噪声与振动控制2017，Vol.37Issue(5)：154-159,6.DOI:10.3969/j.issn.1006-1355.2017.05.032
基于频率法的悬索桥锚跨索股索力测试分析
Cable Force Test and Analysis of Anchor Span Stand for Suspension Bridges Based on Frequency Method
摘要
Abstract
In order to obtain cable force of anchor span stand for suspension bridges precisely so that the cable force can be controlled easily and accurately during construction, the cable force is tested by frequency method based on the construction characteristics of anchor span structure. Factors affecting frequency identification such as incentive mode, sensor placement and so on are analyzed. The variation law of the cable force for cable stand with different stress, frequency order and cable length is obtained. The results show that when using the frequency method for measurement, the artificial incentive should be a prior selection to the others. In order to identify the cable vibration frequency accurately, the sensor can be arranged at L/6 distance away from the cable end. The accuracy of the cable force calculation can be ensured by selecting the first-order natural frequency in the calculation. When the stress of the cable stand is close to its tensile limit, the material properties of the cable are fully utilized and the calculation error is small.关键词
振动与波/锚跨索股/频率法/激励方式/索力Key words
vibration and wave/anchor span strand/frequency method/excitative way/cable force分类
通用工业技术引用本文复制引用
薛刚,孙树宝,李建刚..基于频率法的悬索桥锚跨索股索力测试分析[J].噪声与振动控制,2017,37(5):154-159,6.基金项目
内蒙古自治区自然科学基金资助项目(2015MS0552) （2015MS0552）
