Wind Engineering of Long-Span Bridges

斜拉桥和悬索桥的桥面横截面形状是影响桥梁结构气动性能的一个基本特征。设计一个受风作用影响最小的截面形状是非常重要的。这项研究将为未来的初步设计确定桥梁截面形状的基本考虑因素，但更重要的是，对现有桥梁进行评估和可能的修改。现有大跨度桥梁的安全性可以通过更好地了解在各种风荷载作用下产生的空气动力效应来确定。

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.