Abstract
In the paper, two-phase flow is introduced based on incompressible, vicious fluid governing equations and Piecewise Linear Volume Tracking Methods. The basic objective is to investigate coupled cable-deck vibration under wave effect of long span cable-stayed bridges. In the article, the contact surfaces between waves and structures are treated with Virtual Boundary Force Method and Two-step Boundary Pinpoint Method. Then three dimensional model of interaction between waves and structures is set up and wave force is calculated. In addition, the paper develops the bridge model based on finite element method and the responses of main beam and towers under wave influence are studied. Finally, the results suggest that the side spans are much influenced by waves. It is noted that its acceleration and bending moment are much bigger than main span due to additional piers. Also, when the authors consider local vibration of cables effect, the lateral acceleration and lateral bending moment responses under wave are decreased.
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