Steel and Composite Structures

  • 제21권2호
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  • Pages.357-371
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  • 2016
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
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Shear behavior of exposed column base connections

  • Cui, Yao (State Key Laboratory of Coastal and Offshore Engineering, School of Civil Engineering, Dalian University of Technology)
  • 투고 : 2016.02.03
  • 심사 : 2016.04.05
  • 발행 : 2016.06.10
⟨ 이전 논문 다음 논문 ⟩

초록

Column base connections are critical components in steel structures because they transfer axial forces, shear forces and moments to the foundation. Exposed column bases are quite commonly used in low- to medium-rise buildings. To investigate shear transfer in exposed column base plates, four large scale specimens were subjected to a combination of axial load (compression or tension) and lateral shear deformations. The main parameters examined experimentally include the number of anchor rod, arrangement of anchor rod, type of lateral loading, and axial force ratio. It is observed that the shear resisting mechanism of exposed column base changed as the axial force changed. When the axial force is in compression, the resisting mechanism is rotation type, and the shear force will be resisted by friction force between base plate and mortar layer. The specimens could sustain inelastic deformation with minimal strength deterioration up to column rotation angle of 3%. The moment resistance and energy dissipation will be increased as the number of anchor rods increased. Moreover, moment resistance could be further increased if the anchor rods were arranged in details. When the axial force is in tension, the resisting mechanism is slip type, and the shear force will be resisted by the anchor rods. And the shear resistance was reduced significantly when the axial force was changed from compression to tension. The test results indicated that the current design approach could estimate the moment resistance within reasonable acceptance, but overestimate the shear resistance of exposed column base.

