A Study on the Damage of Steel Square Tubular Columns under Cyclic Loading

반복재하를 받는 각형강관기둥의 손상에 관한 연구

  • 박연수 (전남대학교 토목공학과) ;
  • 전동호 (전남대학교 토목공학과) ;
  • 서병철 (전남대학교 토목공학과) ;
  • 김욱 (전남대학교 토목공학과) ;
  • 최동호 (한양대학교 토목공학과)
  • Received : 2003.05.07
  • Accepted : 2003.07.16
  • Published : 2003.08.27

Abstract

This study proposed a damage index for steel members and examined a process where steel square tubular columns under cycle loading failed to meet the damage index. A nonlinear analysis was carried out and a damage process analyzed using a finite element program. Material properties and strain characteristics were obtained from material testing. The effect on the damage of members was analyzed according to varying kinds of steels and conditions of loading based on material testing results. According to strain characteristics and cumulative plastic strain of each variable, the effect of conditions of loading and kinds of steels on the damage could be estimated quantitatively.

Acknowledgement

Supported by : 한국과학재단

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