Steel and Composite Structures

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Structural stability of fire-resistant steel (FR490) H-section columns at elevated temperatures

  • Kwon, In-Kyu (Department of Fire Protection Engineering, Kangwon National University) ;
  • Kwon, Young-Bong (Department of Civil Engineering, Yeungnam University)
  • Received : 2013.09.23
  • Accepted : 2014.02.27
  • Published : 2014.07.25
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Abstract

A fundamental limitation of steel structures is the decrease in their load-bearing capacity at high temperatures in fire situations such that structural members may require some additional treatment for fire resistance. In this regard, this paper evaluates the structural stability of fire-resistant steel, introduced in the late 1999s, through tensile coupon tests and proposes some experimental equations for the yield stress, the elastic modulus, and specific heat. The surface temperature, deflection, and maximum stress of fire-resistant steel H-section columns were calculated using their own mechanical and thermal properties. According to a comparison of mechanical properties between fire-resistant steel and Eurocode 3, the former outperformed the latter, and based on a comparison of structural performance between fire-resistant steel and ordinary structural steel of equivalent mechanical properties at room temperature, the former had greater structural stability than the latter through $900^{\circ}C$.

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References

  1. Chung, H.Y., Lee, C.H., Su, W.J. and Lin, R.Z. (2010), "Application of fire-resistant steel to beam-to-column moment connections at elevated temperatures", J. Construct. Steel Res., 66(2), 289-303. https://doi.org/10.1016/j.jcsr.2009.09.009
  2. European Committee for Standardisation (ECS), Eurocode 3 (1995), Design of Steel Structures Part 1.2: General Rules Structural Fire Design, Brussels, Belgium.
  3. Kelly, F.S. and Sha, W. (1999), "A comparison of the mechanical properties of fire-resistant and S275 structural steels", J. Construct. Steel Res., 50(3), 223-233. https://doi.org/10.1016/S0143-974X(98)00252-1
  4. Kodur, V., Dwoikat, M. and Fike, R. (2010), "High-temperature properties of steel for fire resistance modelling of structures", J. Mater. Civil Eng., 22(5), 423-434. https://doi.org/10.1061/(ASCE)MT.1943-5533.0000041
  5. Korean Standard Association, KS D 0026 (2002), Method of Elevated Temperature Tensile Test for Steels and Heat-Resisting Alloys, Seoul, Korea.
  6. Korean Standard Association, KS B 0802 (2003), Method of Tensile Test for Metallic Materials, Seoul, Korea.
  7. Korean Standard Association, KS F 2257-7 (2005), Methods of Fire Resistance Test for Elements of Building Construction-Beam, Column, Seoul, Korea.
  8. Kwon, I.K. (1997), "Evaluation on the mechanical properties of fire resistant steels at high temperature condition with manufacturing processes", J. Steel Construct., 19(2), 181-190.
  9. Kwon, I.K. (2009), "Development of analytic program for calculation of fire resistant performance on steel structures", J. Regional Assoc. Architect. Inst. Korea, 11(3), 201-208.
  10. Kwon, I.K. and Shin, S.G. (2011), "Evaluation of fire resistance using mechanical properties at high temperature for steel column made of rolled steels (SS400)", Korean J. Metals Mater., 49(9), 671-677.
  11. Kwon, I.K. and Kwon, Y.B. (2012), "Determination of limiting temperatures for H-section and hollow section columns", Steel Compos. Struct., Int. J., 13(4), 309-325. https://doi.org/10.12989/scs.2012.13.4.309
  12. Muratov, A.N., Morozov, Y.D., Chevskaya, O.N. and Filippov, G.A. (2007), "Technology for the commercial production of fire-resistant steel for building structures", Metallugist, 51(7), 446-453. https://doi.org/10.1007/s11015-007-0079-0
  13. Sakumoto, Y., Yamaguchi, T., Okada, T., Yoshida, M., Tasaka, S. and Saito, H. (1994), "Fire resistance of fire-resistant steel columns", J. Struct. Eng., 120(4), 1103-1121. https://doi.org/10.1061/(ASCE)0733-9445(1994)120:4(1103)
  14. SBI (1976), Fire Engineering Design of Steel Structures", Lund, Sweden.
  15. Somaini, D., Knobloch, M. and Fontama, M. (2012), "Buckling of steel columns in fire: non-linear behaviour and design proposal", Steel Construct., 5(3), 175-182. https://doi.org/10.1002/stco.201210022
  16. Usmani, A., Roben, C. and Al-Remal, A. (2009), "A very simple method for assessing tall building safety in major fires", J. Steel Struct., 9(1), 17-28. https://doi.org/10.1007/BF03249476
  17. Yang, K.C., Chen, S.J., Lin, C.C. and Lee, H.H. (2006), "Experimental study on local buckling of fire-resisting steel columns under fire load", J. Construct. Steel Res., 61(4), 553-565.
  18. Yu, H., Burgess, I.W., Davison, J.B. and Plank, R.J. (2008), "Numerical simulation of bolted steel connections in fire using explicit dynamic analysis", J. Construct. Steel Res., 64(5), 515-525. https://doi.org/10.1016/j.jcsr.2007.10.009
  19. Zalok, E., Hadjisophocleous, G.V. and Mehaffey, J.R. (2009), "Fire loads in commercial premies", Fire Mater., 33(2), 63-78. https://doi.org/10.1002/fam.984

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