组合式三维隔震支座力学性能试验研究
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摘要
提出并设计了一种新型组合式三维隔震支座(3DIB),该支座由铅芯橡胶支座(LRB)和组合式碟形弹簧竖向隔震支座(DSB)组合而成,并进行了性能试验。性能试验结果表明,3DIB具有与LRB类似的水平特性、与DSB近似的竖向特性。3DIB具有可变的水平刚度与竖向刚度,水平等效阻尼比与竖向等效阻尼比均达到20%左右,并且具有较高的承载力,可以用于建筑结构的三维隔震。
A new style base isolation device,which is called combined 3-dimensional isolation bearing(3DIB),is introduced in this paper.3DIB is composed of lead rubber bearing(LRB)and disk spring bearing(DSB).In order to verify the 3D performance of the 3DIB,several performance tests are conducted.The results show that the LRB is used for horizontal isolation and the DSB is for vertical isolation,the horizontal properties and vertical properties of the 3DIB are determined by LRB and DSB,respectively.With high load capacity,variable stiffness and high damping,the 3DIB can be used in 3-dimensional base-isolated buildings.
A new style base isolation device,which is called combined 3-dimensional isolation bearing(3DIB),is introduced in this paper.3DIB is composed of lead rubber bearing(LRB)and disk spring bearing(DSB).In order to verify the 3D performance of the 3DIB,several performance tests are conducted.The results show that the LRB is used for horizontal isolation and the DSB is for vertical isolation,the horizontal properties and vertical properties of the 3DIB are determined by LRB and DSB,respectively.With high load capacity,variable stiffness and high damping,the 3DIB can be used in 3-dimensional base-isolated buildings.
引文
[1]Satish Nagarajaiah,Sun Xiao-hong.Response of base-isolated USC building in Northridge Earthquake[J].Journal of Structural Engineering,2000,126(10):1177～1186
[2]Bozorgnia Y,Niazi M,Compbell K W.Characteristics of free-field vertical ground motion in the1994Northridge Earthquake[J].Earthquake Spectra,1995,11(4):515～525
[3]Bozorgnia Y,Niazi M.Distance scaling of vertical and horizontal response spectra of the Loma Prieta Earthquake[J].Journal of Earthquake Engineering and Structural Dynamics,1993,22(8):695～707
[4]FUJITA S,KATO E,KASHIWAZAKI A.Shake Table Tests on Three-Dimensional Vibration Isolation System Comprising Rubber Bearing and Coil Spring[A].Proceedings of11th World Conference on Earthquake Engineering.1996
[5]KAGEYAMA MITSURU,HINO YOSHIHIKO,MORO SATOSHI.Study on three-dimensional seismic isolation system for next generation nuclear power plant:independent cable reinforced rolling-seal air spring[A].American Society of Mechanical Engineers,Pressure Vessels and Piping Division(Publication)PVP.San Diego,California USA,2004:49～56
[6]SUHARA JUNJI,OKADA YASUO TAMURA TADASHI.Development of three dimensional seismic isolation device with laminated rubber bearing and rolling seal type air spring[A].American Society of Mechanical Engineers,Pressure Vessels and Piping Division(Publication)PVP.Vancouver,Canada,2002:43～48
[7]熊世树,陈金凤,梁波,苏经宇.三维基础隔震结构多维地震反应的非线性分析[J].华中科技大学学报(自然科学版),2004,32(12):81～84Xiong Shi-shu,Chen Jin-feng,Liang Bo,Su Jing-yu.Nonlinear analysis of multi-dimensional seismic response in3D base isolated structure[J].J.Huazhong Univ.of Sci.&Tech.(Nature Science Edition),2004,32(12):81～84(in Chinese)
[8]熊世树,唐建设,梁波.装有3DB的三维隔震建筑的平扭-竖向地震反应分析[J].工程抗震与加固改造,2004(05):17～22Xiong Shi-shu,Tang Jian-she,Liang Bo.Analysis of lateral-tensional and vertical seismic response for base isolated building with3db isolator[J].Earthquake Resistant Engineering and Retrofitting,2004(05):17～22(in Chinese)
