Evaluation on Interaction Surface of Plastic Resistance for Exposed-type Steel Column Bases under Biaxial Bending

  • Choi Jae-hyouk (Department of Architecture and Civil Engineering, Kobe University) ;
  • Ohi Kenichi (Department of Architecture and Civil Engineering, Kobe University)
  • Published : 2005.03.01

Abstract

Exposed-type steel column bases are used widely in low-rise building construction. Numerous researchers have examined methods to identify their stiffness and strength, but those studies have heretofore been restricted to in-plane behaviors. This paper presents an experimental investigation of inelastic behaviors of square hollow section (SHS) steel column bases under biaxial bending. Two types of failure modes are considered : anchor bolt yielding and base plate yielding. Different pinching effects and interaction surfaces for biaxial bending are observed for these two modes during bi-directional quasi-static cyclic loading tests. Differences are elucidated using limit analyses based on a simple analytical model.

Keywords

References

  1. AIJ, 1998, Recommendation for Limit State Design of Steel Structures
  2. Bousias, S. N., 1995, 'Load Effects in Column Biaxial Bending with Axial Force,'Journal of Engineering Mechanics, Vol. 121, No. 5, pp. 598-605 https://doi.org/10.1061/(ASCE)0733-9399(1995)121:5(596)
  3. Choi, J. H., Ohi, K., Shimawaki, Y., Oktem, C. and Ito, T. 2003, 'Experimental Study of lnelastic Behavior of Exposed-type steel Column Bases Under Biaxial Bending,' Bulletin of Earthquake Resistant Structure Research Center, Institute of Industrial Science, University of Tokyo, No. 36, May
  4. Choi, J. H., Ohi, K., Oktem, C., Shimawaki, Y. and Ito, T., 2003, 'Inelastic Behavior of Exposed- type steel Column Bases under Biaxial bending (Part 2 : Results of Biaxial Cyclic Loading Tests),' Proc. Of Architectural Research Meetings, Kanto Chapter, AIJ
  5. Choi, J. H. and Ohi, K., 2004, 'Dynamic Characteristic Identification on Steel Column bases Installed in Pendulum- type Earthquake Response Observatory,' KSME International Journal, Vol. 18, pp. 2225-2235
  6. Kadoya, H., Watanabe, T., Suzuki, M., Hagino, T. and Someya, T., 1998, 'Experimental Sturdy on Mechanical Characteristics of Steel Tubular Column Bases,' Journal of of Constructional Steel, Vol. 6, pp. 261-268
  7. Liversley, R. K., 1976, 'Matrix Method of structural Analysis (2nd ed.),' Pergamon Press
  8. Ohi, K., 1993, Limit Analysis : Lecture Note for Training Course in Seismology and Earthquake Engineering of IISEE, JICA, Tsukuba
  9. Ohi, K. , Sun, H. and Ito, T., 2001, 'Matrix Method of Limit Analysis on Framed Structures Considering Interacted Bending and Axial Resistances,' J. Struct. Constr. Eng., AIJ, No. 539, pp. 71-77
  10. Ohi, K., Tanaka, H. and Takanashi, K., 1981, 'Ultimate strength of Steel Column Bases,' J. Struct. Constr. Eng., AIJ, No. 308, pp. 14-23
  11. Watanabe, E., Sugiura, K. and Oyawa, W. O. 2002, 'Effect of Multi-Directional Displacement Path on the Cyclic Behaviour of Rectangular Hollow Steel Columns,' Structural Eng./ Earthquake, JSCE, Vol. 17, No. 1, pp. 69s~85s