RC柱对串联隔震体系水平刚度影响研究
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摘要
为了研究RC柱对串联隔震体系水平刚度的影响,文章以串联隔震体系及其构件的水平刚度方程为基础,基于假定提出了串联隔震体系刚度的简化方程;以橡胶支座基本设计荷载和常用参数为依据,主要分析了RC柱的轴压比和高宽比对构件自身及整体水平刚度的影响;并与三组串联隔震体系的有限元分析数据进行对比,结果表明了公式的正确性和适用性。
In order to study the effect of reinforced concrete(RC)column on the horizontal stiffness of serial isolation system,and on the basis of the serial isolation system and the calculation formula of horizontal stiffness of laminated rubber bearing and column,the simplified calculation formula of the stiffness of serial isolation system is proposed based on the assumptions.According to the basic design loads and the common parameters of the laminated rubber bearing,the effect of axial compression ratio and aspect ratio of RC column on the components and the serial isolation system is studied respectively and compared with the data of three groups of finite element models.The results show that the calculation formula is correct and applicable.
In order to study the effect of reinforced concrete(RC)column on the horizontal stiffness of serial isolation system,and on the basis of the serial isolation system and the calculation formula of horizontal stiffness of laminated rubber bearing and column,the simplified calculation formula of the stiffness of serial isolation system is proposed based on the assumptions.According to the basic design loads and the common parameters of the laminated rubber bearing,the effect of axial compression ratio and aspect ratio of RC column on the components and the serial isolation system is studied respectively and compared with the data of three groups of finite element models.The results show that the calculation formula is correct and applicable.
引文
[1]Imbimbo M,Kelly J M.Stability of isolators at large horizontal displacements[J].Earthquake Spectra,1997,13(3):415-430.
[2]Kelly J M,Marsico M R.Stability and post-buckling behavior in nonbolted elastomeric isolators[J].Seismic Isolation Protect Syst,2010,1(1):41-54.
[3]Iizuka M.A macroscopic model for predicting large-deformation behaviors of laminated rubber bearings[J].Engineering Structures,2000,22(4):323-334.
[4]Amin A F M S,Wiraguna S I,Bhuiyan A R.Hyperelasticity model for finite element analysis of natural and high damping rubbers in compression and shear[J].Journal of Engineering Mechanics,2006,132(1):54-64.
[5]Ravari A K.P-Δand end rotation effects on the influence of mechanical properties of elastomeric isolation bearings[J].Journal of Structural Engineering,2012,138:669-675.
[6]刘文光,周福霖,庄学真.柱端隔震夹层橡胶垫力学性能试验研究[J].地震工程与工程振动,1999,19(3):121-126.
[7]张敏政,孟庆利,裴强.叠层橡胶隔震支座的动态稳定性和力学特性研究[J].地震工程与工程振动,2002,22(5):87-91.
[8]杨巧荣,庄学真,刘文光,等.夹层橡胶隔震支座全刚性性能、回转刚性及高压缩应力性能试验研究[J].地震工程与工程振动,2000,20(4):118-125.
[9]杜永峰,吴忠铁,范萍萍.端部固定转角对叠层橡胶支座水平刚度影响分析[J].合肥工业大学学报:自然科学版,2013,36(12):1489-1494.
[10]周锡元,韩淼.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):159-165.
[11]杜永峰,李慧.叠层橡胶垫与RC柱串联隔震体系的随机屈曲分析[J].防灾减灾工程学报,2010,30(Z1):16-21.
[12]杜永峰,朱前坤,李慧.串联隔震体系的大变形力学行为分析与试验[J].振动与冲击,2011,30(11):236-239.
[13]杜永峰,林治丹,李慧.橡胶支座与柱串联体系的动力特性分析[J].振动与冲击,2012,31(17):134-138.
[14]杜永峰,吴忠铁.考虑初始位移的串联隔震体系竖向承载力有限元分析[J].土木工程学报,2012,45(2):128-132.
[15]杜永峰,吴忠铁.串联隔震体系水平刚度的参数研究[J].振动与冲击,2013,32(23):68-73.
[16]吴应雄,祁皑,颜学渊.某首层柱顶隔震结构动力特性测试研究[J].地震工程与工程振动,2011,31(6):147-152.
[17]马长飞,谭平,周福霖.近场地震作用下考虑Ρ-Δ效应的首层柱顶隔震结构地震反应分析[J].振动工程学报,2012,25(4):439-445.
[18]GB 50011-2010,建筑抗震设计规范[S].
[19]党育,杜永峰,李慧.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,2007:242-255.
[2]Kelly J M,Marsico M R.Stability and post-buckling behavior in nonbolted elastomeric isolators[J].Seismic Isolation Protect Syst,2010,1(1):41-54.
[3]Iizuka M.A macroscopic model for predicting large-deformation behaviors of laminated rubber bearings[J].Engineering Structures,2000,22(4):323-334.
[4]Amin A F M S,Wiraguna S I,Bhuiyan A R.Hyperelasticity model for finite element analysis of natural and high damping rubbers in compression and shear[J].Journal of Engineering Mechanics,2006,132(1):54-64.
[5]Ravari A K.P-Δand end rotation effects on the influence of mechanical properties of elastomeric isolation bearings[J].Journal of Structural Engineering,2012,138:669-675.
[6]刘文光,周福霖,庄学真.柱端隔震夹层橡胶垫力学性能试验研究[J].地震工程与工程振动,1999,19(3):121-126.
[7]张敏政,孟庆利,裴强.叠层橡胶隔震支座的动态稳定性和力学特性研究[J].地震工程与工程振动,2002,22(5):87-91.
[8]杨巧荣,庄学真,刘文光,等.夹层橡胶隔震支座全刚性性能、回转刚性及高压缩应力性能试验研究[J].地震工程与工程振动,2000,20(4):118-125.
[9]杜永峰,吴忠铁,范萍萍.端部固定转角对叠层橡胶支座水平刚度影响分析[J].合肥工业大学学报:自然科学版,2013,36(12):1489-1494.
[10]周锡元,韩淼.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):159-165.
[11]杜永峰,李慧.叠层橡胶垫与RC柱串联隔震体系的随机屈曲分析[J].防灾减灾工程学报,2010,30(Z1):16-21.
[12]杜永峰,朱前坤,李慧.串联隔震体系的大变形力学行为分析与试验[J].振动与冲击,2011,30(11):236-239.
[13]杜永峰,林治丹,李慧.橡胶支座与柱串联体系的动力特性分析[J].振动与冲击,2012,31(17):134-138.
[14]杜永峰,吴忠铁.考虑初始位移的串联隔震体系竖向承载力有限元分析[J].土木工程学报,2012,45(2):128-132.
[15]杜永峰,吴忠铁.串联隔震体系水平刚度的参数研究[J].振动与冲击,2013,32(23):68-73.
[16]吴应雄,祁皑,颜学渊.某首层柱顶隔震结构动力特性测试研究[J].地震工程与工程振动,2011,31(6):147-152.
[17]马长飞,谭平,周福霖.近场地震作用下考虑Ρ-Δ效应的首层柱顶隔震结构地震反应分析[J].振动工程学报,2012,25(4):439-445.
[18]GB 50011-2010,建筑抗震设计规范[S].
[19]党育,杜永峰,李慧.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,2007:242-255.
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