Structural Engineering and Mechanics

  • 제29권1호
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  • Pages.37-53
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  • 2008
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Simple nonlinear static analysis of steel portal frame with pitched roof exposed to fire

  • Papadopoulos, Panagis G. (Department of Civil Engineering, Aristotle University of Thessaloniki) ;
  • Papadopoulou, Anastassia K. (Department of Civil Engineering, Aristotle University of Thessaloniki) ;
  • Papaioannou, Kyriakos K. (Department of Civil Engineering, Aristotle University of Thessaloniki)
  • 투고 : 2006.08.22
  • 심사 : 2008.02.26
  • 발행 : 2008.05.10
⟨ 이전 논문 다음 논문 ⟩

초록

Plane steel portal frames, with pitched roof, exposed to fire, are examined. First, a determinate frame is analysed by hand. For flexible columns and shallow roof, snap-through occurs before plastic hinges mechanism is formed. An indeterminate frame with shorter columns and taller roof is also analysed by hand. Then, the same frame is simulated by a truss and a nonlinear static analysis is performed by use of a short computer program. The results of computer analysis by use of truss model are compared with those of analysis by hand and a satisfactory approximation between them is observed.

키워드

참고문헌

  1. Absi, E. (1978), Methodes des Calcul Numérique en Elasticite, Eyrolles, Paris
  2. Argyris, J.H. Editor. F.E.No.Mech. (Finite Elements in Nonlinear Mechanics). International Conferences. Institute for Statics and Dynamics, University of Stuttgart, I. 1978, II. 1981, III. 1984
  3. Bruneau, M., Uang, C.-M. and Whittaker, A. (1997), Ductile Design of Steel Structures. McGraw-Hill
  4. Coda, H.B. and Greco, M.A. (2004), "A simple FEM formulation for large deflection 2D frame analysis, based on position description", Comput. Meth. Appl. Mech. Eng., 193, 3551-3557
  5. Eurocode 3 (1995), Design of Steel Structures. Part 1-2. Fire Resistance. ENV 1993-1-2
  6. Fraternali, F., Angelilo, M. and Fortunato, A. (2002), "A lumped stress method for planar elastic problems and their discrete-continuum approximation", Int. J. Solids Struct., 39, 6211-6240 https://doi.org/10.1016/S0020-7683(02)00472-9
  7. Horne, M.R. (1985), Frame Instability and the Plastic Design of Rigid Frames, in Narayanan R., Editor. "Steel framed structures" Elsevier
  8. Papadopoulos, P.G. and Mathiopoulou, A.K. (2005), "Analysis of portal steel frame exposed to fire by use of a truss model", Proc. of 8th Int. Conf. on Advanced Computational Methods in Heat Transfer, 495-505, Lisbon, 24-26 March
  9. Papadopoulos, P.G. and Karayannis, C.G. (1988), "Seismic analysis of RC frames by network models", Comput. Struct., 28, 253-267
  10. Papadopoulos, P.G. and Xenidis, H.C. (1999(II)), "A truss model with structural instability for the confinement of concrete columns", J. Euro. Earthq. Eng., 57-80
  11. Schlaich, J. and Schäfer, K. (1991), "Designing and detailing structural concrete using strut-and-tie models", Struct. Eng., 69, 113-125
  12. Scholz, H. (1991), "Stability control of pitched roof frames by allowable member depth", J. Constr. Steel Res., 18, 253-267 https://doi.org/10.1016/0143-974X(91)90008-O
  13. Scholz, H. (1988), "A new solution to the snap-through of pitched roof steel frames", J. Constr. Steel Res., 9, 265-285 https://doi.org/10.1016/0143-974X(88)90064-8
  14. Wong, M.B. (2001), "Elastic and plastic methods for numerical modeling of steel structures subject to fire", J. Constr. Steel Res., 57, 1-14 https://doi.org/10.1016/S0143-974X(00)00012-2

피인용 문헌

  1. 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
  2. Buckling analysis of semi-rigid gabled frames vol.55, pp.3, 2015, https://doi.org/10.12989/sem.2015.55.3.605
  3. Simple Nonlinear Static Analysis Using Truss Models for Modeling Snap-through of Thin Shallow Arches vol.215-216, pp.1662-7482, 2012, https://doi.org/10.4028/www.scientific.net/AMM.215-216.685
  4. Numerical and experimental investigation on the temperature distribution of steel tubes under solar radiation vol.43, pp.6, 2012, https://doi.org/10.12989/sem.2012.43.6.725
  5. Nonlinear analysis of thin shallow arches subject to snap-through using truss models vol.45, pp.4, 2008, https://doi.org/10.12989/sem.2013.45.4.521
  6. Flame spread on the pitched roof covering from a single ignition source vol.157, pp.None, 2020, https://doi.org/10.1051/e3sconf/202015706030