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将随机桥面平整度描述为零均值的平稳高斯随机过程,建立了大跨度斜拉桥空间有限元模型,考虑结构的初始应力效应和几何非线性因素,提出了一种斜拉桥车桥振动分析的简化方法。结合工程实例分析了桥面平整度对斜拉桥车辆振动的影响,为大跨斜拉桥的科学管理和维护提供参考。
A stochastic Gaussian random process describing random flatness as a zero mean is established. The space finite element model of long-span cable-stayed bridge is established. Considering the initial stress effect and geometric nonlinearity of the structure, a cable-stayed bridge vibration Simplified method of analysis. The influence of the bridge deck flatness on the vehicle vibration of the cable-stayed bridge is analyzed with engineering examples, which provides reference for the scientific management and maintenance of the long-span cable-stayed bridge.