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Dynamic study of the Vasco da Gama Bridge

机译:Vasco da Gama Bridge的动态研究

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The Vasco da Gama Bridge in Lisbon is probably the most spectacular Expo '98 structure. The total length is about 12 km, which includes a cable-stayed component with a main span of 420 m. An analytical and experimental dynamic study has been carried out to assess the aerodynamic and seismic behaviour of the bridge. This paper concentrates on the identification of the modal parameters from free and ambient vibration data. The results from the peak-picking method, which is traditionally used in civil engineering, are compared with results from the modern stochastic subspace identification method.
机译:里斯本的Vasco da Gama Bridge可能是最壮观的世博会98结构。总长度约为12公里,其中包括电缆停留的部件,主跨度为420米。已经进行了分析和实验动态研究以评估桥梁的空气动力学和地震行为。本文专注于从自由和环境振动数据识别模态参数。与现代随机子空间识别方法的结果相比,传统上用于土木工程的峰值拣选方法的结果。

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