The application of cold-formed steel in prefabricated structures has inherent advantages. In order to expand the range of use of cold-formed thick-walled steel structures and avoid its shortcomings, this paper designed six new layered assembled “cross-shaped” beam-column joints and conducted cyclic loading tests to investigate the failure mode, initial stiffness, skeleton curve, equivalent viscous damping coefficient, energy dissipation coefficient, secant stiffness, hysteresis curve and strain distribution in key parts of the beam-column joints. The main conclusions were drawn as follows： Through the sliding of bolts and node plates, semi-rigid nodes have a certain energy dissipation capacity. Adding high-strength bolts can improve the bearing capacity initial stiffness and energy dissipation capacity of beam column joints as well as avoid bearing pressure on the bolt hole between the beam end and the connecting plate. Adding replaceable node flange plates has no significant impact on the failure mode of beam column joints, but significantly improves their bearing capacity, energy dissipation capacity, and initial stiffness.
Key words
cold formed thick-walled steel /
beam-column nodes /
semi-rigid /
initial stiffness /
energy consumption capacity
{{custom_keyword}} /
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
References
[1] 何保康,周天华.美国冷弯型钢结构的应用与研究情况[J].建筑结构,2001,31(8):58-59,68.
HE Baokang,ZHOU Tianhua.Application and research of cold formed steel structures in the united states[J].Building Structure,2001,31(8):58-59,68.(in Chinese)
[2] 崔银会,奚铁.冷弯型钢在我国建筑业应用前景分析[J].钢结构,2004(2):36-37.
CUI Yinhui,XI Tie.Analysis of the application prospects of cold formed steel in china's construction industry[J].Steel Structures,2004(2):36-37.(in Chinese)
[3] 叶掀亮. 冷弯型钢的产品系列及在建筑工程上的应用[J].工业建筑,1994(10):23-25.
YE Qiliang.The product series of cold formed steel and its application in construction engineering[J].Industrial Architecture,1994(10):23-25.(in Chinese)
[4] STANDARD A.North American standard for cold-formed steel framing-product data[J].American Iron and Steel Institute,2007.
[5] American Iron and Steel Institute.Specification for the Design of Cold-formed Steel Structural Members[S].1999.
[6] Standards Australia.Cold-Formed Steel Structures:AS/NZS 4600:2005[S].2005.
[7] 中华人民共和国建设部,中华人民共和国国家质量监督检验检疫总局.冷弯薄壁型钢结构技术规范:GB 50018—2002[S].北京:中国计划出版社,2002.
Ministry of construction of the People's Republic of China,General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China.Technical code of cold-formed thin-wall steel structures:GB 50018—2002[S].Beijing:China Planning Press,2002.(in Chinese)
[8] 温东辉,沈祖炎,李元齐.冷弯厚壁型钢冷弯效应及残余应力研究进展[J].结构工程师,2010,26(1):156-163.
WEN Donghui,SHEN Zuyan,LI Yuanqi.Research advances on effect of cold-forming and residual stresses in cold-formed thick-walled steel[J].Structural Engineers,2010,26(1):156-163.(in Chinese)
[9] 付小超,温东辉,张文莹.开口冷弯厚壁型钢组合截面轴压构件抗震性能研究[J].西安建筑科技大学学报(自然科学版),2023,55(6):810-818.
FU Xiaochao,WEN Donghui,ZHANG Wenying.Research on the seismic behaviors of opening cold-formed thick-walled steel under the axial cyclic loading[J].Journal of Hebei University of Engineering (Natural Science Edition),2023,55(6):810-818.(in Chinese)
[10] 李功文,李元齐.冷弯中厚壁轴压方矩形钢管柱抗震可靠度分析[J].同济大学学报(自然科学版),2018,46(8):1003-1010.
LI Gongwen,LI Yuanqi.Seismic reliability analysis of axially compressed cold-formed medium thick-walled square and rectangular steel tube columns[J].Journal of Tongji University(Natural Science),2018,46(8):1003-1010.(in Chinese)
[11] 陈绍蕃. 钢结构设计原理[M].北京:科学出版社,2005.
CHEN Shaofan.Principles of steel structure design[M].Beijing:Science Press,2005.(in Chinese)
[12] LIU Z,LIU H,CHEN Z,et al.Structural behavior of cold-formed thick-walled rectangular steel columns[J].Journal of Constructional Steel Research,2018,147:277-292.
[13] EN 1993-1-8 Eurocode 3:Design of steel structure-Part 1-8:Design of joints[S].Brussels:European Committee for Standardization,2003.
[14] ANSI/AISC360-05 Specification for structural steel buildings[S].Chicago:American Institute of Steel Construction,2005.
[15] 李国强,石文龙,王静峰.半刚性连接钢框架结构设计[M].北京:中国建筑工业出版社,2009.
LI Guoqiang,SHI Wenlong,WANG Jingfeng.Design of semi-rigid connected steel frame structures[M].Beijing:China Construction Industry Press,2009.(in Chinese)
[16] LI Y Q,WU F W,TAN M Q.Static performance of non-through one-side bolted end-plate joint for floor-by-floor assembled steel structures[C]. Structures,2023,48:288-303.
[17] 国家市场监督管理总局,国家标准化管理委员会.金属材料拉伸试验第1部分:室温试验方法:GB/T 228.1—2021[S].北京:中国标准出版社,2021.
State Administration for Market Regulation,Standardization Administration of China.Metallic materials-Tensile testing-Part 1:Room temperature test method:GB/T 228.1—2021[S].Beijing:China Standards Publishing House,2021.(in Chinese)
[18] AISC,Seismic provisions for structural steel buildings,American Institute of Steel Construction,Chicago,IL,USA,2005.
{{custom_fnGroup.title_en}}
Footnotes
{{custom_fn.content}}
PDF(3152 KB)
