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预应力T梁桥跨中横隔梁力学分析与维修加固
引用本文:余波,徐光华.预应力T梁桥跨中横隔梁力学分析与维修加固[J].现代交通技术,2007,4(5):53-55.
作者姓名:余波  徐光华
作者单位:1. 贵州省高速公路发展总公司,贵州,贵阳,550004
2. 南京市溧水县建设局,江苏,南京,211200
摘    要:以预应力简支T梁桥为对象,建立了实体单元有限元模型,在对称和偏载作用下分别计算了有无横梁情况时的响应并进行了比较分析,结果说明中横梁对大桥受力状态特别是翼缘板的受力状态有较大的作用。根据这一结论,对该桥主要采取了增加跨中横隔梁的加固措施。

关 键 词:T梁桥  中横梁  剪应力  挠度  横向拉应力  加固
文章编号:1672-9889(2007)05-0053-03
修稿时间:2007-06-20

Mechanical Performance Analysis and Strengthening of the Diaphragm in Prestressed Concrete T-girder Bridge
Yu Bo,Xu Guanghua.Mechanical Performance Analysis and Strengthening of the Diaphragm in Prestressed Concrete T-girder Bridge[J].Modern Transportation Technology,2007,4(5):53-55.
Authors:Yu Bo  Xu Guanghua
Affiliation:1.Guizhou Expressway Development Corporation, Guiyang 550004, China; 2.Nanjing Lisui Construct Bureau, Nanjing 211200, China
Abstract:Based on T-girder bridge,the space solid FEA model is established in an aim to calculate and compare the response of the structure in asymmetrical loading and symmetry loading with the diaphragm or without the diaphragm.It shows that the diaphragm improve the bridge mechanical performance,especially for the wing plane.With the conclusion, diaphragms were added as one of the strengthening measures.
Keywords:T-girder bridge  diaphragm  shear stress  deformation  horizontal tensile stress  strengthening
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