| 中、下承式拱桥吊索张力测定的振动法实用公式 |
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| 引用本文： | 陈淮,董建华.中、下承式拱桥吊索张力测定的振动法实用公式[J].中国公路学报,2007,20(3):66-70. |
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| 作者姓名： | 陈淮 董建华 |
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| 作者单位： | 1. 郑州大学,土木工程学院,河南,郑州,450002
2. 上海神火铝箔有限公司,上海,201319 |
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| 摘 要： | 考虑吊索弯曲刚度和两端固定边界条件的影响，引入参数简化吊索张力与其横向振动频率之间关系的超越方程，采用数值计算和曲线拟合的方法，推导出了考虑吊索弯曲刚度和吊索两端边界条件影响的，由吊索振动频率计算吊索张力的实用计算公式，并将该公式运用于下承式拱桥施工现场吊索张力的测定。通过与现场实测数据的比较表明：该公式具有较高的精度和一定的实用价值。
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| 关 键 词： | 桥梁工程 中、下承式拱桥 振动法 吊索张力 |
| 文章编号： | 1001-7372（2007）03-0066-05 |
| 收稿时间： | 2006-06-07 |
| 修稿时间： | 2006年6月7日 |
Practical Formulae of Vibration Method for Suspender Tension Measure on Half-through and Through Arch Bridge |
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| CHEN Huai,DONG Jian-hua.Practical Formulae of Vibration Method for Suspender Tension Measure on Half-through and Through Arch Bridge[J].China Journal of Highway and Transport,2007,20(3):66-70. |
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| Authors: | CHEN Huai DONG Jian-hua |
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| Institution: | 1. School of Civil Engineering, Zhengzhou University, Zhengzhou 450002, Henan, China; 2. Shanghai Shenhuo Aluminium Foil Ltd, Shanghai 201319, China |
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| Abstract: | The influences of the flexural stiffness and fixed boundary conditions of the two built-in ends of suspenders were both considered. The transcendental equation reflecting the relationship between the suspender tension and its transverse vibration frequency was simplified through introducing parameters, and then the means of numerical calculation and curve fitting were adopted to get the practical calculating formulae of the suspender tension calculated with transverse vibration frequency considering influences of bending rigidity and two built-in ends of suspenders. Compared with measured data in field, the practical calculating formulae of suspender tension measurement have high precision of calculation through the practical verification of construction job site of a through arch bridge and practical value. |
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| Keywords: | bridge engineering half-through and through arch bridge vibration method suspender tension |
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