Steel and Composite Structures

  • 제8권6호
  • /
  • Pages.491-510
  • /
  • 2008
  • /
  • 1229-9367(pISSN)
  • /
  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

A Study on the fire-resistance of concrete-filled steel square tube columns without fire protection under constant central axial loads

  • Park, Su-Hee (Department of Architectural Engineering, University of Seoul) ;
  • Choi, Sung-Mo (Department of Architectural Engineering, University of Seoul) ;
  • Chung, Kyung-Soo (Architectural Engineering Research Team, Research Institute of Industrial Science and Technology)
  • 투고 : 2008.06.04
  • 심사 : 2008.11.04
  • 발행 : 2008.12.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents a plan and guidelines that were drawn for Korean based research carried out on the fire-resistance of CFT columns. This research was carried out by reviewing the Korean regulations related to the fire-resistance of CFT columns and examining studies which had been made in Korea as well as overseas. The first phase of the study plan was to compare the fire-resistance of square CFT columns without fire protection (obtained through fire-resistance tests and numerical analyses) with estimated values (obtained through fire-resistance design formulas proposed in Korea and overseas). This comparison provided conclusions as outlined below. Fire-resistance tests conducted in this study proved that, when the actual design load is taken into consideration, square CFT columns without fire protection are able to resist a fire for more than one hour. A comparison was made of test and analysis results with the fire-resistance time based on the AIJ code, the AISC design formula and the estimation formula suggested for Korea. The results of this comparison showed that the test and analysis results for specimens SAH1, SAH2-1, SAH2-2 and SAH3 were almost identical with the AIJ code, the AISC design formula and estimation formula. For specimens SAH4 and SAH5, the estimation formula was more conservative than the AIJ code and the AISC design formula. It was necessary to identify the factors that have an influence on the fire-resistance of CFT columns without fire protection and to draw fire-resistance design formulas for these columns. To achieve this, it is proposed that numerical analyses and tests be conducted in order to evaluate the fire-resistance of circular CFT columns, the influence of eccentricity existing as an additional factor and the influence of the slenderness ratio of the columns. It is also suggested that the overall behavior of CFT structures without fire protection within a fire be evaluated through analysis simulation.

