隔震桥梁设计中组合阻尼比取值的研究现状
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摘要
工程师在使用弹性反应谱分析铅芯隔震支座桥梁时,需要确定组合阻尼比来实施等效线性化分析。美国、日本抗震规范均有相应公式规定,台湾学者也提出了规则桥梁的简化分析方法,而国内目前对此问题的研究不多。在调研多国规范和学者论文基础上,总结目前隔震桥组合阻尼比的确定方法,并简单介绍当前的研究进展,为下一步展开对该问题的深入研究打下基础。
When analyzing the bridges with seismic isolated lead supports by means of elastic response spectrum,engineers need to determine combined damping ratio for implementation of equivalent linear analysis.The corresponding formula provisions are available in seismic codes in U.S.A and Japan,and also scholars from Taiwan district propose simplified analysis methods for regular bridges,nevertheless as of now this issue is less studied at home.On the basis of investigating multinational codes and scholars' theses,this paper draws a conclusion on determination methods for combined damping ration of seismic isolated bridges at present,and briefly introduces development of current study,laying a foundation for further expansion of deeper study on this issue.
When analyzing the bridges with seismic isolated lead supports by means of elastic response spectrum,engineers need to determine combined damping ratio for implementation of equivalent linear analysis.The corresponding formula provisions are available in seismic codes in U.S.A and Japan,and also scholars from Taiwan district propose simplified analysis methods for regular bridges,nevertheless as of now this issue is less studied at home.On the basis of investigating multinational codes and scholars' theses,this paper draws a conclusion on determination methods for combined damping ration of seismic isolated bridges at present,and briefly introduces development of current study,laying a foundation for further expansion of deeper study on this issue.
引文
[1]范立础.桥梁减隔震设计[M].北京:人民交通出版社,2001.
[2]AASHTO.Guide Specifications for Seismic Isolation De-sign[M].Washington D.C.:AASHTO,2000.
[3]重庆交通科研设计院.JTG/J B02-01—2008公路桥梁抗震设计细则[S].北京:人民交通出版社,2008.
[4]朱东升,等.LRB隔震桥梁的等效线性化设计方法[J].工程力学,2000(增):466-462.
[5]孔德怡,等.桥梁隔震设计中几种等效线性化方法比较研究[J].公路交通科技,2008,25(2):73-78.
[6]Japan Road Association.Design Specifications of High-way Bridges Part V.Seismic Design[M].[S.l.]:Japan RoadAssociation,1998.
[7]J S Hwang,等.隔震规则桥梁的组合阻尼比[J].赵松岐,译.世界地震工程,1997,13(3):80-88.
[8]普瑞斯特雷,等.桥梁抗震设计与加固[M].北京:人民交通出版社,1997.
[9]周锡元,等.规则型隔震桥梁结构的简化分析方法[J].土木工程学报,2001,34(2):53-66.
[10]黄建文,朱晞,等.隔震桥梁结构的简化反应分析及设计参数研究[J].北方交通大学学报,2004,28(1):17-22.
[11]彭伟.减隔震桥梁非经典阻尼问题与简化分析方法[D].上海:同济大学,2006.
[12]楼梦麟,雍国柱,等.阻尼特性对组合结构地震反应的影响[J].建筑科学与工程学报,2007,24(2):24-29.
[2]AASHTO.Guide Specifications for Seismic Isolation De-sign[M].Washington D.C.:AASHTO,2000.
[3]重庆交通科研设计院.JTG/J B02-01—2008公路桥梁抗震设计细则[S].北京:人民交通出版社,2008.
[4]朱东升,等.LRB隔震桥梁的等效线性化设计方法[J].工程力学,2000(增):466-462.
[5]孔德怡,等.桥梁隔震设计中几种等效线性化方法比较研究[J].公路交通科技,2008,25(2):73-78.
[6]Japan Road Association.Design Specifications of High-way Bridges Part V.Seismic Design[M].[S.l.]:Japan RoadAssociation,1998.
[7]J S Hwang,等.隔震规则桥梁的组合阻尼比[J].赵松岐,译.世界地震工程,1997,13(3):80-88.
[8]普瑞斯特雷,等.桥梁抗震设计与加固[M].北京:人民交通出版社,1997.
[9]周锡元,等.规则型隔震桥梁结构的简化分析方法[J].土木工程学报,2001,34(2):53-66.
[10]黄建文,朱晞,等.隔震桥梁结构的简化反应分析及设计参数研究[J].北方交通大学学报,2004,28(1):17-22.
[11]彭伟.减隔震桥梁非经典阻尼问题与简化分析方法[D].上海:同济大学,2006.
[12]楼梦麟,雍国柱,等.阻尼特性对组合结构地震反应的影响[J].建筑科学与工程学报,2007,24(2):24-29.
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