| 绵江大桥动载试验研究 |
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| 引用本文： | 田景凤.绵江大桥动载试验研究[J].国防交通工程与技术,2010,8(2):41-44. |
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| 作者姓名： | 田景凤 |
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| 作者单位： | 中铁十八局集团有限公司,天津,300222 |
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| 摘 要： | 介绍了绵江系杆拱桥动力性能测试方法,首先通过跑车试验对绵江大桥进行了频谱曲线和动位移测试,通过人工激振的方法测试了大桥的自振频率和受迫振动参数。通过动载试验及其数据的分析,对该系杆拱桥的动力工作性能给予客观的评估,这不仅对该桥且对同类型桥梁的结构评定也起到一定的借鉴作用。
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| 关 键 词： | 系杆拱桥 动载试验 结构评定 频谱 动位移测试 自振频率 |
A Dynamic Load Study of the Mianjiang Bridge |
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| Tian Jingfeng.A Dynamic Load Study of the Mianjiang Bridge[J].Traffic Engineering and Technology for National Defence,2010,8(2):41-44. |
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| Authors: | Tian Jingfeng |
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| Institution: | Tian Jingfeng (18th Bureau Group Ltd. of the Railway Building Corporation of China,Tianjin 050043, China) |
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| Abstract: | The Mianjiang Bridge is a tie arch bridge. In order to test the dynamic performance of the bridge,the frequency spectrum curve and the dynamic displacement tests are first made of it while there are trucks running on it, after which the frequency of natural vibration and forced vibration parameters are tested through the manual exciting method. By analyzing the dynamic test and its corresponding test data, the dynamic performance of the bridge is objectively evaluated. The test may serve as a useful reference for not only this bridge but also other similar types of bridges. |
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| Keywords: | tie arch bridge dynamic loading test structural assessment frequency spectrum dynamic displacement test frequency of natural vibration |
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