腹板裂缝的出现对桥梁的工作性能和承载能力有很大的影响。本文从某实际桥梁工程入手,结合裂缝分析理论,对该连续刚构桥梁腹板裂缝的分布、产生、发展做了较为详细的阐述,并对裂缝成因提出了一种全新的分析和解释。同时对施工中应注意的问题提出了建议。 The emergence of web cracks on the bridge’s performance and carrying capacity have a great impact. In this paper, starting with a practical bridge project, combined with the theory of fracture analysis, the distribution, generation and development of the web cracks of the continuous rigid frame bridges are described in detail, and a new analysis and explanation of the causes of the cracks are proposed. At the same time, some suggestions on the problems that should be paid attention to in construction are put forward.