高层隔震结构振动台试验及数值分析
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摘要
通过对高宽比为2.5(小高宽比)和5(大高宽比)的高层隔震结构的振动台试验及数值分析表明,高层隔震结构具有较好的水平减震效果.地震作用下,小高宽比高层隔震结构的变形以隔震层剪切变形为主,大高宽比高层隔震结构不仅有隔震层剪切变形,而且也包含上部结构剪切和弯曲变形.进行大高宽比高层或超高层隔震结构设计计算时应同时考虑上部结构剪切和弯曲变形的影响.
Experimental study and numerical analysis been completed for a high-rise isolated steel frame model with aspect ratio 5 and 2.5 in the paper.The experiment results show that the high-rise isolated structure with small and large aspect ratio have good isolation effect under the earthquake.The shear deformation is more occurred for the small aspect ratio and the bend and shear deformation is occurred for the large aspect ration isolation structure.The bend and shear deformation of superstructure is important for the large aspect ratio high-rise isolated structure and super high-rise isolated structure.
Experimental study and numerical analysis been completed for a high-rise isolated steel frame model with aspect ratio 5 and 2.5 in the paper.The experiment results show that the high-rise isolated structure with small and large aspect ratio have good isolation effect under the earthquake.The shear deformation is more occurred for the small aspect ratio and the bend and shear deformation is occurred for the large aspect ration isolation structure.The bend and shear deformation of superstructure is important for the large aspect ratio high-rise isolated structure and super high-rise isolated structure.
引文
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[2]刘文光.橡胶隔震支座力学性能及隔震结构地震反应分析研究[D]:北京:北京工业大学建筑工程学院,2003:13-17.LI UWen-guang.Mechanics properties of rubber bearings and earthquake response analysis of isolated structure[D]:Beijing:College of Architecture and Civil Engineering,Beijing University of Technology,2003:13-17.(in Chinese)
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[9]何文福,霍达,刘文光,等.长周期隔震结构地震反应分析[J].北京工业大学学报,2008,34(4):391-397.HE Wen-fu,HUO Da,LI U Wen-guang,et al.Study on long period portion of acceleration design spectra[J].Journal ofBeijing Universtity of Technology,2008,34(4):391-397.(in Chinese)
[10]何文福,刘文光,霍达,等.铅芯橡胶支座滞回曲线的扁环现象及其恢复力模型[J].郑州大学学报:工学版,2006,27(4):71-74.HE Wen-fu,LI UWen-guang,HUO Da,et al.Flat-loop effect and hysteresis property of the rubber bearings[J].Journal ofZhengzhou University:Engineering Science,2006,27(4):71-74.(in Chinese)
[11]何文福,刘文光,杨彦飞,等.橡胶支座水平剪切弹塑性力学性能试验研究[J].兰州理工大学学报,2007,33(3):120-123.HE Wen-fu,LI U Wen-guang,YANG Yan-fei,et al.Experimental investigation of elasticplastic mechanical behaviour ofhorizontal shearing of rubber bearings[J].Journal of Lanzhou University of Technology,2007,33(3):120-123.(inChinese)
[12]PKT V,PAUL D K.Force-deformation behavior of isolation bearings[J].Journal of Bridge Engineering,2007,12(4):527-529.
[13]WONGPRASERTN,SYMANS M D.Experimental evaluation of adaptive elastomeric base-isolated structures using variable-orifice fluid dampers[J].Journal of Structural Engineering,2005,131(6):867-877.
[14]TSAI M,WU S,CHANG K,et al.Shaking table tests of a scaled bridge model with rolling-type seismic isolation bearings[J].Engineering Structures,2007,29(5):694-702.
[15]NAGARAJAIAHS,REINHORNAM,CONSTANTINOUMC.Torsion in base-isolated structures with elastomeric isolationsystems[J].Journal of Structural Engineering,1993,119(10):2932-2951.
[16]HOUSNER G W,BERGMAN L A,CAUGHEY T K,et al.Structural control:past,present,and future[J].Journal ofEngineering Mechanics,1997,123(9):897-971.
[17]JANGID R S.Seismic response of isolated bridges[J].Journal of Bridge Engineering,2004,9(2):156-166.
[18]GAVI N HP,ALDEMIR U.Optimal control of earthquake response using semiactive isolation[J].Journal of EngineeringMechanics,2005,131(8):769-776.
