Analytical Study on Hybrid Precast Concrete （分析研究混合预制混凝土）.pdfVIP

Journal of the Korea Concrete Institute Vol. 25, No. 6, pp. 631~639, December, 2013 /10.4334/JKCI.2031 하이브리드 프리캐스트 보-기둥 접합부의 해석적 연구 최창식 1) ‧ 김승현 1) ‧ 최윤철 2) ‧ 최현기 1)* 1)한양대학교 건축공학과 2)청운대학교 건축설비소방학과 Analytical Study on Hybrid Precast Concrete Beam-Column Connections Chang-Sik Choi,1) Seung-Hyun Kim,1) Yun-Cheul Choi,2) and Hyun-Ki Choi1)* 1)Dept. of Architectural Engineering, Hanyang University, Seoul 133-791, Korea 2)Dept. of Architectural Environmental Engineering and Building Service, ChungWoon Univ., Hongseong 350-803, Korea ABSTRACT Non-linear finite element analysis for newly developed precast concrete details for beam-to-column connection which can be used in moderate seismic region was carried out in this study. Developed precast system is based on composite structure and which have steel tube in column and steel plate in beam. Improving cracking strength of joint under reversed cyclic loading, joint area was casted with ECC (Engineering Cementitious Composites). Since this newly developed precast system have complex sectional properties and newly developed material, new analysis method should be developed. Using embedded elements and models of non-linear finite element analysis program ABAQUS previously tested specimens were successfully analyzed. Analysis results show comparatively accurate and conservative prediction. Using finite element model, effect of axial load magnitude and flexural strength ratio were investigated. Developed connection have optimized performance under axial load of 10~20% of compressive strength of column. Plastic hinge was successfully developed with flexural strength ratio greater than 1.2. Keywords : beam-to-column j