Steel and Composite Structures

  • 제9권2호
  • /
  • Pages.89-101
  • /
  • 2009
  • /
  • 1229-9367(pISSN)
  • /
  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Post-buckling behaviours of axially restrained steel columns in fire

  • Li, Guo-Qiang (College of Civil Engineering, Tongji University) ;
  • Wang, Peijun (College of Civil Engineering, Tongji University) ;
  • Hou, Hetao (Building Department of Shandong University)
  • 투고 : 2006.11.03
  • 심사 : 2007.10.29
  • 발행 : 2009.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents a simplified model to study post-buckling behaviours of the axially restrained steel column at elevated temperatures in fire. The contribution of axial deformation to the curvature of column section is included in theoretical equations. The possible unloading at the convex side of the column when buckling occurs is considered in the stress-strain relationship of steel at elevated temperatures. Parameters that affect structural behaviours of the axial restrained column in fire are studied. The axial restraint cause an increase in the axial force before the column buckles; the buckling temperature of restrained columns will be lower than non-restrained steel columns. However, the axial force of a restrained column decreases after the column buckles with the elevation of temperatures, so make use of the post-buckling behaviour can increase the critical temperature of restrained columns. Columns with temperature gradient across the section will produce lower axial force at elevated temperatures.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

참고문헌

  1. El-Rimawi, J. A., Burgess, I. W. and Plank, R. J. (1996), "The treatment of strain reversal in structural members during the cooling phase of a fire", Fire Safety J., 37(2), 115-135.
  2. European Committee for Standardization (CEN) ENV 1993-1-2 (2001), Eurocode 3 design of steel structures, part 1.2 general rules/structural fire design, London: British Standards Institution.
  3. 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
  4. Lamont, S. (2001), "The behaviour of multi-storey composite steel framed structures in response to compartment fires", PhD Thesis, University of Edinburgh.
  5. Neves, I.C. (1995), "The critical temperature of steel columns with restrained thermal elongation", Fire Safety J., 24(3), 211-227. https://doi.org/10.1016/0379-7112(95)00026-P
  6. Rodrigues, J. P. C., Neves, I. C. and Valente, J. C. (2000), "Experimental research on the critical temperature of compressed steel elements with restrained thermal elongation", Fire Safety J., 35(2), 77-98. https://doi.org/10.1016/S0379-7112(00)00018-7
  7. Sharples, J.R., Plank, R.J. and Nethercot, D.A.(1994), "Load-temperature-deformation behaviour of partially protected steel columns in fire", Eng. Struct., 16(8), 637-643. https://doi.org/10.1016/0141-0296(94)90049-3
  8. Shanley, F. R. (1947), "Inelastic column theory", Aeronaut. Sci., 14(5), 261-267. https://doi.org/10.2514/8.1346
  9. Simms, W. I., O'Connor, D. J., Ali, F. and Randall, M. (1995-1996), "An experimental investigation on the structural performance of steel columns subjected to elevated Temperatures", J. Fire Sci., 5(4), 269-284.
  10. Wang, Y. C. (2004), "Post-buckling behaviour of axially restrained and axially loaded steel columns under fire conditions", J. Struct. Eng. ASCE, 130(3), 371-380. https://doi.org/10.1061/(ASCE)0733-9445(2004)130:3(371)

피인용 문헌

  1. Experimental and numerical study on restrained composite slab during heating and cooling vol.69, pp.1, 2012, https://doi.org/10.1016/j.jcsr.2011.08.009
  2. Integrated fire dynamics and thermomechanical modeling framework for steel-concrete composite structures vol.10, pp.2, 2010, https://doi.org/10.12989/scs.2010.10.2.129
  3. Refined plastic-hinge model for analysis of steel-concrete structures exposed to fire vol.71, 2012, https://doi.org/10.1016/j.jcsr.2011.09.009
  4. Behaviour and design of restrained steel column in fire, Part 3: Practical design method vol.66, pp.11, 2010, https://doi.org/10.1016/j.jcsr.2010.05.009
  5. Finite element analysis of creep for plane steel frames in fire 2012, https://doi.org/10.1007/s11709-012-0162-x
  6. Experimental research on the creep buckling of fire-resistant steel columns at elevated temperature vol.15, pp.2, 2013, https://doi.org/10.12989/scs.2013.15.2.163
  7. Implementation of total Lagrangian formulation for the elasto-plastic analysis of plane steel frames exposed to fire 2012, https://doi.org/10.1007/s11709-012-0163-9
  8. Creep of the Plane Steel Frame at Elevated Temperature vol.446-449, pp.1662-8985, 2012, https://doi.org/10.4028/www.scientific.net/AMR.446-449.793
  9. The Effects of Geometric Nonlinearity on Elasto-Plastic Analysis of Plane Steel Frames in Fire vol.446-449, pp.1662-8985, 2012, https://doi.org/10.4028/www.scientific.net/AMR.446-449.3513
  10. Analytical approximate solutions for large post-buckling response of a hygrothermal beam vol.43, pp.2, 2009, https://doi.org/10.12989/sem.2012.43.2.211
  11. Finite element analysis and axial bearing capacity of steel reinforced recycled concrete filled square steel tube columns vol.72, pp.1, 2019, https://doi.org/10.12989/sem.2019.72.1.043