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在对虎门大桥辅航道桥悬臂施工阶段风致抖振情况进行理论分析和风洞试验的基础上 ,介绍悬臂施工阶段结构风致抖振控制的原理和方法。并通过对悬臂施工阶段减振效果和火箭激励现场实测 ,验证了虎门大桥辅航道桥施工阶段风致抖振控制方法的有效性和可靠性。
Based on the theoretical analysis and wind tunnel test of wind-induced buffeting during the cantilever construction stage of the Huai-Da Bridge auxiliary channel bridge, the principle and method of wind-induced buffeting control in cantilever construction stage are introduced. Through the vibration effect of cantilever construction stage and field test of rocket excitation, the effectiveness and reliability of the wind-induced vibration control method in Humen Bridge auxiliary channel bridge construction stage are verified.