| 下承式钢坦拱桥索力测试与分析 |
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| 引用本文： | 李宏祥,杨亮,黄思勇.下承式钢坦拱桥索力测试与分析[J].城市道桥与防洪,2009(4). |
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| 作者姓名： | 李宏祥 杨亮 黄思勇 |
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| 作者单位： | 天津市市政工程设计研究院,天津市,300051 |
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| 摘 要： | 天津市友谊路立交主桥是一座下承式无风撑坦拱钢拱桥,该文采用频率测定法对该桥成桥恒载下的吊杆索力进行测定,并运用索力分析理论和有限元法计算吊杆索力,通过比较分析,结果表明该桥的吊杆索力满足设计要求。在建模分析及吊杆索力计算时就如何考虑锚固形式、计算长度和刚度的影响进行了介绍,具有一定的借鉴意义。
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| 关 键 词： | 下承式无风撑坦拱钢拱桥 吊杆 索力 频率法 测试 |
Test and Analysis of Cable Force for Through Steel Flat Arch Bridge |
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| Li Hongxiang,Yang Liang,Huang Siyong.Test and Analysis of Cable Force for Through Steel Flat Arch Bridge[J].Urban Roads Bridges & Flood Control,2009(4). |
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| Authors: | Li Hongxiang Yang Liang Huang Siyong |
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| Abstract: | The main bridge of Youyi Road Interchange in Tianjin City is a through no-supporting steel flat arch bridge.The article uses the frequency measuring method to measure the cable force of hanger rod under the constant load of this completed bridge,and applies the cable force analysis theory and the finite element method to calculate the cable force of hanger rod.After the comparison and analysis,the result makes clear that the cable force of hanger rod of this bridge meets the design requirement.The article introduces how to consider the anchorage type,calculation length and rigidity influence when the analysis of the model building and the calculation of the cable force of hanger rod,which has some reference. |
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| Keywords: | through no-supporting steel flat arch bridge hanger rod cable force frequency method test |
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