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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
	李运生 ; 王宝强 ; 王元清 ; Li Yunsheng ; Wang Baoqiang ; Wang Yuanqing
	2010-05-13 ; 2010-05-13
关键词	组合箱梁桥 正弯矩区 异型岔口 应力分析 变形分析 composite box beam positive bending region special shape intersection stress analysis deformation analysis U448.213
其他题名	Loading Capacity Analysis of Composite Box Beam's Special Shape Intersection in Positive Bending Region
中文摘要	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。; 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 deformation behavior of the composite beam under different combined actions of loads,the loading of the special shape intersection under the interaction of vertical bending and torsion and the bearing reaction under live load.Finally,through the parametric analysis about the thickness of the steel girder web,the ratio of bending and torsion stiffness,and the diaphragm,the influence of the parameters on the special girder is understood clearly.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/32491]
专题	清华大学
推荐引用方式 GB/T 7714	李运生,王宝强,王元清,等. 钢-混凝土组合箱梁桥异型岔口正弯矩区受力性能分析[J],2010, 2010.
APA	李运生,王宝强,王元清,Li Yunsheng,Wang Baoqiang,&Wang Yuanqing.(2010).钢-混凝土组合箱梁桥异型岔口正弯矩区受力性能分析..
MLA	李运生,et al."钢-混凝土组合箱梁桥异型岔口正弯矩区受力性能分析".(2010).

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