大尺度结构波浪力计算研究

摘要

文章以线性波浪绕射理论为基础,依据边界元法,建立计算大尺度结构所受波浪力的三维数学模型.为验证模型的准确性,分别将该模型与经典圆形墩波浪力的解析值以及平潭海峡公铁大桥围堰波浪力的实测值进行对比,结果均表明该模型具有较高的精度.其中与实测值的对比在国内外同类研究中极少见到.最后将该模型应用于平潭海峡公铁大桥Z03#基础承台波浪力计算,取得了较为满意的结果.%Based on the linear wave diffraction theory and the boundary element method,the three-dimensional mathematical model was established to calculate the wave forces acting on the large scale structure.In order to verify the accuracy of the models, the simulating value was compared with the classical analytical value of wave forces acting on the circular mound and the measured value of cofferdam wave force for Pingtan Strait Dual-purpose Bridge. The results show that the numerical model has higher precision.The contrast with the actually measured value has been rarely seen in similar studies at home and abroad.Finally, the model was applied to the calculation of wave force for Z03#foundation pile caps of Pingtan Strait Dual-purpose Bridge,and the satisfactory results were obtained.