Dynamic wind effects on suspension and cable-stayed bridges

• This paper reviews dynamic wind effects on cable supported bridges.
• The importance of the structural dynamics on the wind response is emphasized.
• The physics of flutter, vortex shedding excitation, buffeting and galloping is discussed.

Cable supported bridges are flexible structures which may be excited into oscillations by the wind. The excitation forces acting on cable supported bridges are aerodynamic by nature, but are for a large part set into play by the underlying structural dynamics of the bridge structures. The paper discusses the various types of dynamic wind effects commonly encountered for suspension and cable-stayed bridges emphasizing the importance of the structural dynamics.