키워드

과제정보

연구 과제 주관 기관 : National Science Fund of China, Central Universities

참고문헌

  1. Ai, W., Tong, G., Zhang, L., Gan, G. and Shen, J. (2012), "Experimental study of shear behavior of anchor bolt connections at steel column bases", J. Build. Struct., 33(3), 80-88.
  2. Akiyama, H. (1985), Seismic Design on Column Bases of Steel Structures, Gihodo Press, Tokyo, Japan.
  3. American Institute of Steel Construction (AISC) (2005a), Seismic Provisions for Structural Steel Buildings, Chicago, IL, USA.
  4. American Institute of Steel Construction (AISC) (2005b), Steel Construction Manual, Chicago, IL, USA.
  5. Architectural Institute of Japan (AIJ) (2006), Recommendations for design of connections in steel structures; Tokyo, Japan.
  6. Astaneh, A., Bergsma, G. and Shen, J.H. (1992), "Behavior and design of base plates for gravity, wind and seismic loads", Proceedings of the National Steel Construction Conference, Las Vegas, NA, USA, June.
  7. Borzouie, J., MacRae, G.A., Chase, J.G., Rodgers, G.W. and Clifton, G.C. (2016), "Experimental studies on cyclic performance of column base strong axis-aligned asymmetric friction connections", J. Struct. Eng., ASCE, 142(1), 04015078. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001327
  8. Burda, J.J. and Itani, A.M. (1999), "Studies of seismic behavior of steel base plates", Report No. CCEER 99-7; Center for Civil Engineering Earthquake Research, Department of Civil Engineering, Universtiy of Nevada, Reno, NA, USA.
  9. Burdette, E.G., Perry, T.C. and Funk, R.R. (1987), Test of Undercut Anchors, ACI Special Publication SP-103.
  10. Chi, H. and Liu, J. (2012), "Seismic behavior of post-tensioned column base for steel self-centering moment resisting frame", J. Constr. Steel. Res., 78, 117-130. https://doi.org/10.1016/j.jcsr.2012.07.005
  11. Cook, R.A. and Klingner, R.E (1992), "Behavior of multiple-anchor steel-to-concrete connections with surface mounted baseplates", Anchors in Concrete - Design and Behavior SP, ACI, 130, 61-122.
  12. Cui, Y., Nagae, T. and Nakashima, M. (2009), "Hysteretic behavior and strength capacity of shallowly embedded steel column bases", J. Struct. Eng., ASCE, 135(10), 1231-1238. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000056
  13. Cui, Y., Kishiki, S. and Yamada, S. (2015), "Seismic behavior of braced frame column base connections", Behavior of Steel Structures in Seismic Areas (STESSA2015), Shanghai, China, July.
  14. Demir, S., Husem, M. and Pul, S. (2014), "Failure analysis of steel column-RC base connections under lateral cyclic loading", Struct. Eng. Mech., Int. J., 50(4), 459-469. https://doi.org/10.12989/sem.2014.50.4.459
  15. DeWolf, J.T. (1982), "Column base plates", Struct. Eng. Practice, 1:1, 39-51.
  16. European Committee for Standardization (CEN) (1992), ENV 1993 Eurocode 3; Design of steel structures, Brussels, Belgium.
  17. Fisher, J.M. and Kloiber, L.A. (2006), Base Plate and Anchor Rod Design, (2nd Edition), Steel Design Guide Series No. 1, AISC, Chicago, IL, USA.
  18. Grauvilardell, J.E., Lee, D., Ajar, J.F. and Dexter, R.J. (2005), "Synthesis of design, testing and analysis research on steel column base plate connections in high seismic zones (ST-04-02)", Department of Civil Engineering, University of Minnesota, Minneapolis, MN, USA.
  19. Japanese Society of Steel Construction (JSSC) (2009), Recommendation and Commentary for Construction of Exposed Column Base with Structural Anchor Bolts, Tokyo, Japan.
  20. Kanvinde, A.M., Grilli, D.A. and Zareian, F. (2012), "Rotational stiffness of exposed column base connections: experiments and analytical models", J. Struct. Eng., ASCE, 138(5), 549-560. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000495
  21. Kanvinde, A.M., Higgins, P., Cooke, R.J., Perez, J. and Higgins, J. (2015), "Column base connections for hollow steel sections: seismic performance and strength models", J. Struct. Eng., ASCE, 141(7), 04014171. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001136
  22. Nagae, T., Ikenaga, M., Nakashima, M. and Suita, K. (2006), "Shear friction between base plate and base mortar in exposed steel column base", J. Struct. Construct. Eng., Architect. Inst. Japan, 606, 217-223.
  23. Rabbat, B.G. and Russel, H.G (1985), "Friction coefficient of steel on concrete or grout", J. Struct. Eng., ASCE, 111(3), 505-515. https://doi.org/10.1061/(ASCE)0733-9445(1985)111:3(505)
  24. Rotz, J.V. and Reifschneider, M. (1989), "Combined axial and shear load capacity of embedments in concrete", Proceedings of the 10th Conference on Structural Mechanics in Reactor Technology, Anaheim, CA, USA.
  25. Sato, K. (1987), "A research on the aseismic behavior of steel column base for evaluating its strength capacity and fixity", Report No. 69; Kajima Institute of Construction Technology, Tokyo, Japan.
  26. Stamatopoulos, G.N. and Ermopoulos, J.C. (2011), "Experimental and analytical investigation of steel column bases", J. Constr. Steel. Res., 67(9), 1341-1357. https://doi.org/10.1016/j.jcsr.2011.03.007
  27. Thambiratnam, D.P. and Paramasivam, P. (1986), "Base plate under axial loads and moments", J. Struct. Eng., ASCE, 112(5), 1166-1181. https://doi.org/10.1061/(ASCE)0733-9445(1986)112:5(1166)
  28. Xiao, N., Li, S. and Zhao, W. (2010), "Calculation of shear capacity of shear connector in steel column base", J. Build. Struct., 31(7), 86-93.

피인용 문헌

  1. Behavior of exposed column-base connections with four internal anchor bolts under seismic loading vol.34, pp.None, 2016, https://doi.org/10.1016/j.istruc.2021.07.016