方套方中空夹层钢管混凝土柱单边螺栓连接节点拟动力试验分析
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摘要
为揭示中空夹层钢管混凝土柱单边螺栓连接在地震作用下的动力特性和破坏模式,文章选取典型的中柱节点作为试验模型,进行方套方中空夹层钢管混凝土柱单边螺栓端板连接节点拟动力试验。研究柱截面空心率、端板形式以及采用可拆卸组合楼板对节点动力性能的影响。获得节点在各工况下的动力特性和破坏模式,分析构件最大位移时程曲线、最大加速度时程曲线、柱顶水平荷载-水平位移滞回曲线,获得阻尼比、刚度退化和累积滞回耗能等抗震性能指标的变化规律。试验结果表明,方套方中空夹层钢管混凝土柱单边螺栓端板连接节点具有优越的抗震性能和良好的延性,可以在高烈度地区的多高层装配式钢结构建筑中应用和推广。
In order to investigate the dynamic response and failure mechanism of blind bolted connections in concrete filled double skin steel tubular(CFDST) columns, cruciform specimens representing the internal substructures of a multi-story frame were tested under seismic loads. Through the experimental results, the influence of end plate type, hollow ratio of column and demountable composite floor was analyzed. The dynamic response and failure modes of the test specimens were observed under different earthquake waves. The seismic performances, such as hysteretic behavior, dynamic magnification factor, damping ratio, stiffness degradation and energy dissipation capacity, were explored. The test results show that the blind bolted connections in the CFDST columns have good seismic performance and ductility, so they can be applied in high-rise assembled steel structures located in high-intensity earthquake areas.
In order to investigate the dynamic response and failure mechanism of blind bolted connections in concrete filled double skin steel tubular(CFDST) columns, cruciform specimens representing the internal substructures of a multi-story frame were tested under seismic loads. Through the experimental results, the influence of end plate type, hollow ratio of column and demountable composite floor was analyzed. The dynamic response and failure modes of the test specimens were observed under different earthquake waves. The seismic performances, such as hysteretic behavior, dynamic magnification factor, damping ratio, stiffness degradation and energy dissipation capacity, were explored. The test results show that the blind bolted connections in the CFDST columns have good seismic performance and ductility, so they can be applied in high-rise assembled steel structures located in high-intensity earthquake areas.
引文
[1]陶忠,韩林海.中空夹层钢管混凝土的研究进展[J].哈尔滨工业大学学报,2003,35(增1):144-146,170(Tao Zhong,Han Linhai.Development in the research of concrete filled double-skin steel tubes[J].Journal of Harbin Institute of Technology,2003,35(S1):144-146,170(in Chinese))
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[6]黄宏,朱琪,陈梦成,等.方中空夹层钢管混凝土压弯扭构件试验研究[J].土木工程学报,2016,49(3):91-97(Huang Hong,Zhu Qi,Chen Mengcheng,et al.Experimental study on concrete-filled double-skin square steel tubes under compression bending torsion loading conditions[J].China Civil Engineering Journal,2016,49(3):91-97(in Chinese))
[7]Sulthana U M,Jayachandran S A.Axial compression behaviour of long concrete filled double skinned steel tubular columns[J].Structures,2017,9:157-164
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[9]闫煦.圆套圆中空夹层钢管混凝土柱-钢梁节点滞回性能试验研究[D].沈阳:沈阳建筑大学,2011(Yan Xu.Experimental study on hysteretic behavior of steel beam to concrete filled double skin(CHS inner and CHSouter)steel tubular columns[D].Shenyang:Shenyang Jianzhu University,2011(in Chinese))
[10]王静峰,韩林海,郭水平.半刚性钢管混凝土框架端板节点试验研究及数值模拟[J]．建筑结构学报,2009,31(增2):219-224(Wang Jingfeng,Han Linhai,Guo Shuiping.Experimental study and numeral analysis of endplate joints for semi-rigid CFST frames[J].Journal of Building Structures,2009,31(S2):219-224(in Chinese))
