Wind Engineering of Long-Span Bridges

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The cross-sectional shape of the bridge roadway deck for cable-stayed and suspension bridges is an essential feature of the bridge behavior with respect to the aerodynamic forces which act on the structure. It is of major importance to design a cross-sectional shape to have minimum effect due to wind actions. This study will determine the basic considerations involved with the shape of the bridge cross section for future initial designs but, more importantly, for an evaluation and possible modification of existing bridges. The safety of existing bridges with long spans may be determined from a better understanding of the aerodynamic effects produced under various wind loadings.