| 大跨度斜拉桥空间振动计算分析 |
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| 引用本文： | 郭文华.大跨度斜拉桥空间振动计算分析[J].振动与冲击,1998,17(1):30-33. |
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| 作者姓名： | 郭文华 |
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| 作者单位： | 长沙铁道学院土木系
(郭文华，郭向荣)，长沙铁道学院土木系(曾庆元) |
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| 摘 要： | 本文提出了一种分析列车、大跨度钢桁梁斜拉桥系统空间振动的方法.文中采用21个自由度的列车空间振动模型,对斜拉桥桁架、桥塔、拉索分别采用桁段有限单元、空间梁元、空间杆元来模拟,计算了列车以不同车速通过大跨度斜拉桥的空间振动响应,所得结果可供设计参考.
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| 关 键 词： | 有限元 斜拉桥 振动 响应 |
CALCULATION AND ANALYSIS OF SPATIAL VIBRATION FOR LONG SPAN CABLE-STAYED BRIDGES |
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| Guo Wenhua Guo Xiangrong Zeng Qingyuan.CALCULATION AND ANALYSIS OF SPATIAL VIBRATION FOR LONG SPAN CABLE-STAYED BRIDGES[J].Journal of Vibration and Shock,1998,17(1):30-33. |
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| Authors: | Guo Wenhua Guo Xiangrong Zeng Qingyuan |
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| Abstract: | In the paper, a method for spatial vibration analysis of the system of train and long span steel trussed cable-stayed bridge is presented. A train model with 21 degrees of freedom is adopted and a finite element model of cable stayed bridge is developed using truss elements to model the truss bridge deck, space beam elements to model the brideg tower, and spatial truss elements to model the cables. The spatial vibration responses are calculated when the train runs through the long span cable-stayed bridge with variable speeds. The results provide reference for design. |
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| Keywords: | finite element method cable-stayed vibration response |
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