针对太旧高速公路武宿立交枢纽主线桥出现的裂缝、漏筋、缺损、麻面、空鼓、露筋、露波纹管等缺陷,初步分析箱梁承载能力有所下降,抗弯承载力安全储备不足,抗剪强度难以满足设计和使用要求,刚度不足,不能够满足设计和使用要求。文章通过对加固方案的研究,针对不同病害提出了不同的加固措施。 In view of the defects such as cracks, leaks, leaks, defects, pockmarks, hollow drums, exposed tendons and exposed corrugated tubes in the main suspension bridge of the Wusu interchange over the too old expressway, the carrying capacity of the box girder is reduced and the safety of flexural capacity Lack of reserves, shear strength is difficult to meet the design and use requirements, lack of stiffness, can not meet the design and use requirements. Through the study of reinforcement scheme, the article put forward different reinforcement measures for different diseases.