Steel and Composite Structures

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Strength and stiffness modeling of extended endplate connections with circular and rectangular bolt configurations

  • Hantouche, Elie G. (Department of Civil and Environmental Engineering, Faculty of Engineering and Architecture, American University of Beirut (AUB)) ;
  • Mouannes, Elie N. (Department of Civil and Environmental Engineering, Faculty of Engineering and Architecture, American University of Beirut (AUB))
  • Received : 2015.10.19
  • Accepted : 2016.10.11
  • Published : 2016.10.10
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Abstract

The results of a series of finite element (FE) simulations and experimental studies are used to develop strength and stiffness models that predict the failure capacity and response characteristics of unstiffened extended endplate connections with circular and rectangular bolt configurations associated with deep girders. The proposed stiffness models are composed of multi-linear springs which model the overall extended endplate/column flange system deformation and strength of key-components. Comparison of model predictions with FE and experimental results available in the literature show that the proposed models accurately predict the strength and the response of extended endplate/column system with circular and rectangular bolt configurations. The effect of the bolt configuration (circular and rectangular) on the prying phenomenon encountered in the unstiffened extended endplate/column system was investigated. Based on FE results, extended endplate with circular bolt configuration has a more ductile behavior and exhibits higher total prying forces. The proposed models can be used to design connections that cover all possible failure modes for extended endplate with circular bolt configuration. This study provides guidelines for engineers to account for the additional forces induced in the tension bolts and for the maximum rotational capacity demand in the connection which are required for seismic analysis and design.

Keywords

Acknowledgement

Supported by : American University of Beirut Research Board, Lebanese National Council for Scientific Research (LNCSR)