키워드

참고문헌

  1. Association of New Urban Housing (ANUH) (1997), Design Guide Manual for Concrete-filled Steel Tube Columns, Japan.
  2. Abdullateef M. Al-Khaleefi, Mohammad J. Terro, Alex P. Alex and Yong Wang (2002), Prediction of Fire Resistance of Concrete Filled Tubular Steel Columns using Neural Networks, Fire Safety J., 37, Issue 4, 339-352. https://doi.org/10.1016/S0379-7112(01)00065-0
  3. C. Renaud, J.M. Aribert and B. Zhao (2003), Advanced Numerical Model for the Fire Behaviour of Composite Columns with Hollow Steel Section, Steel Compos. Struct., 3(2), 75-95. https://doi.org/10.12989/scs.2003.3.2.075
  4. C. Renaud, J.M. Aribert and B. Zhao, Effect of differential thermal stresses on the fire resistance of composite columns with hollow section, ASCE Conference Proceedings of the Composite Construction in Steel and Concrete V, 607-618, July 18-23, 2006, Mpumalanga, South Africa.
  5. European Committee for Standardization (2003), Eurocode No. 4: Design of Composite Steel and Concrete Structures, Part 1.2: Structural Fire Design, DD ENV 1994-1-2, British Standards Institution, UK.
  6. G.M. Newman and W.I. Simms (2001), Technical Report SCI Publication P259: The Fire Resistance of Concrete Filled Tubes to Eurocode 4, Steel Construction Institute (SCI), UK.
  7. H.C. Han, Y.G. Kim, S.J. Kang and S.M. Choi (2007), The first application of non-covered CFT columns in actual construction in Korea, Korean Society of Steel Construction (KSSC), 19(2), 77-83, Korea.
  8. H. Saito and K. Ikeda (2001), Fire resistance of concrete-filled steel tube columns with inner reinforcement, J. Struct. Constr. Eng. (AIJ), 549, 151-157.
  9. ISO 834, International Organization for Standardization (1999), Fire-Resistance Tests- Elements of Building Construction, Switzerland.
  10. J. Ding and Y.C. Wang (2008), Realistic modeling of thermal and structural behaviour of unprotected concrete filled tubular columns in fire, J. Constr. Steel Res., 64, Issue 10, 1086-1102. https://doi.org/10.1016/j.jcsr.2007.09.014
  11. J.L. Ryddy, J.P. Marlo, S.A. Ioannides and F. Alfawakiri (2003), Fire Resistance of Structural Steel Framing, Steel Design Guide No. 19, American Institute of Steel Construction, Inc., Chicago, Illinois, USA.
  12. Jing Yin, Xiao-xiong Zha and Long-yuan Li (2006), Fire Resistance of Axially Loaded Concrete Filled Steel Tube Columns, J. Constr Steel Res., 62, Issue 7, 723-729. https://doi.org/10.1016/j.jcsr.2005.11.011
  13. K.H. Tan and C.Y. Tang (2004), Interaction Model for Unprotected Concrete Filled Steel Columns Under Standard Fire Conditions, J. Struct. Eng., ASCE, 130, 9, 1405-1413. https://doi.org/10.1061/(ASCE)0733-9445(2004)130:9(1405)
  14. Korean Agency for Technology and Standards (2005), KS F 2257-1: Methods of Fire Resistance Test for Elements of Building Construction- General Requirements, Korea.
  15. L.H. Han (2001), Fire Performance of Concrete Filled Steel Tubular Beam-Columns, J. Constr. Steel Res., 57, Issue 6,. 697-711. https://doi.org/10.1016/S0143-974X(00)00030-4
  16. L.H. Han, X.L. Zhao, Y.F. Yang and J.B. Feng (2003a), Experimental Study and Calculation of Fire Resistance of Concrete-Filled Hollow Steel Columns, J. Struct. Eng., ASCE, 129(3), 346-356. https://doi.org/10.1061/(ASCE)0733-9445(2003)129:3(346)
  17. L.H. Han, Y.F. Yang and L. Xu (2003b), An Experimental Study and Calculation on the Fire Resistance of Concrete-Filled SHS and RHS Columns, J. Constr. Steel Res., 59, Issue 4, pp. 427-452. https://doi.org/10.1016/S0143-974X(02)00041-X
  18. R. Bergmann, C. Matsui, C. Meinsma and D. Dutta (1995), Design Guide for Concrete-filled Hollow Section Columns under Static and Seismic Loading, Koln: CIDECT, Vzerlag T.U.V. Rheinland.
  19. S.M. Choi, K.S. Chung and D.K. Kim (1998), A theoretical studyz on the fire-resisting characteristics of CFT long/short columns, Architectural Ins. Kor. Con. Pro., 18(2), 305-310, Korea.
  20. S.M. Choi, K.S. Chung and D.K. Kim (2000), Suggestion of fire-resisting maximum strength formula for CFT columns under central axial load upon a fire, Architectural Ins. Kor. J., 16(6),13-20.
  21. S.M. Choi, D.K. Kim and K.S. Chung (2000), Structural Characteristics of CFT Columns subject to Fire Loading and Axial Force, Associate for International Cooperation and Research in Steel-Concrete Composite Structures(ASCCS), pp. 271-278.
  22. S.M. Choi, I.S. Yang and J.A. Chung (2003), Composite structure with fire-resistance, Kor. Society Steel Construction J., 15(2), 51-63, Korea.
  23. S.M. Choi, D.K. Kim, J.H. Kim, K.S. Chung and S.H. Park (2005), Experimental Study on Fire Resistance of Concrete-filled Steel Tube Column under Constant Axial Loads, Int.l Jouf Steel Struct, 5(4), 305-313. https://doi.org/10.12989/scs.2005.5.4.305
  24. S.M. Choi, S.H. Park, K.S. Chung and D.K. Kim (2006), Review of Material Properties for Predicting the Fire Resistance of Concrete-Filled Steel Square Tube Column using the Numerical Method, Associate for International Cooperation and Research in Steel-Concrete Composite Structures(ASCCS), pp. 909-919, China.
  25. S.M. Choi, S.H. Park, J.Y. Ryoo and K.S. Chung (2007), A numerical analysis of the fire-resistance of CFT columns under central axial load, Proceeding of Korean Society of Steel Construction, pp. 312-318, Korea.
  26. S.M. Choi, J.Y. Ryoo, S.H. Park, H.C. Han and B.Y. Min (2007), An experimental study on the fire-resistance of non-covered CFT columns, Proceeding of Korean Society of Steel Construction, pp. 558-563, Korea.
  27. T.T. Lie and M. Chabot (1992), Experimental Studies on the Fire Resistance of Hollow Steel Columns Filled with Plain Concrete, Institute for Research in Construction, National Research Council Canada.
  28. V.K.R. Kodur and T.T. Lie (1995), Fire Performance of Concrete-filled Hollow Steel Columns, J. Fire Pro. Eng., 7(3), 89-98. https://doi.org/10.1177/104239159500700302
  29. V.K.R. Kodur and T.T. Lie (1996), Fire Resistance of Circular Steel Columns Filled with Fiber-Reinforced Concrete, J. Struct. Eng., ASCE, 122(7), 776-782. https://doi.org/10.1061/(ASCE)0733-9445(1996)122:7(776)
  30. V.K.R. Kodur and T.T. Lie (1997), Evaluation of the Fire Resistance of Rectangular Steel Columns Filled with Fibre-reinforced Concrete, Canadian J. Civil Eng., 24(3), pp. 339-349. https://doi.org/10.1139/l96-114
  31. V.K.R. Kodur (1998), Design Equations for Evaluation Fire Resistance of SFRC-Filled HSS Columns, J. Struct. Eng., ASCE, 124(6), pp. 671-677. https://doi.org/10.1061/(ASCE)0733-9445(1998)124:6(671)
  32. V.K.R. Kodur (1999), Performance-based Fire Resistance Design of Concrete-Filled Steel Columns, J. Constr. Steel Res., 51, Issue 1, pp. 21-36. https://doi.org/10.1016/S0143-974X(99)00003-6
  33. V.K.R. Kodur (2005), Achieving Fire Resistance through Steel Concrete Composite Construction, Structures Congress'05, New York, April 21-23, pp. 1-6.
  34. V.K.R. Kodur and J.C. Latour (2005), Experimental Studies on the Fire Resistance of Hollow Steel Columns Filled with High-Strength Concrete, Research Report, Institute for Research in Construction, Canada.
  35. V.K.R. Kodur (2007), Guidelines for Fire Resistant Design of Concrete-Filled Steel HSS Columns - State-of-the-Art and Research Needs, Int. J. Steel Struct., 7, pp. 173-182.
  36. X.X. Zha (2003), FE Analysis of Fire Resistance of Concrete Filled CHS Columns, J. Constr. Steel Res., 59, Issue 6, 769-779. https://doi.org/10.1016/S0143-974X(02)00059-7
  37. Y. Sakumoto, T. Okada, M. Yoshida and S. Tasaka (1994), Fire Resistance of Concrete-Filled Fire Resistant Steel-Tube Columns, J. Mater. Civil Eng, 6(2), 169-184. https://doi.org/10.1061/(ASCE)0899-1561(1994)6:2(169)
  38. Y.C. Wang (2000), A Simple Method for Calculating the Fire Resistance of Concrete-filled CHS Columns, J. Constr. Steel Res., 54, Issue 3, 365-386. https://doi.org/10.1016/S0143-974X(99)00061-9
  39. Y.C. Wang (2002), Steel and Composite Structures- Behaviour and Design for Fire Safety, Spon Press- Taylor & Francis Group.

