| 稳定型悬索桥与普通悬索桥固有振动对比研究 |
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| 引用本文： | 屈本宁,何天淳.稳定型悬索桥与普通悬索桥固有振动对比研究[J].空间结构,1999,5(4):39-46,14. |
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| 作者姓名： | 屈本宁 何天淳 |
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| 作者单位： | 昆明理工大学建工及力学系!云南昆明650093 |
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| 基金项目： | 云南省应用基础研究基金!(98A038A) |
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| 摘 要： | 用含索组合有限元模型模拟稳定型悬索桥和普通悬索桥，考虑结构几何非线性特征，导出了系统广义特征方程，计算了两桥型前十阶特征对，对比分析了稳定型悬索桥及普通悬索桥垂直—扭转耦合固有振动。结果表明．稳定型悬索桥具有良好时自振特性。
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| 关 键 词： | 稳定型悬索桥 普通悬索桥 固有振动 自振特性 系统广义特征方程 |
THE COMPARISON RESEARCH OF NATURAL PROPERTIES BETWEEN THE STABLE TYPE SUSPENSION BRIDGE AND COMMON SUSPENSION BRIDGE |
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| QU Ben ning,HE Tian chun.THE COMPARISON RESEARCH OF NATURAL PROPERTIES BETWEEN THE STABLE TYPE SUSPENSION BRIDGE AND COMMON SUSPENSION BRIDGE[J].Spatial Structures,1999,5(4):39-46,14. |
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| Authors: | QU Ben ning HE Tian chun |
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| Abstract: | In the paper, the stable type suspension bridge and common suspension bridge are simulated by assemble space finite element model contained cables. The geometry nonlinear properties of structures are considered and generalized eigenvalue equation of the system is driven. First ten order eigenpairs are given. Coupled natural vibration of vertical direction and torsion about two kinds of bridges is analyzed. The results show that the stable type suspension bridge has better natural property than common suspension bridge. |
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| Keywords: | stable type suspension bridge assemble space finite element model geometry nonlinear coupled natural vibration between vertical direction and torsion |
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