钢管混凝土提篮式拱桥动力特性及参数敏感性分析
|
摘要
以某大跨径钢管混凝土提篮式拱桥为研究对象,结合大型通用有限元程序,建立了3种基于不同假定的实桥空间有限元计算模型,利用子空间(Subspace)迭代法计算了该桥结构的自振频率和振型,并对3种模型的计算结果进行了对比分析;研究了拱肋内倾角、含钢率、钢管直径、混凝土弹性模量、横撑布置等结构参数对结构动力特性的影响。分析结果可为该类桥的动力设计提供参考依据。
A long-span concrete-filled steel tube X-type arch bridge is taken as the studying basis.The bridge space finite element calculation model is built based on three different kinds of assumptions combining with large-scale finite element method procedure,the natural vibration frequencies and modes of the bridge are calculated with the subspace method,and the comparative analysis of computed results from the three kinds of models are carried out.The impacts of structure parameters,such as leaning angle,the ratio of concrete and steel,steel tube diameter,concrete elasticity modulus and cross-brace,on structure dynamic characteristic property are studied for the dynamic design of this bridge.
A long-span concrete-filled steel tube X-type arch bridge is taken as the studying basis.The bridge space finite element calculation model is built based on three different kinds of assumptions combining with large-scale finite element method procedure,the natural vibration frequencies and modes of the bridge are calculated with the subspace method,and the comparative analysis of computed results from the three kinds of models are carried out.The impacts of structure parameters,such as leaning angle,the ratio of concrete and steel,steel tube diameter,concrete elasticity modulus and cross-brace,on structure dynamic characteristic property are studied for the dynamic design of this bridge.
引文
[1]韩艳,陈政清.茅草街大桥动力特性有限元模拟与分析[J].公路,2003,(3).
[2]熊峰,刘浩吾.钢管混凝土模型拱动力特性分析[J].西南交通大学学报,2005,40(2).
[3]李国豪.桥梁结构稳定与振动[M].北京:中国铁道出版社,1992.
[4]吴永礼.计算固体力学方法[M].北京:科学出版社,2003.
[5]孙潮,陈宝春,陈水盛.钢管-钢管混凝土复合拱桥动力特性分析[J].地震工程与工程动,2001,21(2).
[6]章庆军,陈水福.钢管混凝土桁肋拱桥的有限元模型及动力特性分析[J].中国市政工程,2003,(3).
[7]施洲,夏招广,葛玉梅.钢管混凝土劲性骨架提篮拱桥动力试验及车桥耦合振动分析[J].铁道学报,2006,28(6).
[8]冯仲仁,李彩霞,吴刚刚.下承式钢管混凝土拱桥自振特性的有限元分析[J].武汉理工大学学报,2005,27(7).
[9]陈淮,朱倩,葛素娟,等.韩江北桥主桥动力特性研究[J].铁道科学与工程学报,2005,2(5).
[10]李传习,郭科.南宁永和大桥动力特性研究[J].长沙理工大学学报(自然科学版),2005,2(4).
[11]陈宝春,郑皆连.钢管混凝土拱桥实例集(一)[M].北京:人民交通出版社,2002.
[12]王莲香,周水兴.马来西亚吉隆坡普特拉贾亚城的斜拉拱组合桥[J].世界桥梁,2004,(4).
[13]陈宝春.钢管混凝土拱桥发展综述[J].桥梁建设,1997,(2).
[2]熊峰,刘浩吾.钢管混凝土模型拱动力特性分析[J].西南交通大学学报,2005,40(2).
[3]李国豪.桥梁结构稳定与振动[M].北京:中国铁道出版社,1992.
[4]吴永礼.计算固体力学方法[M].北京:科学出版社,2003.
[5]孙潮,陈宝春,陈水盛.钢管-钢管混凝土复合拱桥动力特性分析[J].地震工程与工程动,2001,21(2).
[6]章庆军,陈水福.钢管混凝土桁肋拱桥的有限元模型及动力特性分析[J].中国市政工程,2003,(3).
[7]施洲,夏招广,葛玉梅.钢管混凝土劲性骨架提篮拱桥动力试验及车桥耦合振动分析[J].铁道学报,2006,28(6).
[8]冯仲仁,李彩霞,吴刚刚.下承式钢管混凝土拱桥自振特性的有限元分析[J].武汉理工大学学报,2005,27(7).
[9]陈淮,朱倩,葛素娟,等.韩江北桥主桥动力特性研究[J].铁道科学与工程学报,2005,2(5).
[10]李传习,郭科.南宁永和大桥动力特性研究[J].长沙理工大学学报(自然科学版),2005,2(4).
[11]陈宝春,郑皆连.钢管混凝土拱桥实例集(一)[M].北京:人民交通出版社,2002.
[12]王莲香,周水兴.马来西亚吉隆坡普特拉贾亚城的斜拉拱组合桥[J].世界桥梁,2004,(4).
[13]陈宝春.钢管混凝土拱桥发展综述[J].桥梁建设,1997,(2).
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