Wind Engineering of Long-Span Bridges

大跨桥梁风工程

• 批准号: 8512906
• 负责人: Robert Scanlan
• 金额: $ 19.46万
• 依托单位: Johns Hopkins University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1985
• 资助国家: 美国
• 起止时间: 1985-10-01 至 1988-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8512906&HistoricalAwards=false
• 关键词: Wind; Engineering; Long; Span; Bridges

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.

斜拉桥和悬索桥桥面的横截面形状是桥梁在作用于结构上的空气动力方面的行为的一个基本特征。 设计横截面形状以将风作用的影响降到最低是非常重要的。 这项研究将确定未来初始设计中涉及桥梁横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理解各种风载荷下产生的空气动力效应来确定。