非线性粘滞阻尼器对大跨CFRP索斜拉桥抗震性能影响研究
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摘要
为探讨碳纤维复合材料(CFRP)索斜拉桥的阻尼器减震控制适用性及设计参数选取,以苏通大桥为背景,建立钢索斜拉桥的有限元模型,根据等轴向刚度准则换索得到CFRP索斜拉桥模型。采用时程分析法对所取目标函数作参数敏感性分析,并对2种索的斜拉桥减震控制效果进行比较,得到粘滞阻尼器设计参数的合理取值范围。分析表明:主梁端附加阻尼器对斜拉桥结构的减震控制有很好的补充作用;阻尼器参数相同时,CFRP索斜拉桥可获得较优的减震效果。
To study the applicability and design parameter selection for seismic-reduction control of the viscous dampers for cable-stayed bridge with carbon fiber reinforced plastics(CFRP) cables,the Sutong Bridge was taken as the research object,the finite element model of the cable-stayed bridge with steel cables was established and the model of the bridge with the CFRP cables was then obtained by replacement of the steel cables according to the principle of equivalent axial rigidity.The time-history method was used to conduct the parameter sensitivity analysis of the selected object functions and the effect of the seismic-reduction control of the viscous dampers for the bridges respectively with the CFRP cables and steel cables was compared to find out rational value range of the design parameters of the dampers.The results of the analysis show that the dampers attached at the ends of the main girders of the bridges have very good supplementary action to the seismic-reduction control.At the time the parameters of the dampers are identical,the bridge with the CFRP cables can achieve better effect of the seismic-reduction control.
To study the applicability and design parameter selection for seismic-reduction control of the viscous dampers for cable-stayed bridge with carbon fiber reinforced plastics(CFRP) cables,the Sutong Bridge was taken as the research object,the finite element model of the cable-stayed bridge with steel cables was established and the model of the bridge with the CFRP cables was then obtained by replacement of the steel cables according to the principle of equivalent axial rigidity.The time-history method was used to conduct the parameter sensitivity analysis of the selected object functions and the effect of the seismic-reduction control of the viscous dampers for the bridges respectively with the CFRP cables and steel cables was compared to find out rational value range of the design parameters of the dampers.The results of the analysis show that the dampers attached at the ends of the main girders of the bridges have very good supplementary action to the seismic-reduction control.At the time the parameters of the dampers are identical,the bridge with the CFRP cables can achieve better effect of the seismic-reduction control.
引文
[1]周云.粘滞阻尼减震结构设计[M].武汉:武汉理工大学出版社,2006.(ZHOU Yun.Design of Viscous Damping Structure[M].Wu-han:Wuhan University of Technology Press,2006.in Chi-nese)
[2]叶爱君,胡世德,范立础.超大跨度斜拉桥的地震位移控制[J].土木工程学报,2004,37(12):38-43.(YE Ai-jun,HU Shi-de,FAN Li-chu.Control of Earthquake-Induced Displacement of Very Long Span Cable-Stayed Bridges[J].China Civil Engineering Journal,2004,37(12):38-43.in Chinese)
[3]Christoffersen Jens(COWI),Jensen Henrik Elgaard,HaugeLars,et al.Innovative Cable-Stayed Bridge[J].Concrete(London),1998,32(7):32-34.
[4]Grace Nabil F,Navarre Frederick C.Design and Constructionof Bridge Street Bridge—First CFRP Bridge in the UnitedStates[J].PCI Journal,2002,47(5):20-35.
[5]梅葵花,吕志涛.CFRP在超大跨悬索桥和斜拉桥中的应用前景[J].桥梁建设,2002,(2):75-78.(MEI Kui-hua,LU Zhi-tao.Application Prospect of CFRP toSuper Length Suspension Bridge and Cable-Stayed Bridge[J].Bridge Construction,2002,(2):75-78.in Chinese)
[6]刘荣桂,李成绩,龚向华,等.碳纤维斜拉索的动力参数特性分析[J].哈尔滨工业大学学报,2008,40(8):1 284-1 288.(LIU Rong-gui,LI Cheng-ji,GONG Xiang-hua,et al.Analy-sis of Dynamic Properties for CFRP Stayed Cables[J].Journalof Harbin Institute of Technology,2008,40(8):1 284-1 288.in Chinese)
[7]吕志涛,梅葵花.国内首座CFRP索斜拉桥的研究[J].土木工程学报,2007,40(1):54-59.(LU Zhi-tao,MEI Kui-hua.First Application of CFRP Cablesfor a Cable-Stayed Bridge in China[J].China Civil EngineeringJournal,2007,40(1):54-59.in Chinese)
[8]刘荣桂,许飞,蔡东升,等.CFRP拉索斜拉桥静载试验分析[J].中国公路学报,2009,22(2):48-52.(LIU Rong-gui,XU Fei,CAI Dong-sheng,et al.Analysis ofStatic Load Test for Cable-Stayed Bridge with CFRP Cables[J].China Journal of Highway and Transport,2009,22(2):48-52.in Chinese)
[9]刘荣桂,周士金,许飞,等.CFRP拉索斜拉桥模态试验与分析[J].桥梁建设,2009,(3):29-32.(LIU Rong-gui,ZHOU Shi-jin,XU Fei,et al.Modal Testand Analysis of Cable-Stayed Bridge Used with CFRP Stay Ca-bles[J].Bridge Construction,2009,(3):29-32.in Chinese)
[10]林元培.斜拉桥[M].北京:人民交通出版社,2004.(LIN Yuan-pei.Cable-Stayed Bridges[M].Beijing:ChinaCommunication Press,2004.in Chinese)
[11]茂盛(亚洲)工程顾问有限公司.苏通大桥施工过程计算分析报告[R].香港:茂盛(亚洲)工程顾问有限公司,2005.(Maunsell Consultants Asia Limited.Report of Calculationand Analysis of Construction Process of Sutong Bridge[R].Hongkong:Maunsell Consultants Asia Limited,2005.inChinese)
[12]苏通大桥建设指挥部.苏通大桥论文集[M].北京:中国科学技术出版社,2004.(Sutong Bridge Construction Commanding Department.Su-tong Bridge Symposium[M].Beijing:China Science andTechnology Press,2004.in Chinese)
[13]Ruangrassamee Anat,Kawashima Kazuhiko.Seismic Re-sponse Control of a Cable-Stayed Bridge by Variable Dampers[J].Journal of Earthquake Engineering,2006,10(1):153-165.
