| 梁拱组合体系桥柔性吊杆索力测试 |
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| 引用本文： | 朱卫国,申永刚,项贻强,张亚飞.梁拱组合体系桥柔性吊杆索力测试[J].中南公路工程,2004,29(1):21-23,36. |
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| 作者姓名： | 朱卫国 申永刚 项贻强 张亚飞 |
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| 作者单位： | [1]浙江大学土木工程系，浙江杭州310027 [2]大连理工大学土木工程系，辽宁大连116023 |
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| 摘 要： | 对影响频率法测定梁拱组合体系桥梁柔性吊杆索力精度的几个因素，如索的边界条件、刚度及有效计算长度等进行了分析。结果表明，只要吊杆拉索的有效计算长度被合理地确定，则根据所测频率基于弦振动理论在考虑抗弯刚度影响下，所得到吊杆索力在一般情况下均具有相当精度，可以满足运营期间监测吊杆索力的需要。
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| 关 键 词： | 梁拱组合体系桥梁 柔性吊杆 索力 测定 边界条件 频率法 刚度 |
| 文章编号： | 1002-1205(2004)01-0021-03 |
Test on Forces in Flexible Hanger Rods in Combinatorial Bridges with Beams and Arches |
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| ZHU Wei-guo,SHEN Yong-gang,XIANG Yi-qiang,ZHANG Ya-fei.Test on Forces in Flexible Hanger Rods in Combinatorial Bridges with Beams and Arches[J].Central South Highway Engineering,2004,29(1):21-23,36. |
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| Authors: | ZHU Wei-guo SHEN Yong-gang XIANG Yi-qiang ZHANG Ya-fei |
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| Institution: | ZHU Wei-guo~1,SHEN Yong-gang~1,XIANG Yi-qiang~1,ZHANG Ya-fei~2 |
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| Abstract: | Factors such as rigidity, boundary conditions, and effective calculating length of hanger rods, which influence the test precision of forces in hanger rods in combinatorial bridges with beams and arches using frequency method, are analyzed in this paper. Results of the analysis indicate that the precision with the method, based on principles of vibration of chord taking account of rigidity, can meet the needs of monitoring forces in hanger rods during operation of the bridge. |
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| Keywords: | combinatorial bridge with beam and arch hanger rods frequency method test of rod force effective calculating length |
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