冷弯薄壁方钢管混凝土柱滞回性能的实验研究
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- 英文论文题名：Experimental studies on seismic behaviors of concrete-filled cold-formed thin-walled square steel tubular columns
- 论文作者：张万安 ; 王志滨
- 英文论文作者：Zhang Wanan ; Wang Zhibin ; College of Civil engineering ; Fuzhou University
- 年：2016
- 作者机构：福州大学土木工程学院;
- 论文关键词：冷弯薄壁钢管混凝土 ; 滞回性能 ; 轴压比 ; 延性 ; 耗能能力
- 英文论文关键词：concrete-filled cold-formed thin-walled steel tube ; seismic behavior ; axial load level ; ductility ; energy dissipation capacity
- 会议召开时间：2016-10-27
- 会议录名称：第九届全国防震减灾工程学术研讨会论文集
- 语种：中文
- 分类号：TU398.9
- 学会代码：OGTY
- 会议名称：第九届全国防震减灾工程学术研讨会
- 会议地点：中国安徽合肥
- 主办单位：中国土木工程学会、中国工程院土木、水利与建筑工程学部、中国土木工程学会防震减灾工程技术推广委员会、合肥工业大学、安徽省住房和城乡建设厅
- 学会名称：中国土木工程学会
- 页数：8
- 文件大小：998k
- 原文格式：O
- 会议级别：全国
摘要
对3根冷弯薄壁方钢管混凝土柱的滞回性能进行试验研究。研究轴压比对构件破坏模态、承载力、刚度退化、延性、耗能能力等抗震性能指标的影响规律。研究表明:所有试件的滞回曲线饱满。随着轴压比的增大,试件的承载力和刚度退化速度有所增大,而延性、耗能能力减小。轴压比小的试件在破坏表现为钢管屈服和局部屈曲;轴压比大的构件表现为钢管屈曲、混凝土压碎和钢管开裂。
The seismic behaviors of three concrete—filled cold—formed thin—walled square steel tubular columns are investigated experimentally.Influences of axial load level on the failure mode,strength,stiffness degradation,ductility and energy dissipation capacity are studied.Experimental results indicate that the hysteretic curves of all columns are good.The increasing of the axial load level leads to increasing load-carrying capacity and speed of the stiffness degradation,but decreasing ductility and the energy dissipation capacity.The specimen with a low axial load level failed by steel yielding and local buckling of the steel tubes,however the specimen with a high axial load level failed by local buckling of the steel tube,concrete crushing and steel fracture.
The seismic behaviors of three concrete—filled cold—formed thin—walled square steel tubular columns are investigated experimentally.Influences of axial load level on the failure mode,strength,stiffness degradation,ductility and energy dissipation capacity are studied.Experimental results indicate that the hysteretic curves of all columns are good.The increasing of the axial load level leads to increasing load-carrying capacity and speed of the stiffness degradation,but decreasing ductility and the energy dissipation capacity.The specimen with a low axial load level failed by steel yielding and local buckling of the steel tubes,however the specimen with a high axial load level failed by local buckling of the steel tube,concrete crushing and steel fracture.
引文
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[2]Mursi M.Strength of Concrete Filled Steel Box Columns Incorporating Interaction Buckling[J].Journal of Structural Engineering,2003:129(5):629-639.
[3]张耀春,王秋萍,毛小勇,等.薄壁钢管混凝土短柱轴压力学性能试验研究[J].建筑结构,2005,35(1):22-27.(Zhang Yaochun,Wang Qiuping,Mao Xiaoyong,et al.Research on Mechanics Behavior of Stubcolumn of Concrete-filled Thin-walled Steel Tube Under Axial Load[J].Building Structure,2005,35(1):22-27(in Chinese))
[4]Tao Z,Han L-H,Wang Z-B.Experimental behaviour of stiffened concrete-filled thin-walled hollow steel structural(HSS)stub columns[J].Journal of Constructional Steel Research,2005,61(7):962-983.
[5]陈勇,张耀春.设置斜肋方形薄壁钢管混凝土轴压短柱研究[J].东南大学学报(自然科学版),2006,36(1):107-112.(Chen Yong,Zhang Yaochun.Research on square stub columns with oblique ribs of concrete-filled thin-walled steel tube under axial compression loading[J].Journal of Southeast University(English Edition)2006,36(1):107-112(in Chinese))
[6]Tao Z,Wang Z-B,Yu Qing.Finite element modelling of concrete filled steel stub columns under axial compression[J].Journal of Construction Steel Research,2013:89(8):121-131.
[7]中华人民共和国国家标准.GB/T228-2002金属材料室温拉伸试验方法[S].北京:中国标准出版社,2003.(National Standard of the People's Republic of China.GB/T228-2002 Metallic materials-Tensile testing at ambient temperature[S].Beijing:Standards Press of China,2003.(in Chinese))
[8]韩林海.钢管混凝土结构理论与实践第2版[M].北京:科学出版社,2007:468.(Han Linhai.Concrete filled steel tubular columns-theory and practice[M].Beijing:Science Press,2007.(in Chinese))
[9]Wang Z-B,Tao Z,Li D-S,Han L-H.Cyclic behaviour of novel blind bolted joints with different stiffening elements[J].Thin-walled structure,2016,101:157-168.
[2]Mursi M.Strength of Concrete Filled Steel Box Columns Incorporating Interaction Buckling[J].Journal of Structural Engineering,2003:129(5):629-639.
[3]张耀春,王秋萍,毛小勇,等.薄壁钢管混凝土短柱轴压力学性能试验研究[J].建筑结构,2005,35(1):22-27.(Zhang Yaochun,Wang Qiuping,Mao Xiaoyong,et al.Research on Mechanics Behavior of Stubcolumn of Concrete-filled Thin-walled Steel Tube Under Axial Load[J].Building Structure,2005,35(1):22-27(in Chinese))
[4]Tao Z,Han L-H,Wang Z-B.Experimental behaviour of stiffened concrete-filled thin-walled hollow steel structural(HSS)stub columns[J].Journal of Constructional Steel Research,2005,61(7):962-983.
[5]陈勇,张耀春.设置斜肋方形薄壁钢管混凝土轴压短柱研究[J].东南大学学报(自然科学版),2006,36(1):107-112.(Chen Yong,Zhang Yaochun.Research on square stub columns with oblique ribs of concrete-filled thin-walled steel tube under axial compression loading[J].Journal of Southeast University(English Edition)2006,36(1):107-112(in Chinese))
[6]Tao Z,Wang Z-B,Yu Qing.Finite element modelling of concrete filled steel stub columns under axial compression[J].Journal of Construction Steel Research,2013:89(8):121-131.
[7]中华人民共和国国家标准.GB/T228-2002金属材料室温拉伸试验方法[S].北京:中国标准出版社,2003.(National Standard of the People's Republic of China.GB/T228-2002 Metallic materials-Tensile testing at ambient temperature[S].Beijing:Standards Press of China,2003.(in Chinese))
[8]韩林海.钢管混凝土结构理论与实践第2版[M].北京:科学出版社,2007:468.(Han Linhai.Concrete filled steel tubular columns-theory and practice[M].Beijing:Science Press,2007.(in Chinese))
[9]Wang Z-B,Tao Z,Li D-S,Han L-H.Cyclic behaviour of novel blind bolted joints with different stiffening elements[J].Thin-walled structure,2016,101:157-168.