Steel and Composite Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Full scale test and alnalytical evaluation on flexural behavior of tapered H-section beams with slender web

  • Lee, Seong Hui (Division Architectural Engineering, School of Architecture and Architectural Engineering University of Seoul) ;
  • Choi, Sung Mo (Division Architectural Engineering, School of Architecture and Architectural Engineering University of Seoul) ;
  • Lee, E.T. (Department of Architectural Engineering, School of Architecture and Building Science College of Engineering Chung-Ang University) ;
  • Shim, Hyun Ju (Department of Architectural Engineering, School of Architecture and Building Science College of Engineering Chung-Ang University)
  • Received : 2007.07.16
  • Accepted : 2008.08.27
  • Published : 2008.10.25
⟨ Previous Next ⟩

Abstract

In December 2005, one(A) of the two pre-engineered warehouse buildings in the port of K City of Korea was completely destroyed and the other(B) was seriously damaged to be demolished. Over-loaded snow and unexpected blast of wind were the causes of the accident and destructive behavior was brittle fracture caused by web local buckling and lateral torsional buckling at the flange below rafter. However, the architectural design technology of today based on material non-linear method does not consider the tolerances to solve the problem of such brittle fracture. So, geometric non-linear evaluation which includes initial deformation, width-thickness ratio, web stiffener and unbraced length is required. This study evaluates the structural safety of 4 models in terms of width-thickness ratio and unbraced length using ANSYS 9.0 with parameters such as width-thickness ratio of web, existence/non-existence of stiffener and unbraced length. The purpose of this study is to analyze destructive mechanism of the above-mentioned two warehouse buildings and to provide ways to promote the safety of pre-engineered buildings.

Keywords

References

  1. AISC (2001). Manual of Steel Construction-Load and Resistance Factor Design, 3rd edition, American Institute of Steel Construction
  2. Andrade Anisio, Camotim Dinar, Dinis P. Borges (2007), "Lateral-torsional buckling of singly symmetric webtapered thin walled I-beams : 1D model vs. shell FEA", Comoput. Struct., v.85 pp. 1343-1359 https://doi.org/10.1016/j.compstruc.2006.08.079
  3. Larue, B. Khelil, A. Gueury M. (2007), "Elastic flexural-torsional buckling of steel beams with rigid and continuous lateral restraints", J. Construct. Steel Res., v.63, pp.692-708. https://doi.org/10.1016/j.jcsr.2006.07.004
  4. Larue, B. Khelil, A. Gueury M.(2007), "Evaluation of the lateral-torsional buckling of an I beam section continuously restrained along a flange by studying the buckling of an isolated equivalent profile", Thin-Walled Structures v. 45, pp77-95. https://doi.org/10.1016/j.tws.2006.11.005
  5. Butler, D. J. (1966). "Elastic buckling tests on laterally and torsionally braced tapered beams", Welding Research Supplement, 45(1), 1-41
  6. Butler, D. J. (1966). "Elastic buckling tests on laterally and torsionally braced tapered beams", Welding Research Supplement, 45(1)," 1-41
  7. Butler, D. J. and Anderson, G. B. (1963), "The elastic buckling of tapered beam-columns", Welding Research Supplement, 42(1), 1-29
  8. Polyzois Dimos and Raftoyiannis Ioannis G. (1998), "Lateral-torsional stability of steel web-tapered I-beams", J. Struct. Eng., 124(10), 1208-1216 https://doi.org/10.1061/(ASCE)0733-9445(1998)124:10(1208)
  9. Dowling, P. J., Mears, T. F., Owens, G. W. and Raven, G. K. (1982), "A development in the automated design and fabrication of portal framed industrial buildings", The Structural Engineer, 60A(10), 311-319
  10. Lee, G. C. Morrel, M. L (1975), "Application of AISC design provisions for tapered members", AISC Engineering Journal, 12(1).
  11. Lee, G. C. Morrel M. L. and Ketter, R. L. (1972), "Design of tapered members", Welding search council Bulletin No. 173
  12. Hwang, J. S. Chang K. C. and Lee G. C. (1991) "Seismic behavior of gable frame consisting of tapered members", J. Struct. Eng., 117(3), 808-821 https://doi.org/10.1061/(ASCE)0733-9445(1991)117:3(808)
  13. Yau Jong-Dar (2006), "Stability of tapered I-Beams under torsional moments", Finite. Elem. Anal. Des., v42, 914-927 https://doi.org/10.1016/j.finel.2006.01.008
  14. Krefeld, W. J., Butler, D. J., and Anderson, G. B. (1959), "Welded Cantilever Wedge Beams", Welding Research Supplement, 97-112
  15. Lee, Seong-Hui, Shim, Hyun-ju, Chae, Hung-Suck, Lee, Eun-Taik, Hong, Soon-jo, Choi, Sung-mo (2006), "Evaluation of structural safety of long-span one-storied warehouse building based on non-linear analysis", International Symposium on Steel Structures (ISSS), pp 1340-1348
  16. Li, J. J., Li, G. Q. and Chan, S.-L. (2003), "A second-order inelastic model for steel frames of tapered members with slender web, Engineering structures", v.25 no.8, pp.1033-1043 https://doi.org/10.1016/S0141-0296(03)00043-9
  17. MBMA (2002) Metal Building Systems Manual, Metal Building Manufactufacturers Association.
  18. Prawel, S. P., Morrell, M. L., and Lee, G. C. (1974), "Bending and Buckling Strength of Tapered Structural Members", Welding research supplement, v.53 no.2, pp.75-84
  19. Shim, Hyun ju, Kim, Jong Won, Lee, Seong Hui, Kim, jin Ho, Lee, E.T, Kang, Suck Bin, Choi, sung mo (2006), "Flexural behavior of tapered i-section beams with slender web", international symposium on steel structures (ISSS), pp 1349-1355
  20. Xiao-ting Chu, Jamie Rickard, Long-yuan Li(2005), "Influence of lateral restraint on lateral-torsional buckling of cold-formed steel purlins", Thin-Walled Structures, v.43, pp.800-810 https://doi.org/10.1016/j.tws.2004.10.012