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Title Inelastic Time History Analysis of a 5-Story RC OMRF Considering Inelastic Shear Behavior of Beam-Column Joint
Authors 강석봉 ; 김태용
DOI https://doi.org/10.4334/JKCI.2012.24.6.633
Page pp.633-641
ISSN 1229-5515
Keywords 철근콘크리트 ; 보통모멘트골조 ; 비탄성 시간이력해석 ; 보-기둥 접합부 ; 전단거동 RC ; OMRF ; inelastic time history analysis ; beam-column joint ; shear behavior
Abstract In this study, the effects of the inelastic shear behavior of beam-column joint on the response of RC OMRF are evaluated in the inelastic time history analysis. For an example, a 5-story structure for site class SB and seismic design category C was designed in accordance with KBC2009. Bending moment-curvature relationship for beam and column was evaluated using fiber model and bending moment-rotation relationship for beam-column joint was calculated using simple and unified joint shear behavior model and moment equilibrium relationship. The hysteretic behavior was simulated using three-parameter model suggested in IDARC program. The inelastic time history analysis with PGA for return period of 2400 years showed that the model with inelastic beam-column joint yielded smaller maximum base shear force but nearly equivalent maximum roof displacement and maximum story drift as those obtained from analysis using rigid joint. The maximum story drift satisfied the criteria of KBC2009. Therefore, the inelastic shear behavior of beam-column joint could be neglected in the structural design.