피인용 문헌

  1. Fire design method for bar-reinforced circular and elliptical concrete filled tubular columns vol.56, 2013, https://doi.org/10.1016/j.engstruct.2013.05.026
  2. Heat transfer in concrete-filled carbon and stainless steel tubes exposed to fire vol.61, 2013, https://doi.org/10.1016/j.firesaf.2013.07.004
  3. Slender double-tube ultra-high strength concrete-filled tubular columns under ambient temperature and fire vol.99, 2015, https://doi.org/10.1016/j.engstruct.2015.05.026
  4. Fire behavior of axially loaded slender high strength concrete-filled tubular columns vol.67, pp.12, 2011, https://doi.org/10.1016/j.jcsr.2011.06.012
  5. Proposal of a new method in EN1994-1-2 for the fire design of concrete-filled steel tubular columns vol.128, 2016, https://doi.org/10.1016/j.engstruct.2016.09.037
  6. Study on Fire Resistance of Cement vol.320, pp.1662-7482, 2013, https://doi.org/10.4028/www.scientific.net/AMM.320.308
  7. Fire performance of concrete-filled steel tubular columns strengthened by CFRP vol.11, pp.4, 2008, https://doi.org/10.12989/scs.2011.11.4.307
  8. Residual strength capacity of fire-exposed circular concrete-filled steel tube stub columns vol.6, pp.5, 2008, https://doi.org/10.12989/acc.2018.6.5.485