文章结合广深高速公路东莞北大桥的现状,通过大量现场调查,分析病害产生的原因,展开加固方案研究及加固期间交通组织对策研究工作。针对高速公路上的桥梁在大交通量不中断交通的情况下的交通组织,及无横隔板、宽桥面板等“柔性”理念设计下的T梁加固等问题,提出科学的加固对策及合理的交通组织措施,为同类桥梁的加固维护提供一个可借鉴的思路。 Based on the current situation of North Bridge in Dongguan of Guangzhou-Shenzhen Expressway, the article analyzes the causes of the disease through a large number of field investigations, and conducts research on reinforcement scheme and research on traffic organization countermeasures during reinforcement. In view of the traffic organization of the bridges on the expressway without any traffic interruption and the reinforcement of the T girders under the design of “flexible” concept without the transverse bulkhead and wide bridge deck, a scientific reinforcement strategy And reasonable traffic organization measures to provide a reference for the reinforcement and maintenance of similar bridges.