Tests for aseismic performance of RC column-steel beam box type joints
LIU Liping1,2, CUI Ming1,2, XU Jun1,2, YU Jie1, ZHENG Xinyao3, WANG Zhijun1,2, LI Yingmin1,2, LI Ruifeng1,2#br#
1. School of Civil Engineering, Chongqing University, Chongqing 400045, China； 2. Key Laboratory of New
Technology for Construction of Cities in Mountain Area of the Ministry of Education, Chongqing University,
Chongqing 400045, China; 3. Chongqing Poly Real Estate Development Co., Ltd., Chongqing 401147, China
Abstract：Here, to improve aseismic performance of RC column-steel beam (RCS) joints, a box type RCS joint was proposed based on the column through type RCS joint. Based on low cycle repeated loading tests of 4 RCS box type joints, their failure characteristics, load-bearing characteristics and aseismic performance were studied. Effects of reinforcement of additional cover plate at the beam end, inner web spacing and thickness on failure mode, hysteretic energy dissipation characteristics and deformation of the joints were analyzed. The results showed that failure of joint specimens is concentrated in column end and beam end, and joint zone has no failure to meet the design requirement of “strong joint and weak member”; when specimens are damaged, their ductility coefficients are larger than 3.0, and their equivalent viscous damping coefficient are within the range of 0.16-0.27 to have good aseismic performance; joints’ shear forces are mainly exerted on inner web, while outer side plate mainly acts as stirrup and is subjected to parts of shear forces; increasing spacing of inner webs can reduce restraint on end plate of steel beam and strains of inner webs, outer side plates, end plate of steel beam and flange of steel beam; cover plate can increase bending stiffness of beam end and strengthen constraint of end plate of steel beam to reduce strain of flange of steel beam, and significantly increase strain of inner webs and end plate of steel beam; thickening inner webs can strengthen restraint of steel beam end plate to significantly increase strain of steel beam flange, slightly increase strain of steel beam end plate, and slightly decrease strain of inner web; designing box type joints should appropriately increase inner web spacing and choose larger plate thickness; the study results can provide a reference for designing RCS box type joints.
刘立平,崔铭,徐军,余杰,郑歆耀,王志军,李英民,李瑞锋. 钢筋混凝土柱-钢梁盒式节点抗震性能试验研究[J]. 振动与冲击, 2021, 40(15): 189-197.
LIU Liping, CUI Ming, XU Jun, YU Jie, ZHENG Xinyao, WANG Zhijun, LI Yingmin, LI Ruifeng. Tests for aseismic performance of RC column-steel beam box type joints. JOURNAL OF VIBRATION AND SHOCK, 2021, 40(15): 189-197.
［1］高利人. 钢梁-混凝土柱组合框架结构在国外的发展［J］. 建筑结构，2002，32(5)：34-37.
GAO Liren. Development of steel beam-concrete column composite frame structures in foreign countries ［J］. Building Structure, 2002, 32(5): 34-37.
［2］KANNO R. Strength, deformation and seismic resistance of joint between steel beam and reinforced concrete columns ［D］. New York: Cornell University, 1993.
［3］PARRA-MONTESINOS G, WIGHT J K. Seismic response of exterior RC column-to-steel beam connections ［J］. Journal of Structural Engineering, 2000, 126(10): 1113-1121.
［4］PARRA-MONTESINOS G, WIGHT J K. Modeling shear behavior of hybrid RCS beam-column connections ［J］. Journal of Structural Engineering, 2001, 127(1): 3-11.
［5］KURAMOTO H. Seismic resistance of through column type connections for composite RCS systems ［C］// Proceedings of the 11th World Conference on Earthquake Engineering. Acapulco, Mexico, 1996.
［6］KURAMOTO H, NISHIYAMA I. Seismic performance and stress transferring mechanism of through-column-type joints for composite reinforced concrete and steel frames ［J］. Journal of Structural Engineering, 2004, 130(2): 352-360.
