串联隔震体系静力性能有限元分析
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摘要
采用ANSYS对叠层橡胶支座及与悬臂柱构成的串联隔震体系进行模拟分析,介绍了建立模型的过程,给出了参数设置。对叠层橡胶支座基本力学性能模拟,得到在受压时和受压剪时橡胶与钢板的等效应力分布;对悬臂柱不同截面尺寸两种串联体系进行压剪模拟,得到荷载与位移曲线。通过对比分析叠层橡胶支座基本力学性能结果,得到橡胶支座压缩与剪切最大应力点与破坏机理;通过对串联体系的模拟分析,得出了悬臂柱刚度不同时串联体系水平恢复力的变化情况和造成这种变化的原因。
Laminated rubber isolator and series system is analyzed by finite element analysis software ANSYS in this paper.The process of model and parameters setting are introduced.Through the laminated rubber bearings basic mechanics performance simulation,the equivalent stress distribution of rubber and steel plate is derived;Through the cantilever column different sectional dimensions two series system pressure cutting simulation,the load and displacement curve is derived.It is obtained the maximum shear point and failure mechanism of laminated rubber bearings by the basic mechanics performance results.The series system simulation analysis shows that when columns cantilever stiffness are different,the restoring force of series system is changed,and the reason of the change is derived.
Laminated rubber isolator and series system is analyzed by finite element analysis software ANSYS in this paper.The process of model and parameters setting are introduced.Through the laminated rubber bearings basic mechanics performance simulation,the equivalent stress distribution of rubber and steel plate is derived;Through the cantilever column different sectional dimensions two series system pressure cutting simulation,the load and displacement curve is derived.It is obtained the maximum shear point and failure mechanism of laminated rubber bearings by the basic mechanics performance results.The series system simulation analysis shows that when columns cantilever stiffness are different,the restoring force of series system is changed,and the reason of the change is derived.
引文
[1]党育,杜永峰,李慧编.基础隔震结构设计及施工指南[M]北京:中国水利水电出版社和知识产权出版社,2007Dang Yu,Du Yong-feng and Li Hui.The Design and Construction of Base-isolated Structures Guide[M].Beijing:China Water Conservancy and Hydropower Publishing House and the Intellectual Property Press,2007(in Chinese)
[2]李慧,姚云龙,杜永峰,党育,韩建平.叠层橡胶支座与柱串联体系动力失稳特性探讨[J].世界地震工程,2005,21(1):18～23Li Hui,Yao Yun-long,Du Yong-feng,Dang Yu,Han Jian-ping.Laminated rubber bearing tandem column system with the characteristics of dynamic instability[J].World Earthquake Engineering,2005,21(1):18～23(in Chinese)
[3]周锡元,韩淼,曾德民,马东辉.橡胶支座与R/C柱串联隔震系统水平刚度系数[J].振动工程学报,1999,12(2):157～165Zhou Xi-yuan,Han Miao,Zeng De-min,Ma Dong-hui.Rubber bearing with the R/C column in series the level of isolation system stiffness coefficient[J].Vibration Engineering,1999,12(2):157～165(in Chinese)
[4]日本建筑学会著,刘文光译.隔震结构设计[M]北京:地震出版社,2006Architecture Institute of Japan,and Liu Wen-guang translation.Isolated Structure Design[M].Beijing:Seismic Press,2006(in Japanese)
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[6]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003Guo Zhen-hai,Shi Xu-dong.Principle and Analysis of Reinforced Concrete[M].Tsinghua University Press,2003(in Chinese)
[7]郑明军,王文静,陈政南,吴利军.橡胶Mooney-Rivlin模型力学性能常数的确定[J].橡胶工业,2003,40(8):463～465Zheng Ming-jun,Wang Wen-jing,Chen Zheng-nan,Wu Li-jun.Rubber Mooney-Rivlin model for determining the mechanical properties of constants[J].Rubber Industries,2003,40(8):463～465(in Chinese)
[8]江宜城,聂肃非,等.多铅芯橡胶隔震支座非线性力学性能试验研究及其有限元分析[J].工程力学,2008,25(7):11～17Jiang Yi-cheng,Nie Su-fei,et al.Many lead-rubber bearings nonlinear mechanical properties of the pilot study and finite element analysis[J].Engineering Mechanics,2008,25(7):11～17(in Chinese)
[9]Nagarajaiah S and Ferrell K.Stability of elastomeric isolation bearings[J].J.Stuct.Engrg.,ASCE,1999,125(9):946～954
[10]周福霖.工程结构减震控制[M].北京:地震出版社,1997Zhou Fu-lin.Damping Control Engineering Structures[M].Beijing.Seismic Press,1997(in Chinese)
[2]李慧,姚云龙,杜永峰,党育,韩建平.叠层橡胶支座与柱串联体系动力失稳特性探讨[J].世界地震工程,2005,21(1):18～23Li Hui,Yao Yun-long,Du Yong-feng,Dang Yu,Han Jian-ping.Laminated rubber bearing tandem column system with the characteristics of dynamic instability[J].World Earthquake Engineering,2005,21(1):18～23(in Chinese)
[3]周锡元,韩淼,曾德民,马东辉.橡胶支座与R/C柱串联隔震系统水平刚度系数[J].振动工程学报,1999,12(2):157～165Zhou Xi-yuan,Han Miao,Zeng De-min,Ma Dong-hui.Rubber bearing with the R/C column in series the level of isolation system stiffness coefficient[J].Vibration Engineering,1999,12(2):157～165(in Chinese)
[4]日本建筑学会著,刘文光译.隔震结构设计[M]北京:地震出版社,2006Architecture Institute of Japan,and Liu Wen-guang translation.Isolated Structure Design[M].Beijing:Seismic Press,2006(in Japanese)
[5]张新培.钢筋混凝土抗震结构非线性分析[M].北京:科学出版社,2003Zhang Xin-pei.Reinforced Concrete Seismic Structural Nonlinear Analysis[M].Beijing:Seismic Press.2003(in Chinese)
[6]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003Guo Zhen-hai,Shi Xu-dong.Principle and Analysis of Reinforced Concrete[M].Tsinghua University Press,2003(in Chinese)
[7]郑明军,王文静,陈政南,吴利军.橡胶Mooney-Rivlin模型力学性能常数的确定[J].橡胶工业,2003,40(8):463～465Zheng Ming-jun,Wang Wen-jing,Chen Zheng-nan,Wu Li-jun.Rubber Mooney-Rivlin model for determining the mechanical properties of constants[J].Rubber Industries,2003,40(8):463～465(in Chinese)
[8]江宜城,聂肃非,等.多铅芯橡胶隔震支座非线性力学性能试验研究及其有限元分析[J].工程力学,2008,25(7):11～17Jiang Yi-cheng,Nie Su-fei,et al.Many lead-rubber bearings nonlinear mechanical properties of the pilot study and finite element analysis[J].Engineering Mechanics,2008,25(7):11～17(in Chinese)
[9]Nagarajaiah S and Ferrell K.Stability of elastomeric isolation bearings[J].J.Stuct.Engrg.,ASCE,1999,125(9):946～954
[10]周福霖.工程结构减震控制[M].北京:地震出版社,1997Zhou Fu-lin.Damping Control Engineering Structures[M].Beijing.Seismic Press,1997(in Chinese)
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