| 陈阳,胡成.大跨度系杆拱桥吊杆索力测试研究[J].安徽建筑大学学报,2017,25(6):24-29 |
| 大跨度系杆拱桥吊杆索力测试研究 |
| Study on Suspender Force Testing of Large-span Tied Arch Bridges |
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| DOI：10.11921/j.issn.2095-8382.20170605 |
| 中文关键词: 系杆拱桥； 索力测试 弦振动理论；牛顿迭代法；参数识别 |
| 英文关键词: tied arch bridge cable force test string vibration theory Newton iterative method parameter
identification |
| 基金项目: |
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| 中文摘要: |
| 文章以弦振动理论为基础，推导了系杆拱桥索力测试的实用计算公式，分析了影响测试精度的若
干参数，并对吊杆的边界条件、有效计算长度以及抗弯刚度等影响因素进行了分析和修正。采用牛顿切线
法迭代得出有效计算长度，该方法为同类型桥梁的索力测试提供了良好的参考价值。通过分析大量数据，
实用计算公式得出的索力值和模型理论值很接近，完全能够满足工程实践的要求。 |
| 英文摘要: |
| This paper is based on string vibration theory, derives a practical calculation formula for cable
force test of tied arch bridge , analyzes some parameters that affect the testing accuracy, and the boundary
conditions, effective length, bending stiffness and other factors were analyzed and modified.The effective
calculation length is obtained by the Newton tangent method, which provides a good reference value for the
cable force test of the same type of bridge. By analyzing a large amount of data, the practical calculation
formula is close to the theoretical value of the cable, and the practical calculation formula can meet the
requirements of engineering pract ice. |
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