板式橡胶支座摩擦滑移特性参数分析
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摘要
对板式橡胶支座摩擦滑移特性进行数值分析,并与试验结果进行滞回曲线和等效黏滞阻尼比方面的对比。结果表明:有限元模拟结果能与试验结果很好吻合,说明所建立的有限元模型中对单元的选择、接触的处理及模型简化等能有效用于板式橡胶支座的模拟,可较好预测板式橡胶支座的滑动耗能特性。基于此模型,进一步分析橡胶层厚度、支座宽度等参数对支座滑移特性的影响,为后续建立支座合理分析模型奠定基础。
The behavior of Laminated Rubber Bearings(LR B)with friction slipping is studied using finite element method, the computing results about hysteretic curve and the equivalent viscous damping ratio are compared with test one. The results show that the numerical model can simulate the behavior of experimental bearings, the selection of element, dealing with contact and model simplif ication can be beneficial to LRB simulation, and the results can reflect the behavior of LRB well. Further analysis about the influence of rubber layer thickness and bearing width on LRB with friction slipping, some useful conclusions can be references for further research.
The behavior of Laminated Rubber Bearings(LR B)with friction slipping is studied using finite element method, the computing results about hysteretic curve and the equivalent viscous damping ratio are compared with test one. The results show that the numerical model can simulate the behavior of experimental bearings, the selection of element, dealing with contact and model simplif ication can be beneficial to LRB simulation, and the results can reflect the behavior of LRB well. Further analysis about the influence of rubber layer thickness and bearing width on LRB with friction slipping, some useful conclusions can be references for further research.
引文
[1]庄卫林,陈乐生.汶川地震公路震害分析:桥梁与隧道[M].北京:人民交通出版社,2013(Zhuang Weilin,Chen Lesheng.Analysis of highways’damage in the Wenchuan Earthquake[M].China Communications Press,2013(in Chinese))
[2]李冲,王克海,李悦,等.板式橡胶支座摩擦滑移抗震性能试验研究[J].东南大学学报:自然科学版,2014,44(1):162-167(Li Chong,Wang Kehai,Li Yue,et al.Experimental study on seismic performance of laminated rubber bearings with friction slipping[J].Journal of Southeast University:Natural Science Edition,2014,44(1):162-167(in Chinese))
[3]Steelman J S,Fahnestock L A,Filipov E T,et al.Shear and Friction Response of Nonseismic Laminated Elastomeric Bridge Bearings Subject to Seismic Demands[J].Journal of Bridge Engineering,2012,18(7):612-623
[4]Buckle I,Nagarajaiah S,Ferrell K.Stability of elastomeric isolation bearings:Experimental study[J].Journal of Structural Engineering,2002,128(1):3-11
[5]Jain S K,Thakkar S K.Experimental investigations on laminated rubber bearings[J].Bulletin of Earthquake Engineering,2005,3(1):129-136
[6]Warn G P,Weisman J.Parametric finite element investigation of the critical load capacity of elastomeric strip bearings[J].Engineering Structures,2011,33(12):3509-3515
[7]Mishra H K,Igarashi A,Matsushima H.Finite element analysis and experimental verification of the scrap tire rubber pad isolator[J].Bulletin of Earthquake Engineering,2013,11(2):687-707
[8]王璐,欧瑾,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:自然科学版,2010,32(4):49-53(Wang Lu,Ou Jin,Wang Shuguang,et al.Nonlinear finite element analysis of elastic sliding bearing base d on ABAQUS[J].Journal of Nanjing University of Technology:Natural Science Edition,2010,32(4):49-53(in Chinese))
[9]李枝军,葛飞,徐秀丽,等.板式橡胶支座性能有限元模拟与试验研究[J].东南大学学报:自然科学版,2013,43(6):1299-1304(Li Zhijun,Ge Fei,Xu Xiuli,el at.Finite element simulation and experimental study of property for elastomeric pad bearing[J].Journal of Southeast University:Natural Science Edition,2013,43(6):1299-1304(in Chinese))
[10]Filipov E T,Fahnestock L A,Steelman J S,et al.Evaluation of quasi-isolated seismic bridge behavior using nonlinear bearing models[J].Engineering Structures,2013,49:168-181
[11]Dassault Co.Ltd.ABAQUS Theory Manual[M].Version6.9.1.France:Dassault Co.,Ltd.,2009
[2]李冲,王克海,李悦,等.板式橡胶支座摩擦滑移抗震性能试验研究[J].东南大学学报:自然科学版,2014,44(1):162-167(Li Chong,Wang Kehai,Li Yue,et al.Experimental study on seismic performance of laminated rubber bearings with friction slipping[J].Journal of Southeast University:Natural Science Edition,2014,44(1):162-167(in Chinese))
[3]Steelman J S,Fahnestock L A,Filipov E T,et al.Shear and Friction Response of Nonseismic Laminated Elastomeric Bridge Bearings Subject to Seismic Demands[J].Journal of Bridge Engineering,2012,18(7):612-623
[4]Buckle I,Nagarajaiah S,Ferrell K.Stability of elastomeric isolation bearings:Experimental study[J].Journal of Structural Engineering,2002,128(1):3-11
[5]Jain S K,Thakkar S K.Experimental investigations on laminated rubber bearings[J].Bulletin of Earthquake Engineering,2005,3(1):129-136
[6]Warn G P,Weisman J.Parametric finite element investigation of the critical load capacity of elastomeric strip bearings[J].Engineering Structures,2011,33(12):3509-3515
[7]Mishra H K,Igarashi A,Matsushima H.Finite element analysis and experimental verification of the scrap tire rubber pad isolator[J].Bulletin of Earthquake Engineering,2013,11(2):687-707
[8]王璐,欧瑾,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:自然科学版,2010,32(4):49-53(Wang Lu,Ou Jin,Wang Shuguang,et al.Nonlinear finite element analysis of elastic sliding bearing base d on ABAQUS[J].Journal of Nanjing University of Technology:Natural Science Edition,2010,32(4):49-53(in Chinese))
[9]李枝军,葛飞,徐秀丽,等.板式橡胶支座性能有限元模拟与试验研究[J].东南大学学报:自然科学版,2013,43(6):1299-1304(Li Zhijun,Ge Fei,Xu Xiuli,el at.Finite element simulation and experimental study of property for elastomeric pad bearing[J].Journal of Southeast University:Natural Science Edition,2013,43(6):1299-1304(in Chinese))
[10]Filipov E T,Fahnestock L A,Steelman J S,et al.Evaluation of quasi-isolated seismic bridge behavior using nonlinear bearing models[J].Engineering Structures,2013,49:168-181
[11]Dassault Co.Ltd.ABAQUS Theory Manual[M].Version6.9.1.France:Dassault Co.,Ltd.,2009
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