| 泸州泰安长江大桥静动载试验研究 |
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| 引用本文： | 姜军,田志勇,勾红叶.泸州泰安长江大桥静动载试验研究[J].路基工程,2010,0(5):94-96. |
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| 作者姓名： | 姜军 田志勇 勾红叶 |
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| 作者单位： | 西南交通大学土木工程学院610031 |
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| 摘 要： | 对主跨543m跨径的独塔双索面斜拉桥——泸州泰安长江大桥实施静力荷载试验,测试并分析静载工况下的主梁挠度、主塔塔顶变位、斜拉索索力增量、主梁与主塔的截面应力。结果表明,桥跨结构受力合理,具有良好的刚度与强度。在动载试验中,测试桥跨结构的自振特性,并进行了行车激振试验,分析桥跨结构在行车下的冲击作用,结果表明,动力特性良好。
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| 关 键 词： | 斜拉桥 静载试验 动载试验 自振特性 冲击作用 |
| 收稿时间： | 2019-11-06 |
On Static and Dynamic Load Test on Yangtze River Bridge in Taian Luzhou |
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| Authors: | JIANG Jun TIAN Zhi-yong GOU Hong-ye |
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| Affiliation: | (School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | Static load test is carried out on cable-stayed bridge with the main span of 543 m with single tower and double cable planes,i.e.Yangtze River Bridge in Taian Luzhou to test and analyze girder deflection,main tower top deflection,suspension cable tension increase,sectional stress between main girder and main tower under static load.It is shown that bridge span structure is under reasonable stress with good rigidity and strength.In dynamic load test,natural vibration characteristics of bridge span structure is tested and the vibration excited by traveling crane is also tested to analyze impact action of bridge span structure under traveling crane.It is shown that bridge span structure has good dynamic properties. |
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| Keywords: | cable-stayed bridge static load test dynamic load test natural vibration characteristics impact action |
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