[9]魏陆顺,周福霖,任珉.三维隔震(振)支座的工程应用与现场测试[J].地震工程与工程振动,2007,27(03):121～125Wei Lu-shun,Zhou Fu-lin,Ren Min.Application of three-dimensional seismic and vibration isolator to building and site test[J].Journal of Earthquake Engineering and Engineering Vibration,2007,27(03):121～125(in Chinese)
[10]赵亚敏.三维基础隔震体系理论与振动台试验研究[D].北京:北京工业大学,2007.Zhao Ya-min.Shaking table tests and theoreticalresearch of three-dimensional base-isolated system[D].Beijing:Beijing University of Technology,2007(in Chinese)
[11]赵亚敏,苏经宇,周锡元,隋允康.组合式碟形弹簧竖向隔震支座的设计与性能试验研究[J].北京工业大学学报,2009,35(7):892～898Zhao Ya-min,Su Jing-yu,Zhou Xi-yuan,Sui Yun-kang.Design and performance tests of combined disk spring for vertical-isolated buildings[J].Journal of Beijing University of Technology,2009,35(7):892～898(in Chinese)
[2]Bozorgnia Y,Niazi M,Compbell K W.Characteristics of free-field vertical ground motion in the1994Northridge Earthquake[J].Earthquake Spectra,1995,11(4):515～525
[3]Bozorgnia Y,Niazi M.Distance scaling of vertical and horizontal response spectra of the Loma Prieta Earthquake[J].Journal of Earthquake Engineering and Structural Dynamics,1993,22(8):695～707
[4]FUJITA S,KATO E,KASHIWAZAKI A.Shake Table Tests on Three-Dimensional Vibration Isolation System Comprising Rubber Bearing and Coil Spring[A].Proceedings of11th World Conference on Earthquake Engineering.1996
[5]KAGEYAMA MITSURU,HINO YOSHIHIKO,MORO SATOSHI.Study on three-dimensional seismic isolation system for next generation nuclear power plant:independent cable reinforced rolling-seal air spring[A].American Society of Mechanical Engineers,Pressure Vessels and Piping Division(Publication)PVP.San Diego,California USA,2004:49～56
[6]SUHARA JUNJI,OKADA YASUO TAMURA TADASHI.Development of three dimensional seismic isolation device with laminated rubber bearing and rolling seal type air spring[A].American Society of Mechanical Engineers,Pressure Vessels and Piping Division(Publication)PVP.Vancouver,Canada,2002:43～48
[7]熊世树,陈金凤,梁波,苏经宇.三维基础隔震结构多维地震反应的非线性分析[J].华中科技大学学报(自然科学版),2004,32(12):81～84Xiong Shi-shu,Chen Jin-feng,Liang Bo,Su Jing-yu.Nonlinear analysis of multi-dimensional seismic response in3D base isolated structure[J].J.Huazhong Univ.of Sci.&Tech.(Nature Science Edition),2004,32(12):81～84(in Chinese)
[8]熊世树,唐建设,梁波.装有3DB的三维隔震建筑的平扭-竖向地震反应分析[J].工程抗震与加固改造,2004(05):17～22Xiong Shi-shu,Tang Jian-she,Liang Bo.Analysis of lateral-tensional and vertical seismic response for base isolated building with3db isolator[J].Earthquake Resistant Engineering and Retrofitting,2004(05):17～22(in Chinese)
[9]魏陆顺,周福霖,任珉.三维隔震(振)支座的工程应用与现场测试[J].地震工程与工程振动,2007,27(03):121～125Wei Lu-shun,Zhou Fu-lin,Ren Min.Application of three-dimensional seismic and vibration isolator to building and site test[J].Journal of Earthquake Engineering and Engineering Vibration,2007,27(03):121～125(in Chinese)
[10]赵亚敏.三维基础隔震体系理论与振动台试验研究[D].北京:北京工业大学,2007.Zhao Ya-min.Shaking table tests and theoreticalresearch of three-dimensional base-isolated system[D].Beijing:Beijing University of Technology,2007(in Chinese)
[11]赵亚敏,苏经宇,周锡元,隋允康.组合式碟形弹簧竖向隔震支座的设计与性能试验研究[J].北京工业大学学报,2009,35(7):892～898Zhao Ya-min,Su Jing-yu,Zhou Xi-yuan,Sui Yun-kang.Design and performance tests of combined disk spring for vertical-isolated buildings[J].Journal of Beijing University of Technology,2009,35(7):892～898(in Chinese)
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