【摘 要】
:
以宁波某跨海大桥为原型,结合桥梁激励系统、传感器、数据采集处理系统和拉索-阻尼减振系统,搭建斜拉桥振动试验平台,并模拟不同车辆载荷及行驶速度工况下的拉索振动响应试验;同时,分别利用液压阻尼器和橡胶阻尼器对斜拉索振动的抑制效果进行分析.结果表明,斜拉索振动幅度随车辆行驶速度、载重的增加而变大;橡胶阻尼器对长拉索减振效果明显好于液压阻尼器,而对中、短斜拉索减振效果的差异性不明显.试验结果可为斜拉索振动特性研究和阻尼器的工程应用提供参考.
【机 构】
:
宁波大学 海运学院,浙江 宁波 315832
论文部分内容阅读
以宁波某跨海大桥为原型,结合桥梁激励系统、传感器、数据采集处理系统和拉索-阻尼减振系统,搭建斜拉桥振动试验平台,并模拟不同车辆载荷及行驶速度工况下的拉索振动响应试验;同时,分别利用液压阻尼器和橡胶阻尼器对斜拉索振动的抑制效果进行分析.结果表明,斜拉索振动幅度随车辆行驶速度、载重的增加而变大;橡胶阻尼器对长拉索减振效果明显好于液压阻尼器,而对中、短斜拉索减振效果的差异性不明显.试验结果可为斜拉索振动特性研究和阻尼器的工程应用提供参考.
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