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A Study on Seismic Performance of High-Strength Steel(POSTEN60, POSTEN80) Pipe-Section Piers using 3-Dimensional Elastic-Plastic Finite Deformation Analysis

3차원 탄소성 유한변위해석을 이용한 고강도(POSTEN60, POSTEN80) 원형강교각의 내진성능에 관한 연구

  • 장경호 (중앙대학교 공과대학 건설환경공학과) ;
  • 장갑철 (중앙대학교 일반대학원 토목공학과) ;
  • 강재훈 (중앙대학교 공과대학 건축학과)
  • Published : 2004.12.01

Abstract

Recently, as steel structures become higher and more long-spanned, application of high-strength steels is increasing gradually. For seismic design of steel structures using high-strength steels(POSTEN60, POSTEN80), analytical method, can describe the large deformation and inelastic cyclic behavior generated by non-proportional cyclic loading, are required. In this paper, cyclic plasticity model was proposed by results of monotonic loading tests ant cyclic loading tests. Three-dimensional finite element analysis is developed by using proposed model and finite deformation theory and verified as compare with experiment result. Using 3-dimensional elastic-plastic finite deformation analysis, seismic analysis of high-strength steel pipe-section piers are carried out. Also, seismic performance of high-strength steel pipe-section piers in parameter of diameter-thickness ratio was clarified.

Keywords

high-strength steels;steel pipe-section pier;3-dimensional finite deformation analysis;cyclic plasticity model

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