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Title |
Design of Rigid Joints Using Strut-Tie Model
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Keywords |
스터럿-타이 모델 ; 뼈대구조물 ; 강절점영역 ; 선형탄성유한요소해석 ; 보강철근 Strut-tie model ; Rigid joints ; Linear elastic finite element method ; Reinforcement details |
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Abstract |
In order to design rigid zone area of frame structures, it is important to predict the direction change of internal stresses according to the bending moment acting on the joint region. In this study, it was examined whether current highway bridge design standards are useful to design different types of rigid joints having a various haunch shapes. In addition, stress distributions of inside of various rigid joints were inspected using the linear elastic finite element analysis. Based on the results of finite element analysis, the strut-tie models to design rigid joints are proposed. Suggested by this study, the strut-tie models have a same level of accuracy to a linear elastic finite element analysis. The proposed strut-tie models will be useful to design reinforcement details of rigid joints having a various haunch types.
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