摩擦钢板接触面对软钢耗能节点工作性能影响
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摘要
根据大连国际会议中心结构的设计特点,设计了2个带弧形接触板的软钢耗能节点试件,并进行了该类型试件在低周反复荷载下的抗震性能试验研究,试验模型为原型。在试验基础上,探讨了2个试件软钢耗能节点的承载力、刚度及其退化过程、延性、滞回特性和破坏特征。给出了软钢板耗能节点的承载力计算方法,计算结果与试验结果符合较好。研究表明,采用18mm厚软钢连接板节点试件具有较好的变形能力和耗能能力。
According to the structural design characteristics of Dalian International Conference Center,two mild steel energy dissipation joint specimens with arc-shaped contact plate were designed.The horizontal cyclic loading test was carried out for 1:1 scaled joint specimens with different working parameters in order to investigate the seismic performance.Based on the experiment,the load-carrying capacity,stiffness and its deteriorative behavior,hysteretic behavior,ductility,energy dissipation and failure mode of two specimens were discussed.Calculation method for load-carring capacity of the mild steel energy dissipation joint is given and the results agree well with the experimental results.The test results show that the joint specimen with mild steel contact plate of thickness 18mm has stronger deformability and higher energy dissipation capacity.
According to the structural design characteristics of Dalian International Conference Center,two mild steel energy dissipation joint specimens with arc-shaped contact plate were designed.The horizontal cyclic loading test was carried out for 1:1 scaled joint specimens with different working parameters in order to investigate the seismic performance.Based on the experiment,the load-carrying capacity,stiffness and its deteriorative behavior,hysteretic behavior,ductility,energy dissipation and failure mode of two specimens were discussed.Calculation method for load-carring capacity of the mild steel energy dissipation joint is given and the results agree well with the experimental results.The test results show that the joint specimen with mild steel contact plate of thickness 18mm has stronger deformability and higher energy dissipation capacity.
引文
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[3]Yamaguchi Tanemi,Takeuchi Toru and Nagao Toshimichi.Seismic control devices using low-yield-point steel[R].Nippon Steel Technical Re-port,1998,(77,78):65-72.
[4]Chan R W K,Albermani F.Experimental study of steel slit damper for passive energy dissipation[J].Engineering Structures,2007,30(4):1058–1066.
[5]吴从晓,周云,王廷彦.金属耗能器的类型、性能及工程应用[J].工程抗震与加固改造,2006,28(1):87-94.Wu Congxiao,Zhou Yun,Wang Tingyan.Types and performance of metallic dampers and their engineering applications[J].Earthquake ResistantEngineering and Retrofitting,2006,28(1):87-94.
[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]周云,刘季.圆环耗能器的试验研究[J].世界地震工程,1996,12(4),1-7.Zhou Yun,Liu Ji.Experimental study on the behavior of circular ring energy dissipater[J].World information on earthquake engineering,1996,12(4),1-7.
[8]周云,刘季.双环软钢耗能器的试验研究[J].地震工程与工程振动,1999(6):l17-123.Zhou Yun,Liu Ji.Experimental study on double circular ring mild steel energy dissipater[J].Earthquake engineering and engineering vibration,1999(6):l17-123.
[9]周云,刘季.加劲圆环耗能器性能的试验研究[J].地震工程与工程振动,1999(9):l15-120.Zhou Yun;Liu Ji.Experimental study of properties of added stiffness circular ring energy dissipater[J].Earthquake engineering and engineeringvibration,1999(9):l15-120.
[10]李玉顺,大井谦一,沈世钊.钢框架结构软钢阻尼器振动控制的试验及理论研究[J],建筑结构学报,2004,2:l-7.Li Yushun,KENICHI Ohi,Shen Shizhao.Experimental and theoretical study on vibration control of steel frame attached with hysteretic dampers[J].Journal of Building Structures,2004,2:l-7.
[11]吴斌,欧进萍.软钢屈服耗能器的疲劳性能和设计准则[J].世界地震工程.1996,11(4):8-13.Wu Bin,Ou Jinping.Fatigue properties and design criteria of mild steel yielding energy dissipators[J].World information onearthquake engineer-ing,1996,11(4):8-13.
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