The wave action on a box girder-type bridge deck is experimentally investigated in this study. Two types of incident waves, namely, regular waves (RWs) and focused waves (FWs), are tested. Fourier, wavelet, and Hilbert spectra of the vertical wave forces are obtained and analyzed. Four different methods are then applied to obtain the low- and high-frequency components of the total vertical wave force. Based on the separation results, the relationship between the wave force and wave crest amplitude is thereafter examined. An empirical formula is proposed to predict the vertical wave force. It is hoped that the aforementioned empirical formula may be widely applied during bridge design.

在这项研究中，对箱形梁式桥面板上的波浪作用进行了实验研究。测试了两种类型的入射波，即规则波（RW）和聚焦波（FW）。获得并分析了垂直波力的傅立叶，小波和希尔伯特谱。然后应用四种不同的方法来获得总垂直波力的低频和高频分量。根据分离结果，然后检查波浪力和波峰幅度之间的关系。提出了经验公式来预测垂直波力。希望上述经验公式可以在桥梁设计过程中得到广泛应用。