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Effect of local web buckling on the cyclic behavior of reduced web beam sections (RWBS)

  • Akrami, Vahid (Civil Engineering Department, Amirkabir University of Technology) ;
  • Erfani, Saeed (Civil Engineering Department, Amirkabir University of Technology)
  • Received : 2014.07.30
  • Accepted : 2014.09.05
  • Published : 2015.03.25

Abstract

Application of reduced web beam section (RWBS) as a sacrificial fuse element has become a popular research field in recent years. Weakening of beam web in these connections may cause local web buckling around the opening area which can affect cyclic behavior of connection including: maximum load carrying capacity, strength degradation rate, dissipated energy, rotation capacity, etc. In this research, effect of local web buckling on the cyclic behavior of RWBS connections is investigated using finite element modeling (FEM). For this purpose, a T-shaped moment connection which has been tested under cyclic loading by another author is used as the reference model. Fracture initiation in models is simulated using Cyclic Void Growth Model (CVGM) which is based on micro-void growth and coalescence. Included in the results are: effect of opening corner radii, opening dimensions, beam web thickness and opening reinforcement. Based on the results, local web buckling around the opening area plays a significant role on the cyclic behavior of connection and hence any parameter affecting the local web buckling will affect entire connection behavior.

Keywords

References

  1. ANSI/AISC 341 (2010), Seismic Provisions for Structural Steel Buildings; American Institute of Steel Construction, Chicago, IL, USA.
  2. ASCE 23-97 (1997), Proposed specification for structural steel beams with web opening; American Society of Civil Engineers (ASCE).
  3. Chung, K.F., Liu, T.C.H. and Ko, A.C.H. (2001), "Investigation on Vierendeel mechanism in steel beams with circular web openings", J. Construct. Steel Res., 57(5), 467-490. https://doi.org/10.1016/S0143-974X(00)00035-3
  4. Darwin, D. (2000), "Design of composite beams with web openings", Progress Struct. Eng. Mater., 2(2), 157-163. https://doi.org/10.1002/1528-2716(200004/06)2:2<157::AID-PSE23>3.0.CO;2-A
  5. Erfani, S., Babazadeh Naseri, A. and Akrami, V. (2012), "The beneficial effects of beam web opening in seismic behavior of steel moment frames", Steel Compos. Struct., Int. J., 13(1), 35-46. https://doi.org/10.12989/scs.2012.13.1.035
  6. Frost, R.W. and Leffler, R.E. (1971), "Fatigue tests of beams with rectangular web holes", ASCE J. Struct. Div., 97(2), 509-527.
  7. Hancock, J.W. and Mackenzie A.C. (1976), "On the mechanisms of ductile failure in high-strength steel subjected to multi-axial stress-states", J. Mech. Phys. Solid., 24(2-3), 147-160. https://doi.org/10.1016/0022-5096(76)90024-7
  8. Hedayat, A.A. and Celikag, M. (2009), "Post-Northridge connection with modified beam end configuration to enhance strength and ductility", J. Construct. Steel Res., 65(7), 1413-1430. https://doi.org/10.1016/j.jcsr.2009.03.007
  9. Kanvinde, A.M. and Deierlein G.G. (2004), "Micromechanical simulation of earthquake induced fracture in steel structures", Report No. 145; Blume Earthquake Engineering Center, Stanford University, Stanford, CA, USA.
  10. Kazemi, M.T. and Erfani, S. (2007), "Analytical study of special girder moment frames using a mixed shear-flexural link element", Can. J. Civil Eng., 34(9), 1119-1130. https://doi.org/10.1139/l07-037
  11. Kazemi, M.T., Momenzadeh, S.B. and Hoseinzadeh Asl, M. (2012), "Study of reduced beam section connections with web opening", Proceedings of the 15th World Conference on Earthquake Engineering (15WCEE), Lisbon, Portugal, September.
  12. Lee, E.T., Chang, K.H., Shim, H.J. and Kim, J.H. (2004), "Local buckling behavior of steel members with web opening under cyclic loading", Proceedings of the 7th Pacific Structural Steel Conference (7PSSC), Long Beach, CA, USA, March.
  13. Lepage, A., Aschheim, M. and Senescu, R. (2004), "Shear-yielding steel outriggers for high-rise construction", Proceedings of the 13the World Conference on Earthquake Engineering (13WCEE), Vancouver, Canada, August.
  14. Liu, T.C.H. and Chung, K.F. (2003), "Steel beams with large web openings of various shapes and sizes: finite element investigation", J. Construct. Steel Res., 59(9), 1159-1176. https://doi.org/10.1016/S0143-974X(03)00030-0
  15. Myers, A.T., Deierlein, G.G. and Kanvindeh, A. (2009), "Testing and probabilistic simulation of ductile fracture initiation in structural steel components and weldments", Report No. 170; Blume Earthquake Engineering Center, Stanford University, Stanford, CA, USA.
  16. Redwood, R.G. and Cho, S.H. (1993), "Design of steel and composite beams with web openings", J. Construct. Steel Res., 25(1-2), 23-41. https://doi.org/10.1016/0143-974X(93)90050-3
  17. Redwood, R.G. and Uenoya, M. (1979), "Critical loads for webs with holes", ASCE J. Struct. Div., 105(10), 2053-2067.
  18. Rice, J.R. and Tracey, D.M. (1969), "On the ductile enlargement of voids in triaxial stress fields", J. Mech. Phys. Solid., 17(3), 201-217. https://doi.org/10.1016/0022-5096(69)90033-7
  19. Shinde, H., Kurobane, Y., Azuma, K. and Dale, K. (2003), "Additional full-scale testing of beam-to-column connections with improvements in welded joints", Proceedings of the 13th International Offshore and Polar Engineering Conference, Honolulu, HI, USA, May.
  20. Tsavdaridis, K.D. and D'Mello, C. (2012), "Optimisation of novel elliptically-based web opening shapes of perforated steel beams", J. Construct. Steel Res., 76, 39-53. https://doi.org/10.1016/j.jcsr.2012.03.026
  21. Yang, Q., Li, B. and Yang, N. (2009), "Aseismic behaviors of steel moment resisting frames with opening in beam web", J. Construct. Steel Res., 65(6), 1323-1336. https://doi.org/10.1016/j.jcsr.2009.01.007
  22. Zhou, H., Wanga, Y., Shi, Y, Xiong, J. and Yang, L. (2012), "Extremely low cycle fatigue prediction of steel beam-to-column connection by using a micro-mechanics based fracture model", Int. J. Fatigue, 48, 90-100.

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