三塔斜拉桥地震响应分析
|
摘要
文章以山东济南建邦三塔斜拉桥为研究对象,采用有限元软件建立该桥有桩和无桩两种模型,进行了动力特性分析,并在不同工况下进行反应谱和弹性时程分析。两种模型的地震响应的结果表明,桩土效应对结构位移和内力影响较大,在对大跨度支撑体系斜拉桥进行抗震分析时,应该考虑桩土效应。
Taken Jianbang Bridge,a three-tower cable-stayed in Jinan City,Shandong Province as the research object,the article creates two models with piles and without piles by finite element software and makes an analysis of the dynamic characteristics,and response spectra and elastic time history at different operating conditions.The results of the seismic response of two models show that the effect of the pile has greater impact on soil structure displacements and internal forces.Thus,the effect of the pile and soil should be taken into consideration when the large spanned support system of cable-stayed bridge is analyzed seismically.
Taken Jianbang Bridge,a three-tower cable-stayed in Jinan City,Shandong Province as the research object,the article creates two models with piles and without piles by finite element software and makes an analysis of the dynamic characteristics,and response spectra and elastic time history at different operating conditions.The results of the seismic response of two models show that the effect of the pile has greater impact on soil structure displacements and internal forces.Thus,the effect of the pile and soil should be taken into consideration when the large spanned support system of cable-stayed bridge is analyzed seismically.
引文
[1]范立础,胡世德,叶爱君.大跨度桥梁抗震设计[J].北京:人民交通,2001,(03).
[2]范立础.桥梁抗震[M].上海:同济大学出版社,1996.
[3]公路桥梁抗震设计细则(JTG/T B02-01-2008).
[4]李国豪.桥梁结构稳定与振动[M].北京:中国铁道出版社,1992.
[2]范立础.桥梁抗震[M].上海:同济大学出版社,1996.
[3]公路桥梁抗震设计细则(JTG/T B02-01-2008).
[4]李国豪.桥梁结构稳定与振动[M].北京:中国铁道出版社,1992.
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