PFD-SMA支撑体系滞回性能
|
摘要
对传统的Pall摩擦阻尼支撑体系进行了改进,充分利用Pall摩擦阻尼器和形状记忆合金的优点提出了一种Pall摩擦阻尼器和形状记忆合金(Pall-typed frictional damper-shape memory alloy,PFD-SMA)支撑体系.考虑几何非线性,采用ANSYS程序,根据摩擦力和SMA的刚度、支撑长度、最大恢复应变及弹性模量等,分析了PFD-SMA支撑体系的滞回性能.分析结果表明该体系具有较好的耗能能力,即使在抱死的情况下SMA支撑本身也会耗能;摩擦力与SMA刚度、长度以及弹性模量对其滞回性能都有影响.同时,该体系可因为SMA的超弹性、形状记忆效应而具有双重自复位功能.
A traditional Pall friction damping brace system is improved by a Pall-typed frictional damper-shape memory alloy(PFD-SMA) brace system,which makes full use of PFD and the advantages of SMA.The system has the energy dissipation ability and self-resetting function.The influences of SMA's stiffness,slip force of the Pall-typed damper,maximum recovery strain,elasticity modulus,and length of SMA brace are analyzed.Results show that the PFD-SMA frictional brace system has the same energy dissipation with an origin Pall brace system,even in the case of hugging SMA brace can consume energy by itself.The system has a dual self-resetting function by SMA's super-elastic performance and shape memory effect.
A traditional Pall friction damping brace system is improved by a Pall-typed frictional damper-shape memory alloy(PFD-SMA) brace system,which makes full use of PFD and the advantages of SMA.The system has the energy dissipation ability and self-resetting function.The influences of SMA's stiffness,slip force of the Pall-typed damper,maximum recovery strain,elasticity modulus,and length of SMA brace are analyzed.Results show that the PFD-SMA frictional brace system has the same energy dissipation with an origin Pall brace system,even in the case of hugging SMA brace can consume energy by itself.The system has a dual self-resetting function by SMA's super-elastic performance and shape memory effect.
引文
[1]吴斌,张纪刚,欧进萍.考虑几何非线性的Pall型摩擦阻尼器滞回特性分析[J].工程力学,2003,20(1):21-26.WU Bin,ZHANG Ji-gang,OU Jin-ping.The analysis of hysteretic behavior of Pall-typed frictional dampers consideringgeometry nonlinearity[J].Engineering Mechanics,2003,20(1):21-26.(in Chinese)
[2]WU B,ZHANG J,WILLIAMS M,et al.Hysteretic behaviour of improved Pall-typed frictional dampers[J].EngineeringStructures,2005,27(8):1258-1267.
[3]吴斌,张纪刚.基于几何非线性的Pall型摩擦阻尼器滞回特性分析与试验验证[J].地震工程与工程震动,2001,21(4):60-65.WU Bin,ZHANG Ji-gang.Analysis of hysteretic behavior of Pall-typed frictional dampers considering geometrical nonlinearityand corresponding test verification[J].Earthquake Engineering and Engineering Vibration,2001,21(4):60-65.(in Chinese)
[4]吴斌,张纪刚,欧进萍.Pall型摩擦阻尼器的试验研究与数值分析[J].建筑结构学报,2003,24(2):7-13.WU Bin,ZHANG Ji-gang,OU Jin-ping.Experimental research and numerical analysis of Pall-typed frictional dampers[J].Journal of Building Structures,2006,24(2):7-13.(in Chinese)
[5]MAURO D,DONATELLO C.Mechanical behavior of shape memory alloys for seismic applications1.Martensite and austeniteNiTi bars subjected to torsion[J].International Journal of Mechanical Sciences,2001,43:2631-2656.
[6]MAURO D,DONATELLO C.Mechanical behaviour of shape memory alloys for seismic applications 2.Austenite NiTi wiressubjected to tension[J].International Journal of Mechanical Sciences,2001,43:2657-2677.
[7]JASON M C,REGINALD D R,et al.Seismic assessment of concentrically braced steel frames with shape memory alloy braces[J].Journal of Structural Engineering,2007,133(6):862-870.
[8]王新敏.ANSYS工程结构数值分析[M].北京:人民交通出版社,2007:443-448.
[9]吴斌,张纪刚,欧进萍.Pall型摩擦阻尼支撑内力计算方法[J].世界地震工程,2004,20(2):6-11.WU Bin,ZHANG Ji-gang,OU Jin-ping.Computation method of Pall-typed frictional damper brace force[J].WorldEarthquake Engineering,2004,20(2):6-11.(in Chinese)
[2]WU B,ZHANG J,WILLIAMS M,et al.Hysteretic behaviour of improved Pall-typed frictional dampers[J].EngineeringStructures,2005,27(8):1258-1267.
[3]吴斌,张纪刚.基于几何非线性的Pall型摩擦阻尼器滞回特性分析与试验验证[J].地震工程与工程震动,2001,21(4):60-65.WU Bin,ZHANG Ji-gang.Analysis of hysteretic behavior of Pall-typed frictional dampers considering geometrical nonlinearityand corresponding test verification[J].Earthquake Engineering and Engineering Vibration,2001,21(4):60-65.(in Chinese)
[4]吴斌,张纪刚,欧进萍.Pall型摩擦阻尼器的试验研究与数值分析[J].建筑结构学报,2003,24(2):7-13.WU Bin,ZHANG Ji-gang,OU Jin-ping.Experimental research and numerical analysis of Pall-typed frictional dampers[J].Journal of Building Structures,2006,24(2):7-13.(in Chinese)
[5]MAURO D,DONATELLO C.Mechanical behavior of shape memory alloys for seismic applications1.Martensite and austeniteNiTi bars subjected to torsion[J].International Journal of Mechanical Sciences,2001,43:2631-2656.
[6]MAURO D,DONATELLO C.Mechanical behaviour of shape memory alloys for seismic applications 2.Austenite NiTi wiressubjected to tension[J].International Journal of Mechanical Sciences,2001,43:2657-2677.
[7]JASON M C,REGINALD D R,et al.Seismic assessment of concentrically braced steel frames with shape memory alloy braces[J].Journal of Structural Engineering,2007,133(6):862-870.
[8]王新敏.ANSYS工程结构数值分析[M].北京:人民交通出版社,2007:443-448.
[9]吴斌,张纪刚,欧进萍.Pall型摩擦阻尼支撑内力计算方法[J].世界地震工程,2004,20(2):6-11.WU Bin,ZHANG Ji-gang,OU Jin-ping.Computation method of Pall-typed frictional damper brace force[J].WorldEarthquake Engineering,2004,20(2):6-11.(in Chinese)
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心