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本文根据相关模型的风振实验,结合理论分析,研究了斜拉桥缆索的涡激振动问题,在亚临界雷诺数范围内,对单索涡激振动尾流区内的速度场和压力场进行了实测和拍照,测定了单索涡激振动的临界风速和沿跨距方向的相关系数。本文是以上海泖港斜拉桥为工程背景,并将实验数据和该桥设计参数进行了对比,取得了良好的吻合。
In this paper, based on the wind-induced vibration model of the relevant model and the theoretical analysis, the problem of vortex-induced vibration of the cables of cable-stayed bridge is studied. The velocity field and pressure field within the single wake vortex wake wake region Measured and photographed, the critical wind speed and the correlation coefficient along the span of single-scroll vortex-induced vibration were measured. This article is based on the project of Shanghai Huanggang Cable-stayed Bridge, and compares the experimental data with the design parameters of the bridge. The results are in good agreement.