[11]王静峰,张猛,张娜.圆中空夹层钢管混凝土柱单边螺栓端板连接节点试验及数值模拟[J].建筑钢结构进展,2018,20(2):36-43(Wang Jingfeng,Zhang Meng,Zhang Na.Experimental and analytical study of the blind bolted end plate steel beam to circular CFDSTcolumn joints[J].Progress in Steel Building Structures,2018,20(2):36-43(in Chinese))
[12]路佳.中空夹层钢管混凝土柱单边螺栓节点拟动力试验与数值分析[D].合肥:合肥工业大学,2018(Lu Jia.Pseudo-dynamic experiments and numerical analysis of CFDST composite joints with blind bolts[D].Hefei:Hefei University of Technology,2018(in Chinese))
[13]JGJ 101-2015建筑抗震试验规程[S].北京:中国建筑工业出版社,2015(JGJ 101-2015 Specification for seismic test of buildings[S].Beijing:China Architecture&Building Press,2015(in Chinese))
[2]Zhao X L,Grzebieta R.Strength and ductility of concrete filled double skin(SHS inner and SHS outer)tubes[J].Thin-Walled Structures,2002,40:199-213
[3]陶忠,韩林海,黄宏.方中空夹层钢管混凝土偏心受压柱力学性能的研究[J].土木工程学报,2003,36(2):33-40,51(Tao Zhong,Han Linhai,Huang Hong.Concrete-filled double skin steel tubular column with square section under eccentric loads[J].China Civil Engineering Journal,2003,36(2):33-40,51(in Chinese))
[4]陶忠,韩林海,黄宏.圆中空夹层钢管混凝土柱力学性能研究[J].土木工程学报,2004,37(10):41-51(Tao Zhong,Han Linhai,Huang Hong.Mechanical behaviour of concrete-filled double skin steel tubular columns with circular cular sections[J].China Civil Engineering Journal,2004,37(10):41-51(in Chinese))
[5]谢力,林博洋,袁方,等,方中空夹层钢管混凝土柱压-弯-剪受力性能试验研究[J].建筑结构学报,2015,36(增1):230-234(Xie Li,Lin Boyang,Yuan Fang,et al.Experimental study on mechanical performance of square concrete filled double-skin steel tubular columns under compression-bending-shear loading conditions[J].Journal of Building Structures,2015,36(S1):230-234(in Chinese))
[6]黄宏,朱琪,陈梦成,等.方中空夹层钢管混凝土压弯扭构件试验研究[J].土木工程学报,2016,49(3):91-97(Huang Hong,Zhu Qi,Chen Mengcheng,et al.Experimental study on concrete-filled double-skin square steel tubes under compression bending torsion loading conditions[J].China Civil Engineering Journal,2016,49(3):91-97(in Chinese))
[7]Sulthana U M,Jayachandran S A.Axial compression behaviour of long concrete filled double skinned steel tubular columns[J].Structures,2017,9:157-164
[8]周绪红,王宇航,陆国兵,等.往复纯扭作用下中空夹层钢管混凝土柱受力性能研究[J].建筑结构学报,2017,38(增1):266-271(Zhou Xuhong,Wang Yuhang,Lu Guobing,et al.Mechanical behavior of concrete filled double skin steel tubular columns under cyclic pure torsion[J].Journal of Building Structures,2017,38(S1):266-271(in Chinese))
[9]闫煦.圆套圆中空夹层钢管混凝土柱-钢梁节点滞回性能试验研究[D].沈阳:沈阳建筑大学,2011(Yan Xu.Experimental study on hysteretic behavior of steel beam to concrete filled double skin(CHS inner and CHSouter)steel tubular columns[D].Shenyang:Shenyang Jianzhu University,2011(in Chinese))
[10]王静峰,韩林海,郭水平.半刚性钢管混凝土框架端板节点试验研究及数值模拟[J]．建筑结构学报,2009,31(增2):219-224(Wang Jingfeng,Han Linhai,Guo Shuiping.Experimental study and numeral analysis of endplate joints for semi-rigid CFST frames[J].Journal of Building Structures,2009,31(S2):219-224(in Chinese))
[11]王静峰,张猛,张娜.圆中空夹层钢管混凝土柱单边螺栓端板连接节点试验及数值模拟[J].建筑钢结构进展,2018,20(2):36-43(Wang Jingfeng,Zhang Meng,Zhang Na.Experimental and analytical study of the blind bolted end plate steel beam to circular CFDSTcolumn joints[J].Progress in Steel Building Structures,2018,20(2):36-43(in Chinese))
[12]路佳.中空夹层钢管混凝土柱单边螺栓节点拟动力试验与数值分析[D].合肥:合肥工业大学,2018(Lu Jia.Pseudo-dynamic experiments and numerical analysis of CFDST composite joints with blind bolts[D].Hefei:Hefei University of Technology,2018(in Chinese))
[13]JGJ 101-2015建筑抗震试验规程[S].北京:中国建筑工业出版社,2015(JGJ 101-2015 Specification for seismic test of buildings[S].Beijing:China Architecture&Building Press,2015(in Chinese))