References

  1. Akgonen, A.I., Yorgun, C. and Vatansever, C. (2015), "Cyclic behavior of extended end-plate connections with European steel shapes", Steel Compos. Struct., Int. J., 19(5), 1185-1201. https://doi.org/10.12989/scs.2015.19.5.1185
  2. ANSI/AISC Committee 358 (2010), Prequalified Connections for Special and Intermediate Steel Moment Frames for Seismic Applications; American Institute of Steel Construction 358-10, Chicago, IL, USA.
  3. ANSI/AISC 360 (2010), Specification for Structural Steel Buildings; American Institute of Steel Construction 360-10, Chicago, IL, USA.
  4. Bai, R., Chan, S.L. and Hao, J.P. (2015), "Improved design of extended end-plate connection allowing for prying effects", J. Construct. Steel Res., 113, 13-27. https://doi.org/10.1016/j.jcsr.2015.05.008
  5. Coelho, A.M.G., Bijlaard, F.S. and da Silva, L.S. (2004), "Experimental assessment of the ductility of extended end plate connections", Eng. Struct., 26(9), 1185-1206. https://doi.org/10.1016/j.engstruct.2000.09.001
  6. Comite Europenne de Normalisation CEN, (Ed.) (2005), EN 1993-1-1: Eurocode 3: Design of Steel Structures. Part 1-1: General Rules and Rules for Buildings; Eurocode 3, Brussels, Belgium.
  7. Douty, R.T. and McGuire, W. (1965), "High strength bolted moment connections", J. Struct. 725 Div., 91(2), 101-128.
  8. Faella, C., Piluso, V. and Rizzano, G. (1997), "A new method to design extended end plate connections and semirigid braced frames", J. Construct. Steel Res., 41(1), 61-91. https://doi.org/10.1016/S0143-974X(97)00001-1
  9. Ghassemieh, M., Baei, M., Kari, A., Goudarzi, A. and Laefer, D.F. (2015), "Adopting flexibility of the endplate connections in steel moment frames", Steel Compos. Struct., Int. J., 18(5), 1215-1237. https://doi.org/10.12989/scs.2015.18.5.1215
  10. Hantouche, E.G., Kukreti, A.R. and Rassati, G.A. (2012), "Investigation of secondary prying in thick builtup T-stub connections using nonlinear finite element modeling", Eng. Struct., 36, 113-122. https://doi.org/10.1016/j.engstruct.2011.11.030
  11. Hantouche, E.G., Kukreti, A.R., Rassati, G.A. and Swanson, J.A. (2013), "Modified stiffness model for thick flange in built-up T-stub connections", J. Construct. Steel Res., 81, 76-85. https://doi.org/10.1016/j.jcsr.2012.11.009
  12. Hantouche, E.G., Kukreti, A.R., Rassati, G.A. and Swanson, J.A. (2015), "Prying models for strength in thick-flange built-up t-stubs with complete joint penetration and fillet welds", J. Struct. Eng., 141(2), 04014102. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001051
  13. Hu, J.W., Leon, R.T. and Park, T. (2012), "Mechanical models for the analysis of bolted T-stub connections under cyclic loads", J. Construct. Steel Res., 78, 45-57. https://doi.org/10.1016/j.jcsr.2012.05.011
  14. Katula, L. and Dunai, L. (2015), "Experimental study on standard and innovative bolted end-plate beam-tobeam joints under bending", Steel Compos. Struct., Int. J., 18(6), 1423-1450. https://doi.org/10.12989/scs.2015.18.6.1423
  15. Kiamanesh, R., Abolmaali, A. and Razavi, M. (2013), "Effect of circular bolt pattern on behavior of extended end-plate connection", J. Struct. Eng., 139(11), 1833-1841. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000765
  16. Kukreti, A.R., Murray, T.M. and Abolmaali, A. (1987), "End-plate connection moment-rotation relationship", J. Construct. Steel Res., 8, 137-157. https://doi.org/10.1016/0143-974X(87)90057-5
  17. Lemonis, M.E. and Gantes, C.J. (2009), "Mechanical modeling of the nonlinear response of beam-to-column joints", J. Construct. Steel Res., 65(4), 879-890. https://doi.org/10.1016/j.jcsr.2008.11.007
  18. Liu, X. and Wang, Y. (2015), "Influence of extended end-plate connection construction parameters change on prying force in extended end plate", World Inform. Earthq. Eng., 33(3), 148-155.
  19. Morrison, M., Schweizer, D. and Hassan, T. (2015), "An innovative seismic performance enhancement technique for steel building moment resisting connections", J. Construct. Steel Res., 109, 34-46. https://doi.org/10.1016/j.jcsr.2015.02.010
  20. Piluso, V. and Rizzano, G. (2008), "Experimental analysis and modelling of bolted T-stubs under cyclic loads", J. Construct. Steel Res., 64(6), 655-669. https://doi.org/10.1016/j.jcsr.2007.12.009
  21. Piluso, V., Faella, C. and Rizzano, G. (2001), "Ultimate behavior of bolted T-stubs. II: Model validation", J. Struct. Eng., 127(6), 694-704. https://doi.org/10.1061/(ASCE)0733-9445(2001)127:6(694)
  22. Pucinotti, R. (2001), "Top-and-seat and web angle connections: prediction via mechanical model", J. Construct. Steel Res., 57(6), 663-696. https://doi.org/10.1016/S0143-974X(01)00007-4
  23. Rassati, G.A., Leon, R.T. and Noe, S. (2004), "Component modeling of partially restrained composite joints ]under cyclic and dynamic loading", J. Struct. Eng., 130(2), 343-351. https://doi.org/10.1061/(ASCE)0733-9445(2004)130:2(343)
  24. Schweizer, D.Q. (2013), "Experimental investigation of innovative seismic performance enhancement techniques for steel building beam to column moment connections", Ph.D. Dissertation; North Carolina State University, Raleigh, NC, USA.
  25. Sumner, E.A. and Murray, T.M. (2002), "Behavior of extended end-plate moment connections subject to cyclic loading", J. Struct. Eng., 128(4), 501-508. https://doi.org/10.1061/(ASCE)0733-9445(2002)128:4(501)
  26. Swanson, J.A. (2002), "Ultimate strength prying models for bolted T-stub connections", Eng. J., 39(3), 136-147.

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