锥形非固结减震支座力学性能及计算模型研究
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摘要
对一种新型锥形非固结支座进行静力力学性能试验,基于试验分析了锥形非固结支座在不同参数影响下水平力学性能的变化关系,得出面压和材料厚度对支座的耗能能力和水平等效刚度有较大影响的结论。同时,用ABAQUS对锥形非固结支座的滞回曲线进行数值模拟,结果与试验曲线能较好地吻合。最后,提出了适合锥形非固结支座滞回曲线的计算模型。
This paper introduces a new unbonded conical bearing.Horizontal shear property tests under different parameters(including displacement,pressure,frequency,slope angle) are accomplished.Based on the test analysis,it is found that the pressure and thickness of rubber are two key factors to the property of bearing.Meanwhile,the hysteretic property is studied with FEM program ABAQUS.The result of numerical simulation coincides with the tests.Finally,a hysteresis loop model is proposed.
This paper introduces a new unbonded conical bearing.Horizontal shear property tests under different parameters(including displacement,pressure,frequency,slope angle) are accomplished.Based on the test analysis,it is found that the pressure and thickness of rubber are two key factors to the property of bearing.Meanwhile,the hysteretic property is studied with FEM program ABAQUS.The result of numerical simulation coincides with the tests.Finally,a hysteresis loop model is proposed.
引文
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[7]王璐,欧谨,王曙光,等.ABAQUS软件在弹性滑移支座非线性有限元分析中的应用[J].南京工业大学学报,2010,32(4):49-53.Wang L,Ou J,Wang S G,et al.Nonliner FiniteElement Analysis of Elastic Sliding Bearing Based onABAQUS[J].Journal of Nanjing University ofTechnology,2010,32(4):49-53.(in Chinese)
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[2]杜炎,钟铁毅,李宇.基础隔震钢桁架结构的地震响应分析[J].结构工程师,2008,24(4):76-84.Du Y,Zhong TY,Li Y.Seismic Response Analysis forSteel Truss Structures with Seismic IsolationFoundations[J].Structural Engineers,2008,24(4):76-84.(in Chinese)
[3]刘文光,何文福,霍达,等.大高宽比隔震结构双向输入振动台试验及数值分析[J].北京工业大学学报,2007,33(6):597-602.Liu W G,He W F,Huo D,et al.Shaking Table Testand Numerical Analysis for Large Aspect Ratio IsolatedStructure under Bi-directional Earthquake Input[J].Journal of Beijing University of Technology,2007,33(6):579-602.(in Chinese)
[4]朱玉华,庄文娟,黄海荣.铅芯橡胶隔震支座水平刚度影响因素数值分析[J].结构工程师,2009,25(6):66-71.Zhu Y H,Zhuang W J,Huang H R.SimulationAnalysis on Effects of Horizontal Stiffness in Lead-Rubber Bearings[J].Structural Engineers,2009,25(6):66-71.(in Chinese)
[5]杨彦飞,何文福,任冰燕.连续桥梁三维隔震体系地震反应分析[J].结构工程师,2009,25(3):90-96.Yang Y F,He W F,Ren B Y.Earthquake ResponseAnalysis of Three-Dimensional Isolated Systems forContinuous Bearings[J].Structual Engineers,2009,25(3):90-96.(in Chinese)
[6]孙凤利.锥形非固结支座的基本力学性能试验研究[D].广州:广州大学,2007.Sun F L.Basic mechanical performance test researchon conical unconsolidated bearing[D].Guangzhou:Guangzhou University,2007.(in Chinese)
[7]王璐,欧谨,王曙光,等.ABAQUS软件在弹性滑移支座非线性有限元分析中的应用[J].南京工业大学学报,2010,32(4):49-53.Wang L,Ou J,Wang S G,et al.Nonliner FiniteElement Analysis of Elastic Sliding Bearing Based onABAQUS[J].Journal of Nanjing University ofTechnology,2010,32(4):49-53.(in Chinese)
[8]周云.金属耗能减震结构设计[M].武汉:武汉理工大学出版社,2006.Zhou Y.Design of Mental Energy Dissipation[M].Wuhan:Wuhan University Press,2006.(in Chinese)
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