Tests for aseismic performance of welded joints between flange-connected square steel tube column and truss
LIU Xuechun1,2, WANG Yue1, ZHANG Ailin1
1. Beijing Municipal Engineering Technology Research Center for High-rise and Long-span Prestressed Steel Structures, Beijing University of Technology, Beijing 100124, China;
2. Key Laboratory of Earthquake Engineering and Structural Retrofit of Beijing, Beijing University of Technology, Beijing 100124, China
Abstract：Here, six full-size welded joints between flange-connected square steel tube column and truss with different beam cross-section sizes were studied through low cycle repeated load tests and finite element analysis (FEA). Upper and lower steel tube columns and column base were connected onsite with flanges and high-strength bolts, and the column base and truss beam were welded in factory with vertical connection plates, flanges and axillary plates to form welded joints. This kind joints could be applied in prefabricated multi-story and high-rise steel structures to realize onsite full assembly with bolts. The test results showed that the cross-section size of truss beam has little influence on the failure mode of joints, the joints with axillary plates are all failed due to repeated loading causing tearing of truss chord members, there are good plastic deformations developed before failure, and the root weld of joints without axillary plate is fractured; joints with axillary plate have better ductility, ultimate load-bearing capacity and energy-dissipation capacity, and their plastic rotating capacity is larger than the minimum requirement of 0.03 rad in aseismic code; truss beam cross-section size significantly affects joints’ mechanical performances, the larger the chord section size, the higher the ultimate load-bearing capacity; the section size of web member has little influence on the ultimate load-bearing capacity, the larger the web section size, the better the ductility of joints and the stronger the energy dissipation capacity of joints; the change of bolt tension at column flange is extracted using finite element software, the column-column flange connection can be approximately rigid; the simplified calculation formulas of joints’ yield load and ultimate load are derived.
刘学春,王玥,张爱林. 法兰连接方钢管柱-桁架焊接节点抗震性能试验研究[J]. 振动与冲击, 2021, 40(19): 200-211.
LIU Xuechun, WANG Yue, ZHANG Ailin. Tests for aseismic performance of welded joints between flange-connected square steel tube column and truss. JOURNAL OF VIBRATION AND SHOCK, 2021, 40(19): 200-211.
［1］张爱林. 工业化装配式高层钢结构体系创新、标准规范编制及产业化关键问题［J］. 工业建筑, 2014, 44(8): 1-6.
ZHANG Ailin. The key issues of system innovation, drawing up standard and industrialization for modularized prefabricated high-rise steel structures ［J］. Industrial Construction, 2014, 44(8): 1-6.
［2］LIU X C, ZHANG A L, JING M, et al. Design and model test of a modularized prefabricated steel frame structure with inclined braces ［J］. Advances in Materials Science and Engineering, 2015(5):1-12.
［3］刘洪波, 谢礼立, 邵永松. 钢框架结构的震害及其原因［J］. 世界地震工程, 2006, 22(4): 47-51.
LIU Hongbo, XIE Lili, SHAO Yongsong. The earthquake damage of steel frame buildings and the causes of brittle fracture ［J］. World Earthquake Engineering, 2006, 22(4): 47-51.［4］NAKASHIMA M, INOUE K, TADA M. Classification of damage to steel buildings observed in the 1995 Hyogoken-Nanbu earthquake ［J］. Engineering Structures, 1998, 20(4/5): 271-281.
［5］POPOV E P, YANG T, CHANG S. Design of steel MRF connections before and after 1994 Northridge earthquake ［J］. Engineering Structures, 1998, 20(12): 1030-1038.
［6］陈以一, 王伟， 赵宪忠. 钢结构体系中节点耗能能力研究进展与关键技术［J］. 建筑结构学报, 2010, 31(6): 81-88.
CHEN Yiyi, WANG Wei, ZHAO Xianzhong. Development and key technical issues on energy dissipation capacity of joints in steel structures ［J］. Journal of Building Structures, 2010, 31(6): 81-88.
［7］LIU X C, ZHOU X J, ZHANG A L, et al. Design and compilation of specifications for a modular prefabricated high-rise steel frame structure with diagonal braces. Part I： integral structural design ［J］. The Structural Design of Tall and Special Buildings, 2017, 27(2): e1415.
［8］LIU X C, HE X N, ZHANG A L, et al. Design and specification of a modular prefabricated high-rise steel frame structure with diagonal braces. Part II：elastic-plastic time-history analysis and joint design ［J］. The Structural Design of Tall and Special Buildings, 2017, 27(2): e1414.
［9］XU Y L, LU L F, ZHENG H. Parametric study of weak-axis beam-to-column composite connections with asymmetrical reduced beam section ［J］. International Journal of Steel Structures, 2019, 19(2): 351-365.
［10］王海涛, 张素清, 霍静思. 狗骨式钢结构梁柱节点的冲击荷载试验研究和有限元分析［J］. 振动与冲击, 2018, 37(11): 107-114.
WANG Haitao, ZHANG Suqing, HUO Jingsi. Tests and FE analysis for impact behavior of RBS beam-column connections of steel frames ［J］. Journal of Vibration and Shock, 2018, 37(11): 107-114.
［11］刘明明, 蒋红英. 腹板开孔处设置加劲肋的梁柱节点的抗震性能研究［J］. 钢结构, 2018, 33(11): 7-15.
LIU Mingming, JIANG Hongying. Research on seismic behavior of beam-column connections with stiffeners at web openings ［J］. Steel Construction, 2018, 33(11): 7-15.
