DOI QR코드

DOI QR Code

A new steel panel zone model including axial force for thin to thick column flanges

  • Mansouri, Iman (Department of Civil Engineering, Shahid Bahonar University of Kerman) ;
  • Saffari, Hamed (Department of Civil Engineering, Shahid Bahonar University of Kerman)
  • 투고 : 2013.09.03
  • 심사 : 2013.12.15
  • 발행 : 2014.04.25

초록

During an earthquake, steel frame columns can be subjected to high axial forces combined with inelastic rotation demand resulting from story drift. Generally, the whole beam or component can be represented with one element. In elasto-plastic analysis, subdivision is necessary if the plastic deformation occurs within two ends of beams. If effects of the joint panel are necessarily considered in the analysis, the joint panel should be represented with an independent element. It is a special element to represent the shear deformation of the joint panel in the beam-column connection zone. Several analytical models for panel zone (PZ) behavior exist, in terms of shear force-shear distortion relationships. Among these models, the Krawinkler PZ model is the most popular one which is used in the AISC code. Some studies have pointed out that Krawinkler's model gives good results for the range of thin to medium column flanges thickness. This paper, introduces a new model to estimate the response of shear force-shear distortion for the PZ including column axial force. The model is applicable to both thin and thick column flange. To achieve an appropriate PZ mathematical model first, the effects of PZ strength and stiffness on connection response are parametrically studied using finite element models. More than one thousand and four-hundred beam-column connections are included in the parametric study, with varied parameters; then based on analytical results a simple mathematical model is presented. A comparison between the results of proposed method herein with FE analyses shows the average error especially in thick column flange is significantly reduced which demonstrates the accuracy, efficiency, and simplicity of the proposed model.

