城市匝道桥抗震分析及加固研究
|
摘要
以绵竹市回澜立交桥为工程实例,结合匝道桥实际震害,采用有限元软件SAP2000对该桥在地震作用下的抗震性能进行了分析计算。研究了匝道桥采用增加截面法和减隔震法进行抗震加固设计后的抗震性能。研究表明:采用增加截面法和减隔震法均能有效满足匝道桥的抗震安全性要求。
Taking Mianzhu Huilan interchange as an example,combined with the ramp bridge actual damage,the seismic performance of the bridge under earthquake is analyzed by using SAP2000 software. The seismic performance of the ramp bridge is evaluated by the increasing the cross-sectional method and the seismic isolation method. The results show that the increasing cross-sectional method and the seismic isolation method can effectively meet the seismic safety requirements of the ramp bridge.
Taking Mianzhu Huilan interchange as an example,combined with the ramp bridge actual damage,the seismic performance of the bridge under earthquake is analyzed by using SAP2000 software. The seismic performance of the ramp bridge is evaluated by the increasing the cross-sectional method and the seismic isolation method. The results show that the increasing cross-sectional method and the seismic isolation method can effectively meet the seismic safety requirements of the ramp bridge.
引文
[1]易建国.预应力混凝土环形曲线连续箱梁桥的设计[J].国外桥梁,1992(4):16~21Yi Jian-guo.Annular Curve Continuous Prestressed Concrete Box Girder Bridge Design[J].Foreign Bridges,1992,(4):16~21(in Chinese)
[2]Williams D,Godden W.Seismic Reponse of Long Curved Bridge Structures:Experimental Model Studies[J].Earthquake Engineering and Structural Dynamics,1979,7(2):107~128
[3]绵竹回澜大桥检测报告(080193号桥08065号)[R].成都:四川华腾公路试验检测有限责任公司,2008Mianzhu Huilan Bridge Inspection Report(No.080193Bridge No.08065)[R].Chengdu:Sichuan Huateng Hingway Engineering Test Checking Co.,Ltd,2008(in Chinese)
[4]周绪红,戴鹏.曲线PC箱梁桥隔震体系的非线性分析[J].中国公路学报,2008,21(1):65~71Zhou Xu-hong,Dai Peng.Nonlinear Analysis of the Curve PC Box Girder Bridge Isolation System[J].Chinese Journal of Highway,2008,21(1):65~71(in Chinese)
[5]赵国辉,刘健新.大兴路立交匝道桥震害原因分析及修复方案[J].桥梁建设,2011,(2):31~34Zhao Guo-hui,Liu Jian-xing.Daxing Road Interchange Bridge Damage Causes and Repair Scheme[J].Bridge Construction,2011,(2):31~34(in chinese)
[6]CJJ 166-2011,城市桥梁抗震设计规范[S]CJJ 166-2011,Urban Bridge Seismic Design Specifications(in Chinese)
[7]Zhao J X,Zhang J,Asano A,et al.Attenuation Relations of Strong Ground Motion in Japan Using Site Classification Based on Predominant Period[J].Bulletin of the Seismological Society of America,2006,96(3),898~913
[2]Williams D,Godden W.Seismic Reponse of Long Curved Bridge Structures:Experimental Model Studies[J].Earthquake Engineering and Structural Dynamics,1979,7(2):107~128
[3]绵竹回澜大桥检测报告(080193号桥08065号)[R].成都:四川华腾公路试验检测有限责任公司,2008Mianzhu Huilan Bridge Inspection Report(No.080193Bridge No.08065)[R].Chengdu:Sichuan Huateng Hingway Engineering Test Checking Co.,Ltd,2008(in Chinese)
[4]周绪红,戴鹏.曲线PC箱梁桥隔震体系的非线性分析[J].中国公路学报,2008,21(1):65~71Zhou Xu-hong,Dai Peng.Nonlinear Analysis of the Curve PC Box Girder Bridge Isolation System[J].Chinese Journal of Highway,2008,21(1):65~71(in Chinese)
[5]赵国辉,刘健新.大兴路立交匝道桥震害原因分析及修复方案[J].桥梁建设,2011,(2):31~34Zhao Guo-hui,Liu Jian-xing.Daxing Road Interchange Bridge Damage Causes and Repair Scheme[J].Bridge Construction,2011,(2):31~34(in chinese)
[6]CJJ 166-2011,城市桥梁抗震设计规范[S]CJJ 166-2011,Urban Bridge Seismic Design Specifications(in Chinese)
[7]Zhao J X,Zhang J,Asano A,et al.Attenuation Relations of Strong Ground Motion in Japan Using Site Classification Based on Predominant Period[J].Bulletin of the Seismological Society of America,2006,96(3),898~913
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心