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Fire Resistance of Concrete-Filled Circular Steel Tube Columns under Central Axial Loads  

Park, Su Hee (서울시립대학교 건축공학과)
Song, Kyung Chul (서울시립대학교 건축공학과)
Ryoo, Jae Yong (서울시립대학교 건축공학과)
Chung, Kyung Soo (포항산업과학연구원 강구조연구소)
Choi, Sung Mo (서울시립대학교 건축공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.20, no.5, 2008 , pp. 655-663 More about this Journal
Abstract
In this research, the fire resistance of Concrete-Filled Circular Steel Tube Columns (CFT) was evaluated by numerical analysis. As the materials of CFT columns, the steel of SPSR 400 grade and the concrete of 27.5MPa, 37.8MPa strengths were used. Significant parameters,such as concrete strength, axial load, and cross-sectional dimensions were determined. To verify the accuracy of the numerical analysis,the analysis results were compared with the former experiment results. The effect of the fire resistance time, axial load ratio, cross-sectional dimensions and concrete strength was evaluated by comparison with the fire resistance of the square CFT columns. This research showed that the structural behavior and fire resistance from the findings of numerical parametric studies showed a similarity to that of the experimental results. Therefore, this numerical analysis is reasonable in estimating the fire resistance of the circular CFT column.
Keywords
Fire Resistance; Concrete-Filled Circular Steel Tube Column; Constant Axial Load High Temperature;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 American Institute of Steel Construction, Inc.,(2003), Steel Design Guide 19 - Fire Resistance of Structural Steel Framing.
2 Eurocode 4 Part1-2.(2001), Design of Composite Steel and Concrete Structures - Structural Fire Design, British Standards Institution, London.
3 Choi, S. M., Park, S.H., Chung, K.S., and Kim, D. K.(2006), Review of Material Properties for Predicting the Fire Resistance of Concrete-Filled Steel Square Tube Column using the Numerical Method, 8th Association for steel-concrete composite structures (ASCCS 2006), China.
4 Kim, D. K., Choi, S.M., Kim. J.H., Chung, K.S., and Park, S.H.(2005), Experimental study on fire resistance of concrete-filled steel tube column under constant axial loads, International Journal of Steel Structures, No.5, pp.305-313.   DOI
5 Y. C. Wang(2002), Steel and Composite Structures - Behaviour and Design for Fire Safety, Spon Press - Taylor & Francis Group.
6 T. Suzuki, M. Kimura, A. Kodaira, and M. Fushimi (1985), Experimental Study on Fire Resistance of Concrete-filled Square Steel Columns, Journal Construction and Engineering, AIJ, 35(3), pp.77-85.
7 H. Saito, T. Morita, and H. Uesugi(2004), Fire Resistance of Concrete-Filled Steel Tube Columns under Constant Axial Loads, Journal Environment and Engineering, 35(3), pp.9-16.
8 V.K.R. Kodur(1998), Design Equations for Evaluating Fire Resistance of SERC-filled HSS Columns, Journal of Structural Engineering, ASCE, 35(3), pp.81-93.
9 L.H. Han, X.L. Zhao, Y.F. Yang, and J.B. Feng (2003), Experimental Study and Calculation of Fire Resistance of Concrete-Filled Hollow Steel Columns, Journal of Structural Engineering, ASCE, 35(3), pp.81-93.
10 ISO(1975), Fire Resistance Test-Elements of Building Construction, ISO 834, Geneva.
11 Y.C. Wang(1999), The Effects of Structural Continuity on the Fire Resistance of Concrete Filled Columns in Nonsway Frames, Journal Constructional Steel Researches, 35(3), pp.177-197.
12 Zha, X.X.,(2003) FE analysis of fire resistance of concrete filled CHS columns, Journal of Constructional Steel Research, No. 59, pp.769-779.
13 Yin, J., Zha, X.X. and Li, L. Y.(2006), Fire resistance of axially loaded concrete filled steel tube columns, Journal of Constructional Steel Research, No.62, pp.723-729.