| 吊杆索力的计算方法与应用研究 |
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| 引用本文： | 凌知民,杨沈红,沈炯伟.吊杆索力的计算方法与应用研究[J].石家庄铁道学院学报,2011(3):16-19. |
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| 作者姓名： | 凌知民 杨沈红 沈炯伟 |
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| 作者单位： | 同济大学桥梁工程系;上海市政工程设计研究总院(集团)有限公司; |
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| 摘 要： | 由于吊杆长度刚度、边界条件等因素对结构的影响程度不同,可得到频率法测吊杆力在不同假设下的四种计算模型。结合某140 m提篮式系杆拱桥,对四种模型进行了计算分析,与实测的数据进行对比,结果表明,在测试吊杆力时,系杆拱桥特别是短索的测试中必须考虑刚度以及边界条件的影响。
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| 关 键 词： | 系杆拱桥 频率法 吊杆力 |
Computing Method and Analytic Study of Suspender Forces |
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| Ling Zhimin,Yang Shenhong,Shen Jiongwei Co.,Ltd,China.Computing Method and Analytic Study of Suspender Forces[J].Journal of Shijiazhuang Railway Institute,2011(3):16-19. |
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| Authors: | Ling Zhimin Yang Shenhong Shen Jiongwei Co Ltd China |
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| Institution: | Ling Zhimin1,Yang Shenhong1,Shen Jiongwei2(1.Department of Bridge Engineering,Tongji University,Shanghai 200092,China,2.Shanghai Municipal Engineering Design General Institute(Group) Co.,Ltd,China) |
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| Abstract: | According to the different influence of the stiffness and boundary conditions of the derrick,four models of different assumptions in measuring the suspender forces by the frequency method are given.The four modes are calculated and analyzed combed with an arch bridge.The conclusion points out that,in measuring the suspender force,the bowstring arch bridge,especially the short cable,must consider the influence of the stiffness and boundary conditions. |
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| Keywords: | bowstring arch bridge frequency method the suspender force |
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