窄悬索桥颤振失稳控制措施效果研究

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (23) : 77-81.

论文

窄悬索桥颤振失稳控制措施效果研究

李加武车鑫高斐马林林

作者信息 +

Study on the effect of flutter instability wind resistant methods for narrow suspension bridge

Li Jia-wu, Che Xin, Gao Fei, Ma Linlin

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摘要

近年来，随着我国基础设施的进一步完善，以跨越能力著称的悬索桥被广泛应用于各地桥梁结构的建设中，同时涌现出大量的窄悬索桥。然而，悬索桥的风致振动问题是影响其适用性的重要因素，窄悬索桥所遇到的风致振动问题更为复杂。能减小结构风致振动的措施很多，不同的措施对结构振动的影响效果亦不同。结合在设计风速下抗风能力不满足要求的窄悬索结构，提出提高结构抗风能力的措施，并对各种措施的作用效果进行对比分析，得出较为合理的抗风措施组合以使结构的抗风能力满足要求。

Abstract

As the infrastructure construction further perfected in recent years, suspension bridge, famous for its strong spanning ability, has widely used in the construction of bridge all over the country, narrow suspension bridges have emerged in large numbers. However, the wind-induced vibration is an important factor influence the applicability of suspension bridge, which is more complex for narrow suspension bridges. Many wind resistant methods can be used to decrease wind-induced vibration, different method has different effect. Combined with two narrow suspension bridges, whose anti-wind ability did not meet the condition, suggests some wind resistant methods to increase their anti-wind ability, contrastive analysis the effect of them in order to obtain the reasonable combination of wind resistant methods for the bridge.

导出引用

李加武车鑫高斐马林林 . 窄悬索桥颤振失稳控制措施效果研究[J]. 振动与冲击, 2012, 31(23): 77-81

Li Jia-wu;Che Xin;Gao Fei;Ma Linlin. Study on the effect of flutter instability wind resistant methods for narrow suspension bridge[J]. Journal of Vibration and Shock, 2012, 31(23): 77-81