方钢管混凝土柱-钢梁外加强环节点滞回性能分析
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摘要
为了研究方钢管混凝土柱-钢梁外加强环节点的抗震性能,进行了四个方钢管混凝土柱-钢梁外加强环节点的低周反复荷载试验,以轴压比和梁柱线刚度比为参数,研究分析了该类节点的滞回曲线、延性、刚度退化、耗能能力及其破坏特征。结论表明:方钢管混凝土柱-钢梁外加强环节点滞回曲线饱满,耗能能力强,刚度退化缓慢,达到极限荷载后具有良好的延性和后期承载能力。经与钢筋混凝土框架、型钢混凝土框架及钢框架节点比较可知,方钢管混凝土柱-钢梁外加强环节点具有较好的受力性能和抗震能力,本文的研究成果可用于指导钢管混凝土结构的工程实践。
To understand the seismic behavior of steel beam to concrete-filled square steel tube column connections with outer stiffening ring,through the low cyclic load test of four steel beam to concrete-filled square steel tube column connections with outer stiffening ring,considering the effect on the axial compression ratio and beam-column linear stiffness ratio,the hysteretic curve,ductility,degradation of stiffness,energy dissipation capacity,failure mechanism and characteristics were researched.The results indicate that the steel beam to concrete-filled square steel tube column connections with outer stiffening ring has plum physteretic loops,stronger energy dissipation capacity,slow stiffness degradation,better ductility and steady late load-carrying capacity after the joints reach ultimate loads.Compared with reinforced concrete frame joints,steel reinforced concrete frame joints and steel frame joints,the steel beam to concretefilled square steel tube column connections with outer stiffening ring has superior mechanical behavior and seismic capacity, the research fruits can direct the engineering practice of concrete-filled steel tube structure.
To understand the seismic behavior of steel beam to concrete-filled square steel tube column connections with outer stiffening ring,through the low cyclic load test of four steel beam to concrete-filled square steel tube column connections with outer stiffening ring,considering the effect on the axial compression ratio and beam-column linear stiffness ratio,the hysteretic curve,ductility,degradation of stiffness,energy dissipation capacity,failure mechanism and characteristics were researched.The results indicate that the steel beam to concrete-filled square steel tube column connections with outer stiffening ring has plum physteretic loops,stronger energy dissipation capacity,slow stiffness degradation,better ductility and steady late load-carrying capacity after the joints reach ultimate loads.Compared with reinforced concrete frame joints,steel reinforced concrete frame joints and steel frame joints,the steel beam to concretefilled square steel tube column connections with outer stiffening ring has superior mechanical behavior and seismic capacity, the research fruits can direct the engineering practice of concrete-filled steel tube structure.
引文
[1]韩林海.钢管混凝土结构[M].北京:科学出版社,2000.
[2]韩林海,杨有福.现代钢管混凝土结构技术[M].北京:中国建筑工业出版社,2004.
[3]CECS 159:2004矩形钢管混凝土结构技术规程[S].北京:中国计划出版社,2004.
[4]JGJ101-96建筑抗震试验方法规程[S].北京:中国建筑工业出版社,1997.
[5]蒋永生,蓝宗建,冯纪寅.钢筋混凝土框架节点梁端抗震性能的试验研究[J].南京工学院学报,1980.
[6]石永久,李兆凡,陈宏.高层钢框架新型梁柱节点抗震性能试验研究[J].建筑结构学报,2002,23(3):1-7.
[7]唐九如.钢筋混凝土框架节点抗震[M].南京:东南大学出版社,1989.
[8]王晨飞.钢管混凝土柱-钢梁外加强环节点的受力性能研究[D].包头:内蒙古科技大学,2007.
[9]周起敬.钢与混凝土组合结构设计施工手册[M].北京:中国建筑工业出版社,1991.
[10]向黎明,吕西林,曹阳.新型钢管混凝土柱—梁节点抗震性能研究[J].结构工程师,2001,(3).
[11]王文达,韩林海,游经团.方钢管混凝土柱-钢梁外加强环节点滞回性能的试验研究[J].土木工程学报,2006,39(9).
[12]杜培源,黄炳生,黄顾忠.方钢管混凝土柱-钢梁外隔板式节点静力和滞回性能分析[J].钢结构,2007,22(8)
[13]周天华.方钢管混凝土柱-钢梁框架节点抗震性能及承载力研究[D].西安建筑科技大学,2004.
[14]高春彦.矩形钢管混凝土框架节点抗震性能试验研究[D].包头:内蒙古科技大学,2007.
[15]薛建阳,赵鸿铁,杨勇.型钢混凝土节点抗震性能及构造方法[J].世界地震工程,2002,18(2):61-64.
[16]崔鸿超,王桂云等.钢框架梁柱节点在反复循环荷载下的试验研究.建筑结构学报,1990,11(1):52-60.
[2]韩林海,杨有福.现代钢管混凝土结构技术[M].北京:中国建筑工业出版社,2004.
[3]CECS 159:2004矩形钢管混凝土结构技术规程[S].北京:中国计划出版社,2004.
[4]JGJ101-96建筑抗震试验方法规程[S].北京:中国建筑工业出版社,1997.
[5]蒋永生,蓝宗建,冯纪寅.钢筋混凝土框架节点梁端抗震性能的试验研究[J].南京工学院学报,1980.
[6]石永久,李兆凡,陈宏.高层钢框架新型梁柱节点抗震性能试验研究[J].建筑结构学报,2002,23(3):1-7.
[7]唐九如.钢筋混凝土框架节点抗震[M].南京:东南大学出版社,1989.
[8]王晨飞.钢管混凝土柱-钢梁外加强环节点的受力性能研究[D].包头:内蒙古科技大学,2007.
[9]周起敬.钢与混凝土组合结构设计施工手册[M].北京:中国建筑工业出版社,1991.
[10]向黎明,吕西林,曹阳.新型钢管混凝土柱—梁节点抗震性能研究[J].结构工程师,2001,(3).
[11]王文达,韩林海,游经团.方钢管混凝土柱-钢梁外加强环节点滞回性能的试验研究[J].土木工程学报,2006,39(9).
[12]杜培源,黄炳生,黄顾忠.方钢管混凝土柱-钢梁外隔板式节点静力和滞回性能分析[J].钢结构,2007,22(8)
[13]周天华.方钢管混凝土柱-钢梁框架节点抗震性能及承载力研究[D].西安建筑科技大学,2004.
[14]高春彦.矩形钢管混凝土框架节点抗震性能试验研究[D].包头:内蒙古科技大学,2007.
[15]薛建阳,赵鸿铁,杨勇.型钢混凝土节点抗震性能及构造方法[J].世界地震工程,2002,18(2):61-64.
[16]崔鸿超,王桂云等.钢框架梁柱节点在反复循环荷载下的试验研究.建筑结构学报,1990,11(1):52-60.
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