PFD-SMA支撑体系的抗震性能
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摘要
对传统的Pall摩擦阻尼支撑体系进行改进,提出一种PFD-SMA支撑体系,充分利用Pall摩擦阻尼器(PFD)和形状记忆合金(SMA)的优点,使该体系具有强耗能能力和自复位功能;考虑几何非线性采用ANSYS程序对SMA棒材和PFD-SMA体系进行分析。研究结果表明:SMA棒材具有较强的耗能能力,且可恢复应变大;在钢框架结构中采用PFD-SMA体系能有效降低结构的地震响应,提高结构的抗震性能,同时,该体系可通过形状记忆超弹性及形状记忆效应具有双重自复位功能,表明PFD-SMA体系具有良好的抗震性能。
The traditional Pall friction damping brace system was improved,and a PFD-SMA brace system was presented,which makes full use of Pall friction dampers(PFD) and shape memory alloy(SMA) so that the system has the energy dissipation ability and self-resetting function.The shape memory alloy bar and the PFD-SMA system were analyzed using ANSYS based on geometric nonlinearity.The results show that the capacity of the shape memory bar is strong,and its recovery deformation is much larger.The system can effectively reduce the seismic response of structure to improve the seismic performance of the high-rise steel frame,so the system has a dual self-resetting function based on the super elastic and shape memory effects of SMA,which indicates the PFD-SMA system has better seismic performance.
The traditional Pall friction damping brace system was improved,and a PFD-SMA brace system was presented,which makes full use of Pall friction dampers(PFD) and shape memory alloy(SMA) so that the system has the energy dissipation ability and self-resetting function.The shape memory alloy bar and the PFD-SMA system were analyzed using ANSYS based on geometric nonlinearity.The results show that the capacity of the shape memory bar is strong,and its recovery deformation is much larger.The system can effectively reduce the seismic response of structure to improve the seismic performance of the high-rise steel frame,so the system has a dual self-resetting function based on the super elastic and shape memory effects of SMA,which indicates the PFD-SMA system has better seismic performance.
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):21-26WU Bin,ZHANG Ji-gang,OU Jin-ping.The analysis ofhysteretic behavior of pall-typed frictional dampers consideringgeometry nonlinearity[J].Engineering Mechanics,2003,20(1):21-26.
[2]WU Bin,ZHANG Ji-gang,Williams M,et al.Hystereticbehavior of improved Pall-typed frictional dampers[J].Engineering Structures,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 ofPall-typed frictional dampers considering geometricalnonlinearity and corresponding test verification[J].EarthquakeEngineering and Engineering Vibration,2001,21(4):60-65.
[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 researchand numerical analysis of Pall-typed frictional dampers[J].Journal of Building Structures,2006,24(2):7-13.
[5]DesRoches R,Delemont M.Seismic retrofit of simply supportedbridges using shape memory alloys[J].Engineering Structure,2002,24:325-332.
[6]Dolce M,Cardone D.Mechanical behaviour of shape memoryalloys for seismic applications 1.Martensite and austenite NiTibars subjected to torsion[J].International Journal of MechanicalSciences,2001,43:2631-2656.
[7]Dolce M,Cardone D.Mechanical behaviour of shape memoryalloys for seismic applications 2.Austenite NiTi wires subjectedto tension[J].International Journal of Mechanical Sciences,2001,43:2657-2677.
[8]McCormick J,Asce S M,DesRoches R,et al.Seismicassessment of concentrically braced steel frames with shapememory alloy braces[J].Journal of Structural Engineering,2007,133(6):862-870.
[9]张纪刚,欧进萍,吴斌.记忆合金减震控制装置:中国,ZL200920268697.5[P].2010-04-29.ZHANG Ji-gang,OU Jin-ping,WU Bin.Energy dissipationsetup based shape memory alloy:China,ZL 200920268697.5[P].2010-04-29.
[10]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.WANG Xin-min.Numerical analysis of engineering structure inusing ANSYS software[M].Beijing:Press of People’sCommunications,2007:443-448.
[11]彭凌云,周锡元.拟线性摩擦阻尼器性能试验与有限元分析[J].建筑结构学报,2010,31(6):188-194.PENG Ling-yun,ZHOU Xi-yuan.Experiment and FEA onperformance of pseudo-linear friction damper[J].Journal ofBuilding Structures,2010,31(6):188-194.
[12]GB 50011—2001,建筑抗震设计规范(2008年修订版)[S].GB 50011—2001,Code for seismic design of buildings(revisedin 2008)[S].
[2]WU Bin,ZHANG Ji-gang,Williams M,et al.Hystereticbehavior of improved Pall-typed frictional dampers[J].Engineering Structures,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 ofPall-typed frictional dampers considering geometricalnonlinearity and corresponding test verification[J].EarthquakeEngineering and Engineering Vibration,2001,21(4):60-65.
[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 researchand numerical analysis of Pall-typed frictional dampers[J].Journal of Building Structures,2006,24(2):7-13.
[5]DesRoches R,Delemont M.Seismic retrofit of simply supportedbridges using shape memory alloys[J].Engineering Structure,2002,24:325-332.
[6]Dolce M,Cardone D.Mechanical behaviour of shape memoryalloys for seismic applications 1.Martensite and austenite NiTibars subjected to torsion[J].International Journal of MechanicalSciences,2001,43:2631-2656.
[7]Dolce M,Cardone D.Mechanical behaviour of shape memoryalloys for seismic applications 2.Austenite NiTi wires subjectedto tension[J].International Journal of Mechanical Sciences,2001,43:2657-2677.
[8]McCormick J,Asce S M,DesRoches R,et al.Seismicassessment of concentrically braced steel frames with shapememory alloy braces[J].Journal of Structural Engineering,2007,133(6):862-870.
[9]张纪刚,欧进萍,吴斌.记忆合金减震控制装置:中国,ZL200920268697.5[P].2010-04-29.ZHANG Ji-gang,OU Jin-ping,WU Bin.Energy dissipationsetup based shape memory alloy:China,ZL 200920268697.5[P].2010-04-29.
[10]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.WANG Xin-min.Numerical analysis of engineering structure inusing ANSYS software[M].Beijing:Press of People’sCommunications,2007:443-448.
[11]彭凌云,周锡元.拟线性摩擦阻尼器性能试验与有限元分析[J].建筑结构学报,2010,31(6):188-194.PENG Ling-yun,ZHOU Xi-yuan.Experiment and FEA onperformance of pseudo-linear friction damper[J].Journal ofBuilding Structures,2010,31(6):188-194.
[12]GB 50011—2001,建筑抗震设计规范(2008年修订版)[S].GB 50011—2001,Code for seismic design of buildings(revisedin 2008)[S].
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