巨型框架采用干摩擦板-弹簧系统隔震效果
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摘要
依据拉格朗日方程推导了巨型框架采用干摩擦板-弹簧隔震系统的动力反应分析计算公式,并根据龙格-库塔法利用MTALAB语言编制程序求解。结果表明,采用干摩擦板-弹簧系统能使动力反应层间位移减小。当层间刚度系数取160 000kN/m、滑动摩擦系数取0.01时,隔震效果可达60%~84%左右,减震效果达到最佳。
A theoretical analyzing approach about vibration mitigation system,dry friction plate-spring system,was presented.It starts from Lagrange Equation in analytical dynamics.The solution was presented with Longe-Kuta method and was programmed with MTALAB software.The results show that the dry friction plate-spring system can reduce the seismic dynamic response of inter-story drift.It is also shown that when the Stiffness coefficient between the layers is about 160000kN/m and the slipping friction coefficient is about 0.01,the seismic isolation effectiveness could be about 60% ~84% to achieve the best damping effect.
A theoretical analyzing approach about vibration mitigation system,dry friction plate-spring system,was presented.It starts from Lagrange Equation in analytical dynamics.The solution was presented with Longe-Kuta method and was programmed with MTALAB software.The results show that the dry friction plate-spring system can reduce the seismic dynamic response of inter-story drift.It is also shown that when the Stiffness coefficient between the layers is about 160000kN/m and the slipping friction coefficient is about 0.01,the seismic isolation effectiveness could be about 60% ~84% to achieve the best damping effect.
引文
[1]Guoxing Liu,Qingshan Yang.Survey and analysis on seismic damage of structures of Dujiangyan in the Wenchuan earthquake[A].Proceeding of International Conference on Earthquake Engineering-The First Anniversary of Wenchuan Earthquake[C],2009:298-302.
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[3]付李宁.框架结构的基础隔震研究[D].武汉理工大学,2008.
[4]杨树标,曾江,贾剑辉.并联复合隔震体系非线性性能的试验研究[J].工程抗震与加固改造,2011,33(3):38-41.
[5]闫桂云,巫文君.建筑结构地震反应的MR智能基础隔震控制[J].工程抗震与加固改造,2011,33(3):51-55.
[6]徐佳琦,王兴国.竖向振动对椭圆滑道辊轴摩擦摆隔震性能影响[J].工程抗震与加固改造,2011,33(3):56-63.
[7]Naeim F,Kelly J M.Design of Seismic Isolated Structures:From Theory to Practice[M].John Wiley and Sons,1999.
[8]Chang S P,Makris N,Whittaker A S,Thompson ACT.Experimental and analytical studies on the performance of hybrid isolation systems[J].Earthquake Engineering and Structure Dynamic,2002(31):421-443.
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[10]Yuan Jian,ROSCH K E Paul.Equation of motion for novel friction pendulum system with dual rollers[J].Transactions of Nanjing University of Aeronautics&Astronautics,2005,22(4):276-280.
[2]叶列平,曲哲,陆新征,冯鹏.提高建筑结构抗震倒塌能力的设计思想与方法[J].建筑结构学报,2008,29(4):42-50.
[3]付李宁.框架结构的基础隔震研究[D].武汉理工大学,2008.
[4]杨树标,曾江,贾剑辉.并联复合隔震体系非线性性能的试验研究[J].工程抗震与加固改造,2011,33(3):38-41.
[5]闫桂云,巫文君.建筑结构地震反应的MR智能基础隔震控制[J].工程抗震与加固改造,2011,33(3):51-55.
[6]徐佳琦,王兴国.竖向振动对椭圆滑道辊轴摩擦摆隔震性能影响[J].工程抗震与加固改造,2011,33(3):56-63.
[7]Naeim F,Kelly J M.Design of Seismic Isolated Structures:From Theory to Practice[M].John Wiley and Sons,1999.
[8]Chang S P,Makris N,Whittaker A S,Thompson ACT.Experimental and analytical studies on the performance of hybrid isolation systems[J].Earthquake Engineering and Structure Dynamic,2002(31):421-443.
[9]周锡元,闫维明,杨润林.建筑结构的震动、减振和振动控制[J].建筑结构学报,2002,23(2):2-11.
[10]Yuan Jian,ROSCH K E Paul.Equation of motion for novel friction pendulum system with dual rollers[J].Transactions of Nanjing University of Aeronautics&Astronautics,2005,22(4):276-280.
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