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润扬斜拉桥有限元模型的建立和模态分析 被引量:1

Finite Element Modeling and Modal Analysing of Runyang Cable-Stayed Bridge
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摘要 讨论了润扬北汊斜拉桥以健康监测和损伤评估为目标的空间有限元模型的建立.在建模过程中,尽可能多的考虑一些影响有限元模型精度的因素,如斜拉索几何非线性(重力垂度和初始应力)的影响,将构造正交各向异性钢箱梁桥面板用复合材料力学的方法等效为物理正交各向异性板等.并用此有限元模型进行了模态分析,讨论了边界条件、边跨压重等因素对斜拉桥动力特性的影响.将有限元模态计算结果与环境振动试验结果进行比较,验证了润扬斜拉桥有限元模型的有效性.因此,建立的有限元模型可以为润扬斜拉桥的结构健康监测和安全评估提供计算和分析的基础.
出处 《市政技术》 2005年第z1期73-80,138,共9页 Journal of Municipal Technology
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参考文献8

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共引文献180

同被引文献2

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