摘要
本文讨论了长大跨径桥梁在紊流风作用下的抖振控制方法——调质阻尼器(TMD:Tuned Mass Damper)。通过对上海杨浦大桥的成桥和最大单悬臂施工状态的全桥气动模型在风洞中所进行的带和不带TMD的对比试验结果分析,表明TMD技术对长大跨径桥梁的抖振控制是非常有效的。
This paper discusses the buffeting response control method-Tuned Mass Damper (TMD) for cable stayed bridges under turbulent wind. The full aeroelastic mode tests of Yangpu Bridge in Shanghai with and without TMD both during operation and construction have been done in a wind tunnel. The experimental results show that TMD devices are effec- tive for suppressing the wind-induced buffeting of Long-span bridges.
基金
国家自然科学基金
国家教委博士点基金
关键词
抖振
振动控制
调质阻尼器
斜拉桥
buffeting
vibration control
tuned mass damper (TMD)
cable-stayed bridge
