DOI QR코드

DOI QR Code

Experimental research on the creep buckling of fire-resistant steel columns at elevated temperature

  • Yang, Kuo-Chen (National Kaohsiung First University of Science and Technology, Department of Construction Engineering) ;
  • Yu, Zong-Han (National Kaohsiung First University of Science and Technology, Department of Construction Engineering)
  • 투고 : 2012.03.01
  • 심사 : 2013.06.10
  • 발행 : 2013.08.25

초록

The thermal creep is one of the major factors causing the buckle of steel columns in the fire events. But, few related studies have been reported to evaluate the factors affecting the thermal creep of steel column experimentally or numerically. In this study a series of Fire-resistant steel columns with three different slenderness ratios under a sustained load are tested under a uniform temperature up to six hours in order to evaluate the creep upon three selected factors, temperature, applied load, and column slenderness. Based on experimental results, a proposed creep strain rate model is established as the function of a single parameter of the load ratio of temperature LR(T) to determine the buckling time of steel column due to creep. Furthermore it is found that the creep can be neglected when LR(T) is smaller than 0.77.

키워드

과제정보

연구 과제 주관 기관 : National Science Council

참고문헌

  1. Ali, F. and O'Connor, D. (2001), "Structural performance of rotationally restrained steel columns in fire", Fire Safety J., 36(7), 679-691. https://doi.org/10.1016/S0379-7112(01)00017-0
  2. BS 476-20 (1987), Fire tests on building materials and structures-part 20: Methods for determination of the fire resistance of elements of construction (general principles).
  3. Correia, A.J.P.M. and Rodrigues, J.P.C. (2012), Fire resistance of steel columns with restrained thermal elongation, Fire Safety J., 50, 1-11. https://doi.org/10.1016/j.firesaf.2011.12.010
  4. Design Specifications for Steel Structures: LSD (1999), Construction and Planning Agency, Ministry of the Interior. [In Chinese]
  5. Franssen, J.M. (2000), "Failure temperature of a system comprising a restrained column submitted to fire, Fire Safety J., 34(2), 191-207. https://doi.org/10.1016/S0379-7112(99)00047-8
  6. Fujimoto, M., Furumura, F. and Ave, T. (1981), Primary creep of structural steel (SM 50A) at high temperatures, J. Struct. Const. Eng., 26(306), 145-157.
  7. Furumura, F., Ave, T. and Kim, W.J. (1986), "Creep buckling of steel columns at high temperatures part II Creep buckling tests and numerical analysis", J. Struct. Const. Eng., 361, 142-151.
  8. Huang, Z.F., Tan, K.H. and Ting, S.K. (2006), "Heating rate and boundary restraint effects on fire resistance of steel columns with creep", Eng. Struct., 28(6), 805-817. https://doi.org/10.1016/j.engstruct.2005.10.009
  9. Li, G.Q. and Zhang, C. (2012), "Creep effect on buckling of axially restrained steel columns in real fires", J. Construct. Steel Res., 71, 182-188. https://doi.org/10.1016/j.jcsr.2011.09.006
  10. Li, G.Q., Wang, P.J. and Hou, H.T. (2009), "Post-buckling behaviours of axially restrained steel columns in fire", Steel Compos. Struct., Int. J., 9(2), 89-101. https://doi.org/10.12989/scs.2009.9.2.089
  11. Neves, I.C., Valente, J.C., Rodrigues, J.P.C. (2002), "Thermal restraint and fire resistance of columns", Fire Safety J., 37(8), 753-771. https://doi.org/10.1016/S0379-7112(02)00029-2
  12. Sakumoto, Y., Yamaguchi, T., Okada, T., Yoshida, M., Tasaka, S. and Saito, H. (1994), Fire resistance of Fire-resistant steel columns, J. Struct. Div. ASCE, 120(4), 1103-1121. https://doi.org/10.1061/(ASCE)0733-9445(1994)120:4(1103)
  13. Skowronski, W. (1993), "Buckling fire endurance of steel columns", J. Struct. Eng., 119(6), 1712-1732. https://doi.org/10.1061/(ASCE)0733-9445(1993)119:6(1712)
  14. Tan, K.H., Toh, W.S., Huang, Z.F. and Phng, G.H. (2007), "Structural responses of restrained steel columns at elevated temperatures. Part 1: Experiments", Eng. Struct., 29(8), 1641-1652. https://doi.org/10.1016/j.engstruct.2006.12.005
  15. Valente, J.C. and Neves, I.C. (1999), "Fire resistance of steel columns with elastically restrained axial elongation and bending", J. Constr. Steel Res., 52(3), 319-331. https://doi.org/10.1016/S0143-974X(99)00033-4
  16. Wang, Y.C. and Davies, J.M. (2003), "An experimental study of non-sway loaded and rotationally restrained steel column assembles under fire conditions: Analysis of test results and design calculations", J. Construct. Steel Res., 59(3), 291-313. https://doi.org/10.1016/S0143-974X(02)00040-8
  17. Wong, M.B. (2005), "Modeling of axial restraints for limiting temperature calculation of steel members in fire", J. Construct. Steel Res., 61(5), 675-687. https://doi.org/10.1016/j.jcsr.2004.10.003
  18. Yang, K.C., Lee, H.H. and Chan, O. (2006), "Experimental study on Fire-resistant steel H columns subjected to fire load", J. Construct. Steel Res., 62(6), 544-553. https://doi.org/10.1016/j.jcsr.2005.09.008
  19. Zeng, J.L., Tan, K.H. and Huang, Z.F. (2003), "Primary creep bucking of steel columns in fire", J. Construct. Steel Res., 59(8), 951-970. https://doi.org/10.1016/S0143-974X(03)00027-0

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