| 斜拉索内力测试及影响因素分析 |
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| 引用本文： | 梅逸飞,何富强,吴惠君,陈绍文,詹郧武.斜拉索内力测试及影响因素分析[J].武汉水运工程学院学报,2012(5):1079-1082,1087. |
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| 作者姓名： | 梅逸飞 何富强 吴惠君 陈绍文 詹郧武 |
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| 作者单位： | [1]武汉理工大学交通学院,武汉430063 [2]十堰市公路管理局,十堰442000 [3]湖北路桥集团有限公司,武汉430044 [4]中交二公局第五工程有限公司,西安710000 [5]郧县公路管理局,十堰442500 |
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| 摘 要： | 运用弦振动理论建立了斜拉索内力的计算公式,并分析了边界约束、抗弯刚度及垂度对索力测试精度的影响.结果表明：这些因素的影响与索的长短有关,特别对短索的影响较大,有时会使索力测试值不可接受.因此针对各影响因素提出了实际解决办法.同时以郧阳汉江公路大桥为研究对象,对实测索力与设计索力进行比较分析.
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| 关 键 词： | 弦振动 索力 抗弯刚度 |
Analysis of Cable Tension Test： of Cable＇stayed Bridges and Influential Factors |
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| Authors: | MEI Yifei HE Fuqiang WU Huijun CHEN Shaowen ZHAN Yunwu |
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| Institution: | (School of Transportation, Wuhan University of Technology, Wuhan 430063, China) (Shiyan Highway Administration, Shiyan 442000, China) (Hubei Provincial Road ＆ Bridge Co., Ltd, Wuhan 430044, China) (CCCC Second Highway Fifth Engineering Co. ,Ltd, Xi＇an 710000, China) (Yunxian Highway Administration, Shiyan 442500, China) |
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| Abstract: | Through establishing the calculation formula of cable force with string vibration theory, this paper analyzes the influences of the boundary conditions, bending stiffness and sagging on cable ten- sion testing accuracy. The results show that the influences of these factors relate to cable length, es- pecially to short cable, and sometimes make the test value unacceptable. Therefore, it provides practi- cal solutions to each factor. According to the study on Yunyang Han River Highway Bridge, the com- parison results of measured value and design value about cable forces are of certain guidance to cable tension test of cable-stayed bridges. |
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| Keywords: | string vibration cable force bending stiffness |
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