装配式波形钢腹板钢箱组合箱梁扭转性能分析

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英文篇名：Torsional Behavior of Prefabricated Composite Box Girders with Corrugated Steel Webs 作者：刘彬 ; 张博珊 英文作者：LIU Bin;ZHANG Boshan; 关键词：装配式桥梁 ; 波形钢腹板 ; 约束扭转 ; 畸变 ; 翘曲正应力 英文关键词：prefabricated bridge;;corrugated web;;restrained torsion;;distortion;;warping normal stress 中文刊名：SHGL 英文刊名：Shanghai Highways 机构：河北省高速公路张承承德管理处;同济大学桥梁工程系; 出版日期：2019-03-31 出版单位：上海公路 年：2019 期：No.152 语种：中文; 页：SHGL201901015 页数：6 CN：01 ISSN：31-1712/U 分类号：5+70-74

摘要

为了更好地推广装配式波形钢腹板钢箱组合梁,对其在偏心荷载作用下的扭转性能进行了研究。首先,基于乌曼斯基第二理论和能量原理,分别推导了装配式波形钢腹板钢箱组合梁的扭转约束、畸变控制微分方程,并计算了跨中截面翘曲正应力的理论值。随后,采用有限元分析软件ANSYS建立了相应的数值模型与数值分析结果。理论与数值分析均表明:截面顶、底板内的翘曲正应力呈反对称分布,且畸变是引起翘曲正应力的主要因素;波形钢腹板内的翘曲正应力很小,可以忽略不计。理论方法具有适用性和有效性。
        To promote application of the prefabricated composite box girders with corrugated steel webs.the torsional behavior under eccentric load is studied.Firstly, the governing differential equations of restrained torsion and distortion were derived by the second theory of Umanskii and the principle of energy respectively, and the theoretical results of warping normal stress at mid-span were obtained.Then, the corresponding finite element model was established by ANSYS and the numerical results were obtained.The study shows that warping normal stress distributes antisymmetric in the flanges and is mainly arising by distortion.and that in the corrugated steel webs could be ignored.Application of the theoretical approach is also proved by comparing the theoretical and numerical results.

引文

[1]郭金琼.箱形梁设计理论[M].北京:人民交通出版社,1991.
    [2]聂建国.钢一混凝土组合结构桥梁[M].北京:人民交通出版社,2011.
    [3] Lindner J, editor Lateral torsional buckling of beams with trapezoidally corrugated webs. Proceedings of the 4th International Colloquium on Stability of Steel Structures, Budapest, Hungary; 1990.
    [4] Mo Y-L, Jeng C-H, Chang Y. Torsional behavior of prestressed concrete box-girder bridges with corrugated steel webs[J]. Structural Journal. 2000,97(6):849-59.
    [5]聂建国,唐亮.波形钢腹板组合梁纯扭性能的非线性分析[J].中国公路学报.2007,20(5):71.
    [6]李宏江.波形钢腹板箱梁扭转与畸变的试验研究与分析[D].南京:东南大学,2003.
    [7]李宏江,叶见曙,万水.波形钢腹板箱梁横隔板间距的研究[J].公路交通科技.2004,21(10):51.
    [8]杨丙文,黎雅乐,万水,张建东.波形钢腹板箱梁的扭转应力分析[J].华南理工大学学报:自然科学版.2012,40(2):19-22.
    [9]杨丙文,黎雅乐,万水,张建东.波形钢腹板箱梁的畸变应力分析[J].东南大学学报:自然科学版.2011,41(5):1065.
    [10] Zhang B, Chen W, Xu J. Mechanical Behavior of Prefabricated Composite Box Girders with Corrugated Steel Webs under Static Loads[J]. Journal of Bridge Engineering. 2018,23(10):04018077.
    [11] Zhang B,Chen W,Xu J. Shear behaviour of girders with trapezoidal corrugated steel webs-an experimental study[J]. Stahlbau. 2018,87(8):810.
    [12]李佳,杨清梅.装配式波纹钢腹板组合箱梁足尺疲劳模型试验研究[J].安徽建筑.2016,23(2):86.
    [13]李佳.装配式波纹钢腹板组合箱梁疲劳评估[D].上海:同济大学,2016.
    [14]项海帆.高等桥梁结构理论[M].北京:人民交通出版社,2001.