| 一种典型工程结构风致振动现场测量 |
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| 引用本文： | 余永生,毕卫涛,梁彬,朱凤荣.一种典型工程结构风致振动现场测量[J].实验流体力学,2006,20(4):73-76,93. |
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| 作者姓名： | 余永生 毕卫涛 梁彬 朱凤荣 |
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| 作者单位： | 北京大学湍流与复杂系统研究国家重点实验室,北京,100871 |
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| 摘 要： | 对一个建筑结构风致振动进行了现场测量研究。结构风振位移采用摄影法测量,由于观测目标不可触及,测量中采用了一种新的摄影定标方法,即利用正多边形物体来标定摄影比例尺,解决了难以接近的观测目标的动态位移测量问题。现场测量得到了某特定气象条件下当地大气湍流的平均风速、湍流度、风谱、积分尺度等统计量和结构风振最大位移,固有频率,阻尼比等振动参数。
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| 关 键 词： | 结构风振 摄影测量 现场测量 |
| 文章编号： | 1672-9897（2006）04-0073-05 |
| 收稿时间： | 2006-02-05 |
| 修稿时间： | 2006-02-052006-05-10 |
Field measurements of wind-induced vibration of a structure |
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| YU Yong-Sheng,BI Wei-Tao,LIANG Bin,ZHU Feng-Rong.Field measurements of wind-induced vibration of a structure[J].Experiments and Measur in Fluid Mechanics,2006,20(4):73-76,93. |
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| Authors: | YU Yong-Sheng BI Wei-Tao LIANG Bin ZHU Feng-Rong |
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| Institution: | State Key Laboratory of Turbulence and Complex Systems, Peking University, Beijing 100871, China |
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| Abstract: | Field measurements were conducted on the wind-induced vibration of a structure.Photogrammetry was adopted to measure the displacements of the structure.Especially,a new calibration method,which employed some equilateral-polygonal or circular objects,was proposed to avoid contacting the measuring target.The statistical parameters of the turbulence and the displacement amplitudes,the natural frequencies and the damping ratios of the structure were obtained. |
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| Keywords: | wind-induced vibration photogrammetry field measurement |
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