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基于塔-索-拱建模的大跨钢管混凝土拱桥施工阶段动力特性研究

DOI: 10.3969/j.issn.1674-0696.2014.05.04, PP. 17-22

Keywords: 桥梁工程,塔-索-拱,钢管混凝土拱桥,一体化建模,振型,动力特性,基频,耦合,bridgeengineering,tower-cable-arch,concretefilledsteeltubular(CFST)archbridge,integrationmodeling,modeofvibration,dynamiccharacteristics,fundamentalfrequency,couplingeffect

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Abstract:

:?扣塔、扣索和拱肋之间存在耦合效应,塔-索-拱一体化建模才能真实反应大跨度钢管混凝土拱桥施工阶段的动力特性。运用有限元软件ANSYS,建立了塔-索-拱一体化施工阶段的目前最大跨度的钢管混凝土拱桥合江长江一桥(模型1),研究了该体系的动力特性,并与不考虑扣塔的索—拱模型(模型2)进行了对比。研究结果表明:考虑扣塔建模后,模型1的基频降低了12%,拱肋与扣塔相互耦合,高阶振型复杂,结构横桥向刚度弱,结构的风敏感性更为突出;两个模型的30阶后的频率接近一条直线,背、扣索的索力变化对低价频率影响不大。

References

[1]  [1]项海帆,刘光栋.拱结构的稳定与振动[M].北京:人民交通出版社,1991.
[2]  [6]连岳泉,梁群.单拱肋外倾式钢管混凝土拱桥动力特性分析[J].武汉理工大学学报:交通科学与工程版,2012,36(5):984-987,991.
[3]  [7]孙昊,钱永久,蔡迎春.结构参数变化对钢管混凝土拱桥动力特性的影响分析[J].重庆交通大学学报:自然科学版,2009,28(6):982- 985,1074.
[4]  Sun Hao,Qian Yongjiu,Cai Yingchun.Influence of structural parameters variation on dynamic characteristics of concrete filled steel tubular arch bridge [J].Journal of Chongqing Jiaotong University:Natural Science,2009,28(6):982-985,1074.
[5]  [9]龚曙光,谢桂兰.ANSYS操作命令与参数化编程[M].北京:机械工业出版社,2004.
[6]  Xiang Haifan,Liu Guangdong.Stability and Vibration of Arch Structures [M].Beijing:China Communications Press,1991.
[7]  [2]陈宝春.钢管混凝土拱桥[M].北京:人民交通出版社,2007.
[8]  Chen Baochun.Concrete-Filled Steel-Tube Arch Bridges [M].Beijing:China Communications Press,2000.
[9]  [3]黄福伟,刘怀林.中承式钢管混凝土拱桥动力特性分析[J].哈尔滨工业大学学报,2003,30(增刊1):255-258.
[10]  Huang fuwei,Liu huailin.Analysis of dynamic characteristics of half-through CFST arch bridges [J].Journal of Harbin Institute of Technology,2003,35(S1):255-258.
[11]  [4]陈水盛,陈宝春.钢管混凝土拱桥动力特性分析[J].公路,2001(2):10-14.
[12]  Chen Shuisheng,Chen Baochun.Analysis of dynamic characteristics of concrete filled steel tubular arch bridge [J].Highway,2001(2):10-14.
[13]  [5]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):50-53.
[14]  Feng Zhongren,Li Caixia,Wu Ganggang.Finite element analysis on through concrete-filled steel-tabular arch bridge’s self-vibration characteristics [J].Journal of Wuhan University of Technology,2005,27(7):50-53.
[15]  Lian Yuequan,Liang Qun.Dynamic characteristics analysis of extroversion CFST arch bridge with single rib [J].Journal of Wuhan University of Technology:Transportation Science & Engineering,2012,36(5):984-987,991.
[16]  [8]黄小伟,王浩,李爱群,等.中承式异形钢管混凝土拱桥动力特性分析[J].建筑科学与工程学报,2012,29(5):88-93.
[17]  Huang Xiaowei,Wang Hao,Li Aiqun,et al.Analysis on dynamic characteristics of half-through special-shaped CFST arch bridge [J].Journal of Architecture and Civil Engineering,2012,29(5):88-93.
[18]  Gong Shuguang,Xie Guilan.ANSYS Command and Parameter Programming [M].Beijing:China Machine Press,2004.

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