混凝土桥梁在建造和使用过程中,因出现裂缝而影响工程质量。本文通过近年来公路危桥改造工程对混凝土桥梁裂缝的种类和产生的原因作较全面的分析、总结,旨在找出各种裂缝的防治措施,并提出简单的裂缝修补方法,以方便设计、施工找出控制裂缝的可行办法,尽量避免危害较大的裂缝在工程中出现,达到防范于未然的作用。 Concrete bridges in the construction and use of the process, due to cracks and affect the quality of the project. In this paper, through the reconstruction of highway bridge in recent years, the types and causes of cracks in concrete bridges are comprehensively analyzed and summarized. The purpose is to find out the measures for prevention and control of various cracks and to propose a simple repair method for cracks to facilitate the design, Construction to find out feasible ways to control cracks, try to avoid the more damaging cracks appear in the project, to prevent the accidental effect.