钢筋混凝土结构一旦出现裂缝,不但会降低其结构强度,影响其承载能力,降低使用寿命,甚至还有可能导致严重的安全事故出现。本文重点探讨了混凝土结构塑性沉降裂缝、塑性收缩裂缝和温度应力裂缝等三种主要的裂缝产生的原因、以及预防和治理措施,目的是保证施工质量,延长建筑物使用寿命。 Reinforced concrete structure in the event of cracks, not only will reduce its structural strength, affecting its carrying capacity and reduce the service life, and may even lead to serious accidents. This article focuses on three main causes of plastic cracks, plastic shrinkage cracks and temperature stress cracks in concrete structures, as well as prevention and treatment measures to ensure construction quality and extend the service life of buildings.