Wind Engineering of Long-Span Bridges

斜拉桥和悬索桥的桥面铺装层的横截面形状是桥梁受作用在结构上的气动力的一个基本特征。重要的是设计一种横截面形状，使其具有最小的风作用影响。这项研究将确定桥梁横截面形状的基本考虑因素，用于未来的初步设计，但更重要的是，用于对现有桥梁的评估和可能的修改。大跨度既有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.