单板受力是近年来高等级公路在超载车辆作用下产生的新发病害,以往也采取过多种防治措施,但大多效果不是太理想,山东某桥的加固维修采取多种措施相结合的方法,取得了较好的加固效果。文章对单板受力表现特点、形成原因、防治对策等方面进行了分析和探讨,并提出了解决办法。 In recent years, veneer stress is a newly developed disease of high-grade highways under the action of overloaded vehicles. In the past, various preventive measures were taken, but most of the effects were not so satisfactory. The consolidation and repair of a bridge in Shandong Province adopted a combination of measures Method, and achieved a better reinforcement effect. The paper analyzes and discusses the characteristics, causes and prevention and cure measures of veneer stress, and puts forward the solutions.