［7］DEIERLEIN G, NOGUCHI H. Research on RC/SRC column systems ［C］// Proceedings of the 12th World Conference on Earthquake Engineering, Auckland, New Zealand, 2000.
［8］AIJ Composite RCS Structures Sub-Committee. AIJ design guidelines for composite RCS Joints ［S］. 1994.
［9］FURUKAWA J, ICHIKAWA M, MORIMOTO H, et al. Experimental study on strength and deformation capacity of reinforced concrete columns and steel beams structure joint ［C］// Proceedings of the 12th World Conference on Earthquake Engineering, Auckland, New Zealand, 2000.
［10］毛伟峰，伍云天，肖岩. 高强螺栓连接钢梁-混凝土柱组合节点的抗震性能［J］. 工业建筑，2005，35(11): 1-4.
MAO Weifeng, WU Yuntian, XIAO Yan. Experimental research on seismic behavior of bolted steel beam to RC column connections ［J］. Industrial Construction, 2005, 35(11): 1-4.
［11］李贤，肖岩. 钢筋混凝土柱-钢梁节点的抗震性能研究［J］ .湖南大学学报(自然科学版)，2007，34(2): 1-5.
LI Xian, XIAO Yan. Experimental research on seismic behavior of reinforced concrete column-to-steel beam joints with bolted end-plate ［J］. Journal of Hunan University (Natural Sciences), 2007, 34(2): 1-5.
［12］王哲夫. 钢梁-钢筋混凝土柱柱贯穿形节点受力性能研究［D］. 武汉：武汉理工大学，2007.
［13］郭子雄，朱奇云，刘阳. 装配式钢筋混凝土柱-钢梁框架节点抗震性能试验研究［J］. 建筑结构学报，2012，33(7): 98-105.
GUO Zixiong, ZHU Qiyun, LIU Yang. Experimental study on seismic behavior of a new type of refabricated RC column-steel beam frame connections ［J］. Journal of Building Structures, 2012, 33(7): 98-105.
［14］刘阳，郭子雄，戴静洲. 不同破坏机制的装配式RCS框架节点抗震性能试验研究［J］. 土木工程学报，2013，46(3): 18-28.
LIU Yang, GUO Zixiong, DAI Jingzhou. Experimental study on seismic behavior of prefabricated RCS frame joints with different failure mechanisms ［J］. China Civil Engineering Journal, 2013, 46(3): 18-28.
［15］门进杰，郭智峰，史庆轩. 钢筋混凝土柱-腹板贯通型钢梁混合框架中节点抗震性能试验研究［J］. 建筑结构学报，2014，35(8): 72-79.
MEN Jinjie, GUO Zhifeng, SHI Qingxuan. Experimental study on seismic behavior of a reinforced concrete column-steel beam frame interior joint with various details ［J］. Journal of Building Structures, 2014, 35(8): 72-79.
［16］门进杰，李慧娟，王晓丹. 钢筋混凝土柱钢梁组合节点抗剪承载力研究［J］. 建筑结构，2014，44(6): 74-78.
MEN Jinjie, LI Huijuan, WANG Xiaodan. Research on shear bearing capacity of reinforced concrete column-steel beam composite joint ［J］. Building Structure, 2014, 44(6): 74-78.
［17］王伟，王明兴. 新型钢管柱-H型梁铸钢模块化节点的概念设计与抗震性能评估［J］. 振动与冲击，2014，33(21): 13-20.
WANG Wei, WANG Mingxing. Concept design and aseismic performance evaluation for a novel cast steel modular joint appropriate for steel tubular column-H-beam frame connections ［J］. Journal of Vibration and Shock, 2014, 33(21): 13-20.
［18］金属材料 拉伸试验：第一部分：室温试验方法:GB/T 228.1—2010［S］. 北京：中国标准出版社, 2010.
