Abstract
The problem of the dynamic response of a horizontally stayed bridge under wind loading is considered. A linearized dynamic analysis is performed on the proposed system to strengthen the transverse stiffness of the bridge, which is idealized as a two-span beam supported on two intermediate flexural springs which represent the cables used. Free and forced motion are thoroughly discussed and a variety of results are obtained, casting significant light on the effect of the main geometrical properties and wind duration on the eigenfrequencies as well as on the dynamic deflection and bending moment of the bridge, as compared to the classical two-span continuous beam model.
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