Publications

This paper presents a numerical method to determine the dynamic response of a simply supported floating bridge subjected to two moving loads. The proposed method employs the combination of Transfer Matrix and Boundary Element Methods (TMM-BEM). The floating bridge is modeled as beam field elements, whereas the fluid domain is modeled as constant boundary elements. First, the fluid-coupled free vibration analysis is carried out by iterative method to compute the added mass and radiation damping. Then, Transfer Matrix Method with Direct time integration by the Newark method is employed to solve the equation of motion for structural system. The numerical results of the proposed method are verified with exact-analytical solution for floating beam under moving concentrated loads and a good agreement is achieved. Some numerical examples for floating bridge are presented to discuss their dynamic behavior under two moving loads.