키워드

참고문헌

  1. American Institute of Steel Construction (AISC) (2002), Seismic Provisions for Structural Steel Buildings, American Institute of Steel Construction, Chicago, IL, USA.
  2. American Institute of Steel Construction (AISC) (2005), Seismic Provisions for Structural Steel Buildings, American Institute of Steel Construction, Chicago, IL, USA.
  3. American Institute of Steel Construction (AISC) (2010), Seismic Provisions for Structural Steel Buildings, American Institute of Steel Construction, Chicago, IL USA.
  4. ANSYS (2011), ANSYS user manual, ANSYS, Inc.
  5. Bertero, V.V., Krawinkler, H. and Popov, E.P. (1973), "Further studies on seismic behavior of steel beam-to-column subassemblages", EERC Rep. No. 73-27, University of California, Berkeley, CA, USA.
  6. Brandonisio, G., De Luca, A. and Mele, E. (2012), "Shear strength of panel zone in beam-to-column connections", J. Construct. Steel Res., 71, 129-142. https://doi.org/10.1016/j.jcsr.2011.11.004
  7. Chen, W.F. and Lui, E.M. (1991), Stability Design of Steel Frames, CRC Press, FL, USA.
  8. El-Tawil, S. (2000), "Panel zone yielding in steel moment connections", Eng. J., 37(3), 120-131.
  9. El-Tawil, S., Mikesell, T., Vidarsson, E. and Kunnath, S.K. (1998), "Strength and ductility of FR welded-bolted connections", Report No. SAC/BD-98/01, SAC Joint Venture.
  10. El-Tawil, S., Vidarsson, E., Mikesell, T. and Kunnath, S.K. (1999), "Inelastic behavior and design of steel panel zones", J. Struct. Eng. ASCE, 125(12), 183-193. https://doi.org/10.1061/(ASCE)0733-9445(1999)125:2(183)
  11. Federal Emergency Management Agency (FEMA) (1995), "Internal guidelines: Evaluation, repair, modification, and design of welded steel moment-frame structures", FEMA-267, Prepared by the SAC Joint Venture for FEMA, FEMA, Washington, D.C., USA.
  12. Federal Emergency Management Agency (FEMA) (1997), "Interim Guideline. Advisory No. 1, supplement to FEMA-267", FEMA-267A/ Rep. SAC-96-03, SAC Joint Venture, Sacramento, CA, USA.
  13. Federal Emergency Management Agency (FEMA) (2000), "Recommended seismic design criteria for new steel moment-frame buildings", FEMA-350, Prepared by the SAC Joint Venture for FEMA, Washington, D.C., USA.
  14. 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
  15. International Conference of Building Officials (ICBO) (1988), Uniform Building Code, 1988 Ed., ICBO, Whittier, CA, USA.
  16. Jin, J. and El-Tawil, S. (2005), "Evaluation of FEMA-350 seismic provisions for steel panel zones", J. Struct. Eng. ASCE, 131(2), 250-258. https://doi.org/10.1061/(ASCE)0733-9445(2005)131:2(250)
  17. Kim, K.D. and Engelhardt, M.D. (2002), "Monotonic and cyclic loading models for panel zones in steel moment frames", J. Construct. Steel Res., 58(5-8), 605-635. https://doi.org/10.1016/S0143-974X(01)00079-7
  18. Kim, T. (2000), "Cover-plate and flange-plate reinforced steel moment-resisting connections", Report No. PEER SAC/BD-00/27, Pacific Earthquake Eng Research Center, University of California at Berkeley, Berkeley, CA, USA.
  19. Krawinkler, H. (1978), "Shear in beam-column joints in seismic design of steel frames", Eng. J., 15 (3), 82-91.
  20. Krawinkler, H., Bertero, V.V. and Popov, E.P. (1971), "Inelastic behavior of steel beam-to-column subassemblages", EERC Rep. No. 71-7, University of California, Berkeley, CA, USA.
  21. Krishnan, S. and Hall, J.F. (2006), "Modeling steel frame buildings in three dimensions. I: Panel zone and plastic hinge beam elements", J. Eng. Mech. ASCE, 132(4), 345-358. https://doi.org/10.1061/(ASCE)0733-9399(2006)132:4(345)
  22. Lee, K.H., Stojadinovic, B., Goel, S.C., Margarin, A.G., Choi, J., Wongkaew, A., Reyher, B.P. and Lee, D.Y. (2000), "Parametric tests on unreinforced connections", SAC Background Document, SAC/BD-00/01, SAC Joint Venture, Richmond, CA, USA.
  23. Li, G.Q. and Li, J.J. (2007), Advanced Analysis and Design of Steel Frames, John Wiley & Sons, England.
  24. Newell, J.D. and Uang, C.M. (2008), "Cyclic behavior of steel wide-flange columns subjected to large drift", J. Struct. Eng. ASCE, 134(8), 1334-1342. https://doi.org/10.1061/(ASCE)0733-9445(2008)134:8(1334)
  25. Popov, E.P. (1987), "Panel zone flexibility in seismic moment joints", J. Construct. Steel Res., 8, 91-118. https://doi.org/10.1016/0143-974X(87)90055-1
  26. Ricles, J.M., Zhang, X., Lu, L.W. and Fisher, J.W. (2004), "Development of Seismic Guidelines for Deep-Column Steel Moment Connections", ATLSS Report No. 04-13.
  27. Sabelli, R. (2001), "Research of improving the design and analysis of earthquake-resistant steel-braced frames", 2000 NEHRP Professional Fellowship Rep., Earthquake Engineering Research Institute, Oakland, CA, USA.
  28. Structural Engineering Association of California (SEAOC) (1975), "Recommended lateral force requirements and commentary", Seismology Committee, SEAOC, Sacramento, CA, USA.
  29. Tsai, K.C. and Popov, E.P. (1988), "Steel beam-column joints in seismic moment resisting frames", Tech. Rep. UCB/EERC-88/19, Earthquake Engrg. Res. Ctr., University of California, Berkeley, CA, USA.

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