| 斜拉桥气弹模型拉索振动数字摄影测量技术 |
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| 引用本文： | 陈艾荣,涂熙,马如进.斜拉桥气弹模型拉索振动数字摄影测量技术[J].同济大学学报(自然科学版),2011,39(10):1447-1451. |
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| 作者姓名： | 陈艾荣 涂熙 马如进 |
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| 作者单位： | 同济大学桥梁工程系,上海,200092 |
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| 基金项目： | 国家自然科学基金资助项目编号50708073；国家科技支撑计划项目资助编号2009BAG15B01 |
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| 摘 要： | 利用数字摄影测量的方法,在斜拉桥全桥气弹模型风洞试验中对拉索结构实现振动位移的动态测量.介绍了该方法的基本原理,并通过某斜拉桥进行了实测研究,获得了该桥气动失稳状态时的拉索振动形态,为桥梁颤振发散机理的研究提供了直接依据.讨论了拉索位移测量方法的误差,并提出改进测量精度的对策.
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| 关 键 词： | 气弹模型试验 拉索 振动响应测量 图像识别 |
| 收稿时间： | 2010/6/23 0:00:00 |
| 修稿时间： | 7/5/2011 10:51:36 PM |
Vibration Measurement Technique for Cables of Full Aeroelastic Model for Cable Stayed Bridge Based on Digital Photogrammetry |
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| CHEN Airong,TU Xi and MA Rujin.Vibration Measurement Technique for Cables of Full Aeroelastic Model for Cable Stayed Bridge Based on Digital Photogrammetry[J].Journal of Tongji University(Natural Science),2011,39(10):1447-1451. |
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| Authors: | CHEN Airong TU Xi and MA Rujin |
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| Institution: | Department of Bridge Engineering,Tongji University,Shanghai 200092,China;Department of Bridge Engineering,Tongji University,Shanghai 200092,China;Department of Bridge Engineering,Tongji University,Shanghai 200092,China |
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| Abstract: | This paper presents the application of digital photogrammetry in obtaining the vibration response of cables for full aeroelastic cable-stayed bridge model in wind tunnel test.In the wind tunnel test,aeroelastic model for a cable stayed bridge with the span of 1 088 m was adopted and the vibration modes for cables during aerodynamic instable status were acquired by image capture and analysis,which clearly revealed the relationship between cable and girder of cable stayed bridge and provided essential data fo... |
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| Keywords: | full aeroelastic model test stay cable vibration measurement image recognition |
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