Dynamic Model of a Discrete-Pontoon Floating Bridge Subjected by Moving Loads
A discrete-pontoon floating bridge is studied based on the beam model with assumption of the bridge deck as a elastic beam with uniform section, live load such as vehicle as moving concentrate forces, and pontoons as independent mass-spring-damping systems with singular degree of freedom. The comparison results of between vehicles and moving concentrated force show that a vehicle load can be simplified as one moving concentrated force. The present model can study not only a single moving load but also multiple moving loads.
Z. Jun et al., "Dynamic Model of a Discrete-Pontoon Floating Bridge Subjected by Moving Loads", Applied Mechanics and Materials, Vols. 29-32, pp. 732-737, 2010