［12］董建莉, 王燕, 庄鹏, 等.腋板加强型节点钢框架抗震性能试验研究［J］.土木工程学报, 2016, 49(1): 69-79.
DONG Jianli, WANG Yan, ZHUANG Peng, et al. Experimental study on seismic behavior of steel frames with haunch reinforced section joints ［J］. China Civil Engineering Journal, 2016, 49(1): 69-79.
［13］王萌, 柯小刚. 带LYP160钢连接组件的扩翼型盖板连接节点抗震行为研究［J］. 工程力学, 2019, 36(8): 149-160.
WANG Meng, KE Xiaogang. Seismic behavior of widened flange connections with LYP160 steel components ［J］. Engineering Mechanic, 2019, 36(8): 149-160.
［14］马人乐, 杨阳, 陈桥生, 等. 长圆孔变型性高强螺栓节点抗震性能试验研究［J］. 建筑结构学报, 2009, 30(1): 101-106.
MA Renle, YANG Yang, CHEN Qiaosheng, et al. Seismic performance testing study on high strength bolt connections with slotted holes ［J］. Journal of Building Structures, 2009, 30(1): 101-106.
［15］周颖, 吕西林. 摇摆结构及自复位结构研究综述［J］. 建筑结构学报, 2011, 32(9):1-10.
ZHOU Ying, L Xilin. State-of-the-art on rocking and self-centering structures ［J］. Journal of Building Structures, 2011, 32(9): 1-10.
［16］陈聪, 吕西林, 姜淳. 连梁可更换构件及连接的试验和模拟分析［J］.世界地震工程, 2018, 34(1): 78-86.
CHEN Cong, L Xilin, JIANG Chun. Experimental and numerical analysis of replaceable device and connection in coupling beams ［J］. World Earthquake Engineering, 2018, 34(1): 78-86.
［17］吕西林, 陈云, 毛苑君. 结构抗震设计的新概念:可恢复功能结构［J］. 同济大学学报(自然科学版), 2011, 39(7): 941-948.
L Xilin, CHEN Yun, MAO Yuanjun. Experimental and numerical analysis of replaceable device and connection in coupling beams ［J］. Journal of Tongji University (Natural Science), 2011, 39(7): 941-948.
［18］张艳霞, 江锟, 孙宇, 等. 中间柱型阻尼器装配式自复位钢框架数值模拟［J］. 建筑结构学报, 2018, 39(增刊1): 93-102.
ZHANG Yanxia, JIANG Kun, SUN Yu, et al. Numerical simulation toward prefabricated self-centering steel frame with intermediate column containing friction dampers ［J］. Journal of Building Structures, 2018, 39(Suppl. 1): 93-102.
［19］张艳霞, 叶吉健, 杨凡, 等. 自复位钢框架结构抗震性能动力时程分析［J］.土木工程学报, 2015, 48(7): 30-40.
ZHANG Yanxia, YE Jijian, YANG Fan, et al. Seismic behavior time-history analysis of integral steel self-centering moment resisting frame ［J］. China Civil Engineering Journal, 2015, 48(7): 30-40.
［20］TAKHIROV S M, POPOV E P. Bolted large seismic steel beam-to-column connections. Part 2: numerical nonlinear analysis ［J］. Engineering Structures, 2002, 24(12):1535-1545.
［21］王鹏, 王湛, 潘建荣, 等. 带加劲肋顶底角钢梁柱连接节点试验研究［J］. 建筑结构学报, 2017, 38(10):21-28.
WANG Peng, WANG Zhan, PAN Jianrong, et al. Experimental investigation on behavior of stiffened top and seat angle beam-to-column connections in steel frame ［J］. Journal of Building Structures, 2017, 38(10): 21-28.
［22］戴明明, 陶忠, 钱立, 等. 冷弯薄壁C型钢桁架梁柱节点抗震性能试验研究［J］. 建筑结构, 2018, 48(6): 46-50.
DAI Mingming, TAO Zhong, QIAN Li, et al. Experimental study on seismic performance of cold-formed thin-walled C-shaped steel truss beam-column joints ［J］. Building Structure, 2018, 48(6): 46-50.
［23］李斌, 曹芙波, 赵根田. 冷弯C型钢节点抗震性能的研究与分析［J］. 土木工程学报, 2008, 41(9): 34-39.
LI Bin, CAO Fubo, ZHAO Gentian. Investigation and analysis of seismic performance of cold-formed C-section steel joints ［J］. China Civil Engineering Journal, 2008, 41(9): 34-39.
［24］刘学春, 杨志炜, 王鹤翔, 等. 螺栓装配多高层钢结构梁柱连接抗震性能研究［J］． 建筑结构学报, 2017, 38(6): 34-42.
LIU Xuechun, YANG Zhiwei, WANG Hexiang, et al. Seismic performance of beam-column connection in bolted assembled multi-high-rise steel structure ［J］. Journal of Building Structures, 2017, 38(6): 34-42.
［25］LIU X C, CUI X X, YANG Z W, et al. Analysis of the seismic performance of site-bolted beam to column connections in modularized prefabricated steel structures ［J］. Advances in Materials Science and Engineering, 2017, 163: 1-18.
［26］LIU X C, YANG Z W, WANG H X, et al. Seismic performance of H-section beam to HSS column connection in prefabricated structures ［J］. Journal of Constructional Steel Research, 2017, 138: 1-16.
［27］LIU X C, CUI F Y, ZHAN X X, et al. Seismic performance of bolted connection of H-beam to HSS-column with web end-plate ［J］. Journal of Constructional Steel Research, 2019, 156: 167-181.
