chung, "An Analysis of Design Formulas on Section Types of Rectangular Concrete Filed Steel Tube Columns", Journal of the Architectural Institute of Korea Structure & Construction, Vol. 30, No. 11 (2014).
14 EN 1994-1-2, Eurocode 4: "Design of Composite Steel and Concrete Structures, Part 1.2: General Rules-Structural Fire Design" (2005).
15 American Welding Society, "AWS D1.1/D1.1M: STRUCTURAL WELDING CODE STEEL" (2006).