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经过大量的工程应用,预应力混凝土连续箱梁裂缝问题暴露明显,针对其开裂原因、加固方法的研究成为热点。本文通过资料的收集整理,总结了常见的裂缝形态,并分析了开裂原因。在对裂缝深入研究和多年加固实践的基础上,提出了加固概念设计的方法。通过一个预应力混凝土连续箱梁裂缝的加固设计,展示了该方法的应用过程与效果。
After a large number of engineering applications, prestressed concrete continuous box girder cracks exposed obvious, in view of its cause of cracking, reinforcement methods to become a hot spot. In this paper, through the collection of information to collect, summed up the common crack morphology, and analyzed the cause of cracking. Based on the deep research on cracks and the practice of reinforcement for many years, the method of strengthening conceptual design is put forward. Through the reinforcement design of a prestressed concrete continuous box girder, the application process and effect of this method are demonstrated.