现代社会中,钢结构桥梁在重载荷交通量的作用下,会产生疲劳。对于影响钢结构桥梁服务年限的众多因素中,公路钢结构桥梁的抗疲劳性是十分重要的原因之一。而在整个公路桥梁的设计过程中,我们必须要结合桥涵设计指标的具体要求,同时结合自身的实际情况,优化我们的设计形式。本文对公路桥梁设计中的公路钢结构桥梁的疲劳设计要点进行了浅述。 In modern society, the steel bridge will fatigue under heavy load of traffic. Among the many factors that affect the service life of steel bridges, the fatigue resistance of highway steel bridges is one of the most important reasons. In the entire highway bridge design process, we must combine the specific requirements of the bridge design indicators, combined with their own actual situation, optimize our design. In this paper, the key points of the fatigue design of highway steel structure bridges in the design of highway bridges are described.