[14]Chang Chia-Ming,Loh Chin-Hsiung.Seismic Response Con-trol of Cable-Stayed Bridge Using Different Control Strategies[J].Journal of Earthquake Engineering,2006,10(4):481-508.
[2]叶爱君,胡世德,范立础.超大跨度斜拉桥的地震位移控制[J].土木工程学报,2004,37(12):38-43.(YE Ai-jun,HU Shi-de,FAN Li-chu.Control of Earthquake-Induced Displacement of Very Long Span Cable-Stayed Bridges[J].China Civil Engineering Journal,2004,37(12):38-43.in Chinese)
[3]Christoffersen Jens(COWI),Jensen Henrik Elgaard,HaugeLars,et al.Innovative Cable-Stayed Bridge[J].Concrete(London),1998,32(7):32-34.
[4]Grace Nabil F,Navarre Frederick C.Design and Constructionof Bridge Street Bridge—First CFRP Bridge in the UnitedStates[J].PCI Journal,2002,47(5):20-35.
[5]梅葵花,吕志涛.CFRP在超大跨悬索桥和斜拉桥中的应用前景[J].桥梁建设,2002,(2):75-78.(MEI Kui-hua,LU Zhi-tao.Application Prospect of CFRP toSuper Length Suspension Bridge and Cable-Stayed Bridge[J].Bridge Construction,2002,(2):75-78.in Chinese)
[6]刘荣桂,李成绩,龚向华,等.碳纤维斜拉索的动力参数特性分析[J].哈尔滨工业大学学报,2008,40(8):1 284-1 288.(LIU Rong-gui,LI Cheng-ji,GONG Xiang-hua,et al.Analy-sis of Dynamic Properties for CFRP Stayed Cables[J].Journalof Harbin Institute of Technology,2008,40(8):1 284-1 288.in Chinese)
[7]吕志涛,梅葵花.国内首座CFRP索斜拉桥的研究[J].土木工程学报,2007,40(1):54-59.(LU Zhi-tao,MEI Kui-hua.First Application of CFRP Cablesfor a Cable-Stayed Bridge in China[J].China Civil EngineeringJournal,2007,40(1):54-59.in Chinese)
[8]刘荣桂,许飞,蔡东升,等.CFRP拉索斜拉桥静载试验分析[J].中国公路学报,2009,22(2):48-52.(LIU Rong-gui,XU Fei,CAI Dong-sheng,et al.Analysis ofStatic Load Test for Cable-Stayed Bridge with CFRP Cables[J].China Journal of Highway and Transport,2009,22(2):48-52.in Chinese)
[9]刘荣桂,周士金,许飞,等.CFRP拉索斜拉桥模态试验与分析[J].桥梁建设,2009,(3):29-32.(LIU Rong-gui,ZHOU Shi-jin,XU Fei,et al.Modal Testand Analysis of Cable-Stayed Bridge Used with CFRP Stay Ca-bles[J].Bridge Construction,2009,(3):29-32.in Chinese)
[10]林元培.斜拉桥[M].北京:人民交通出版社,2004.(LIN Yuan-pei.Cable-Stayed Bridges[M].Beijing:ChinaCommunication Press,2004.in Chinese)
[11]茂盛(亚洲)工程顾问有限公司.苏通大桥施工过程计算分析报告[R].香港:茂盛(亚洲)工程顾问有限公司,2005.(Maunsell Consultants Asia Limited.Report of Calculationand Analysis of Construction Process of Sutong Bridge[R].Hongkong:Maunsell Consultants Asia Limited,2005.inChinese)
[12]苏通大桥建设指挥部.苏通大桥论文集[M].北京:中国科学技术出版社,2004.(Sutong Bridge Construction Commanding Department.Su-tong Bridge Symposium[M].Beijing:China Science andTechnology Press,2004.in Chinese)
[13]Ruangrassamee Anat,Kawashima Kazuhiko.Seismic Re-sponse Control of a Cable-Stayed Bridge by Variable Dampers[J].Journal of Earthquake Engineering,2006,10(1):153-165.
[14]Chang Chia-Ming,Loh Chin-Hsiung.Seismic Response Con-trol of Cable-Stayed Bridge Using Different Control Strategies[J].Journal of Earthquake Engineering,2006,10(4):481-508.
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