SMA自复位隔震结构地震响应分析
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摘要
由于应力诱发马氏体相变使得基于SMA材料的耗能阻尼器具有自复位功能,利用相变伪弹性通过对一种基于SMA材料的自复位耗能阻尼器与橡胶垫联合使用,对隔震结构进行了弹塑性分析。该分析依据SMA材料的热力学本构关系,采用热力学非线性方程的计算模型,并针对剪切模型编制了弹塑性时程分析程序。研究结果表明,利用SMA相变伪弹性特性制作的具有自复位功能的耗能阻尼器联合隔震橡胶垫对结构进行控制,能有效的降低结构地震响应。
For the martensitic transformation induced by stress,the energy consuming damper on the basis of SMA material would have the self-resetting function.Through combining the self-resetting energy consuming damper with the rubber blanket by using the pseudo-elasticity property of shape memory alloys,the elastic-plastic analysis is made for isolation structure.The analysis program of elastic-plastic time histrory is compiled for the shear model according to the constitutive relation of the thermodynamics and the computation model of nonlinear equation of the thermodynamics.The results clearly indicate that the seismic response could be effectively reduced through combining the self-resetting energy consuming damper with the rubber blanket by using the pseudo-elasticity property to control the structure.
For the martensitic transformation induced by stress,the energy consuming damper on the basis of SMA material would have the self-resetting function.Through combining the self-resetting energy consuming damper with the rubber blanket by using the pseudo-elasticity property of shape memory alloys,the elastic-plastic analysis is made for isolation structure.The analysis program of elastic-plastic time histrory is compiled for the shear model according to the constitutive relation of the thermodynamics and the computation model of nonlinear equation of the thermodynamics.The results clearly indicate that the seismic response could be effectively reduced through combining the self-resetting energy consuming damper with the rubber blanket by using the pseudo-elasticity property to control the structure.
引文
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[5]张纪刚,吴斌,欧进萍.海洋平台隔振结构限位器设计[J].哈尔滨工业大学学报,2009,41(10):174-176.
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[2]江世哲,王社良,李启明.SMA被动隔震装置及其阻尼性能研究[J].西安建筑科技大学学报,2003,35(4):317-320.
[3]周福霖.工程结构减振控制[M].北京:地震出版社,1997.
[4]张纪刚,吴斌,欧进萍.海洋平台冰振控制试验研究[J].东南大学学报,2005,35(S1):31-34.
[5]张纪刚,吴斌,欧进萍.海洋平台隔振结构限位器设计[J].哈尔滨工业大学学报,2009,41(10):174-176.
[6]Mauro Dolce,Donatello Cardone and Marnetto.Implementation andtesting of passive control device based on shape memory alloys[J].Earthquake Engineering and Structural Dynamics,2000,29(1):945-968.
[7]日本免震构造协会.图解隔震结构入门[M].叶列平译.北京:科学出版社,1998.
[8]邓雪松.隔震结构的设计与分析方法[J].世界地震工程,2000,16(4):118-123.
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