| 模拟降雨条件下斜拉桥拉索风雨激振及控制的试验研究 |
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| 引用本文： | 顾明,杜晓庆. 模拟降雨条件下斜拉桥拉索风雨激振及控制的试验研究[J]. 土木工程学报, 2004, 37(7): 101-105 |
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| 作者姓名： | 顾明 杜晓庆 |
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| 作者单位： | 同济大学(顾明)，同济大学(杜晓庆) |
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| 基金项目： | 国家杰出青年科学基金，国家自然科学基金项目 (50 1 780 4 9，50 32 1 0 0 3)，教育部“高等校骨干教师资助计划”联合资助 |
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| 摘 要： | 斜拉桥拉索风雨激振是当前桥梁工程界和风工程研究中的国际热点和难点问题。本文在同济大学TJ -1大气边界层风洞的出口射流段中成功再现了模拟降雨状态下拉索的风雨激振现象 ,研究了几种主要参数对拉索风雨激振振动特性的影响 ,还进行了在拉索表面缠绕螺旋线来破坏水线形成从而控制拉索风雨激振的研究 ,为深入研究斜拉桥拉索风雨激振机理和风雨激振的控制提供了有益的资料
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| 关 键 词： | 斜拉桥 拉索 风雨激振 风洞试验 振动控制 |
| 文章编号： | 1000-131X(2004)07-0101-05 |
| 修稿时间： | 2002-11-15 |
A TESTING STUDY ON RAIN- WIND INDUCED CABLE VIBRATION AND ITS CONTROL OF CABLE- STAYED BRIDGES UNDER SIMULATED RAIN |
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| Gu Ming Du Xiaoqing. A TESTING STUDY ON RAIN- WIND INDUCED CABLE VIBRATION AND ITS CONTROL OF CABLE- STAYED BRIDGES UNDER SIMULATED RAIN[J]. China Civil Engineering Journal, 2004, 37(7): 101-105 |
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| Authors: | Gu Ming Du Xiaoqing |
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| Abstract: | Rain-wind induced vibration of cables of cable-stayed bridges is presently a worldwide problem of great concern.The phenomenon of rain-wind induced vibration of a cable model is successfully re-produced under simulated raining condition in TJ-1 Boundary Layer Wind Tunnel in Tongji University. The effects of several main factors on the characteristics of rain-wind vibration and spiraled wires countermeasure for mitigation of the vibration are then experimentally investigated in detail. The test results may be employed as valuable references for further studies on the mechanisms of rain-wind induced cable vibrations and practical their applications for cable-stayed bridges. |
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| Keywords: | cable-stayed bridge cable rain-wind induced vibration wind tunnel test vibration control |
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