在役高速公路局部结构缺陷门架式标志加固改造方案研究
Study on Strengthening and Reforming Scheme of Door Frame Signs with Local Structural Defects of Expressway in Service

文章运用有限元分析的方法，对在役高速公路常见的典型结构缺陷的门架式交通标志结构稳定性进行分析，并研究门架式结构标志局部结构加固改造方案。经分析研究，加固改造方案可较大地强化门架式标志结构，经多年实践，文中所提的缺陷门架标志局部改造方案合理，可为类似工程的门架标志加固改造提供思路及参考。
This paper uses the method of finite element analysis to analyze the structural stability of the typical structural defects of door frame traffic signs common to expressway in service, and study the local structural reinforcement and reconstruction scheme of door frame structural signs. After analysis and research, the reinforcement and reconstruction scheme can be larger strengthening the structure of sign conveyor, after many years of practice, the defective door frame sign local reconstruction scheme proposed in the article is reasonable, and it can provide ideas and references for the reinforcement and reconstruction of door frame signs in similar projects.