[2]刘文光.橡胶隔震支座力学性能及隔震结构地震反应分析研究[D]:北京:北京工业大学建筑工程学院,2003:13-17.LI UWen-guang.Mechanics properties of rubber bearings and earthquake response analysis of isolated structure[D]:Beijing:College of Architecture and Civil Engineering,Beijing University of Technology,2003:13-17.(in Chinese)
[3]PKTV,PAUL D K.Force-deformation behavior of isolation bearings[J].Journal of Bridge Engineering,2007,12(4):527-529.
[4]YOSHIDA J,ABE M,FUJI NO Y,et al.Three-dimensional finite-element analysis of high damping rubber bearings[J].Journal of Engineering Mechanics,2004,130(5):607-620.
[5]小琦均,铃木重信,向野聪彦,等.适合超高层隔震建筑天然橡胶隔震支座相关研究[C]∥日本建筑学会学术讲演梗概集.东京:日本建筑学会,2000:639-640.SUZUKI Shigenobu,KIKUCHI Takashi,YOSHIZAWA Toshikazu,et al.Study on natural rubber bearings for base isolatedhigh-rise building[C]∥Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan.Tokyo:Architectural Institute of Japan,2000:639-640.(in Japanese)
[6]岸本光平,长濑正,河田康夫.42层超高层RC隔震结构的设计[C]∥日本建筑学会学术讲演梗概集.东京:日本建筑学会,2001:705-706.KISHIMOTO Kouhei,NAGASE Tadashi,KAWADA Yasuo,et al.Design of 42-story reinforced concrete building with baseisolation system[C]∥Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan.Tokyo:ArchitecturalInstitute of Japan,2001:705-706.(in Japanese)
[7]YOSHIDA J,ABE M,FUJI NO Y,et al.Three-dimensional finite-element analysis of high damping rubber bearings[J].Journal of Engineering Mechanics,2004,130(5):607-620.
[8]HWANG J,HSU T.Experimental study of isolated building under triaxial ground excitations[J].Journal of StructuralEngineering,2000,126(8):879-886.
[9]何文福,霍达,刘文光,等.长周期隔震结构地震反应分析[J].北京工业大学学报,2008,34(4):391-397.HE Wen-fu,HUO Da,LI U Wen-guang,et al.Study on long period portion of acceleration design spectra[J].Journal ofBeijing Universtity of Technology,2008,34(4):391-397.(in Chinese)
[10]何文福,刘文光,霍达,等.铅芯橡胶支座滞回曲线的扁环现象及其恢复力模型[J].郑州大学学报:工学版,2006,27(4):71-74.HE Wen-fu,LI UWen-guang,HUO Da,et al.Flat-loop effect and hysteresis property of the rubber bearings[J].Journal ofZhengzhou University:Engineering Science,2006,27(4):71-74.(in Chinese)
[11]何文福,刘文光,杨彦飞,等.橡胶支座水平剪切弹塑性力学性能试验研究[J].兰州理工大学学报,2007,33(3):120-123.HE Wen-fu,LI U Wen-guang,YANG Yan-fei,et al.Experimental investigation of elasticplastic mechanical behaviour ofhorizontal shearing of rubber bearings[J].Journal of Lanzhou University of Technology,2007,33(3):120-123.(inChinese)
[12]PKT V,PAUL D K.Force-deformation behavior of isolation bearings[J].Journal of Bridge Engineering,2007,12(4):527-529.
[13]WONGPRASERTN,SYMANS M D.Experimental evaluation of adaptive elastomeric base-isolated structures using variable-orifice fluid dampers[J].Journal of Structural Engineering,2005,131(6):867-877.
[14]TSAI M,WU S,CHANG K,et al.Shaking table tests of a scaled bridge model with rolling-type seismic isolation bearings[J].Engineering Structures,2007,29(5):694-702.
[15]NAGARAJAIAHS,REINHORNAM,CONSTANTINOUMC.Torsion in base-isolated structures with elastomeric isolationsystems[J].Journal of Structural Engineering,1993,119(10):2932-2951.
[16]HOUSNER G W,BERGMAN L A,CAUGHEY T K,et al.Structural control:past,present,and future[J].Journal ofEngineering Mechanics,1997,123(9):897-971.
[17]JANGID R S.Seismic response of isolated bridges[J].Journal of Bridge Engineering,2004,9(2):156-166.
[18]GAVI N HP,ALDEMIR U.Optimal control of earthquake response using semiactive isolation[J].Journal of EngineeringMechanics,2005,131(8):769-776.
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