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钢-混凝土组合箱梁桥异型岔口正弯矩区受力性能分析
引用本文:李运生,王宝强,王元清.钢-混凝土组合箱梁桥异型岔口正弯矩区受力性能分析[J].石家庄铁道学院学报,2008,21(4):20-24.
作者姓名:李运生  王宝强  王元清
作者单位:[1]石家庄铁道学院土木工程分院,河北石家庄050043 [2]清华大学土木工程系,北京100084
摘    要:为了研究异型梁的受力和承载性能,通过有限元程序ANSYS建立板壳单元三维空间模型,对北京南站高架桥某联正弯矩区组合箱梁异型岔口进行分析,重点分析岔口处钢箱-混凝土结合梁受力性能,即钢箱梁在各种荷载工况下的应力和变形特征,弯扭耦合作用下异形岔口的受力,活载偏载作用下支座反力。最后对钢梁腹板厚度、弯扭刚度比及横隔板进行了参数分析,明确了其对异形梁受力性能的影响。

关 键 词:组合箱梁桥  正弯矩区  异型岔口  应力分析  变形分析

Loading Capacity Analysis of Composite Box Beam's Special Shape Intersection in Positive Bending Region
Li Yunsheng,Wang Baoqiang,Wang Yuanqing.Loading Capacity Analysis of Composite Box Beam''s Special Shape Intersection in Positive Bending Region[J].Journal of Shijiazhuang Railway Institute,2008,21(4):20-24.
Authors:Li Yunsheng    Wang Baoqiang  Wang Yuanqing
Institution:Li Yunsheng1,2,Wang Baoqiang1,Wang Yuanqing2(1.School of Civil Engineering,Shijiazhuang Railway institute,Shijiazhuang 050043,China,2.Department of Civil Engineering,Tsinghua University,Beijing 100084,China)
Abstract:In order to study the mechanical behavior and the loading capacity of the special structure under different combined actions of load,in this paper,the three-dimensional plate-shell element model is constructed through the finite element procedure ANSYS,analysing one segment of composite box beam's special shape intersection of Beiijing South Station Viaduct in positive bending region.The mechanical behavior of the steel box-concrete composite beam at intersection is mainly analysed,such as the stress and de...
Keywords:composite box beam  positive bending region  special shape intersection  stress analysis  deformation analysis  
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