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斜拉桥索面布置的薄膜应力优化法

An optimizing method for the cable arrangement of cable-stayed bridges with membrane stress analysis
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摘要 将斜拉桥的索面比拟为连续的膜结构,通过有限元方法对薄膜的应力进行分析,以主拉应力的方向指示拉索的布置方向。以一座斜拉桥为算例,计算了索面布置优化前后的拉索用钢量、主梁挠度及塔顶位移等。 A membrane is used to simulate the cables,and its stress distribution is obtained by FEM.The directions of the maximum principle stresses indicate the form of cable arrangement.A concrete cable-stayed bridge with single pylon is considered as an example. Some mechanical indexes(such as the weight of cables and the deformations of girder and tower) of the initial bridge and the optimized bridge are separately calculated.
作者 夏睿杰 贾丽君 李扬
机构地区 同济大学桥梁工程系
出处 《上海公路》 2009年第3期37-40,共4页 Shanghai Highways
关键词 斜拉桥 索面布置 薄膜 有限元 cable-stayed bridge cable arrangement membrane finite element
分类号 U448.27 [建筑科学—桥梁与隧道工程] TH49 [机械工程—机械制造及自动化]
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参考文献4

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二级参考文献13

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共引文献10

上海公路
2009年 第3期

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