International journal of steel structures (국제강구조저널)

Korean Society of Steel Construction (한국강구조학회)
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Hysteretic Behavior of RHS Columns Under Random Cyclic Loading Considering Local Buckling

  • Yamada, Satoshi (Laboratory for Future Interdisciplinary Research of Science and Technology, Tokyo Institute of Technology) ;
  • Ishida, Takanori (Laboratory for Future Interdisciplinary Research of Science and Technology, Tokyo Institute of Technology) ;
  • Jiao, Yu (Faculty of Engineering, Tokyo City University)
  • Received : 2017.08.08
  • Accepted : 2018.05.09
  • Published : 2018.12.31
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Abstract

In this paper, a hysteretic model of rectangular hollow section (RHS) columns that includes the deteriorating range caused by local buckling is proposed. The proposed model consists of the skeleton curve, the Bauschinger part that appears before reaching the maximum strength, the strength increasing part of the deteriorating range, and the unloading part. Of these, the skeleton curve, including the deterioration range caused by local buckling, which is considered to be equivalent to the load-deformation relationship under monotonic loading, is obtained through an analytical method. Bi-linear hysteretic models based on experimental results are applied to the Bauschinger part and the strength increasing part. The elastic stiffness is applied to the unloading part. The proposed model is verified by comparing with experimental results of RHS columns under monotonic and cyclic loading.

Keywords

References

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