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为防止现浇钢筋混凝土结构由于温度、收缩不均可能产生的有害裂缝,按照设计或施工规范要求,在板(包括基础底板)、墙、梁相应位置留设临时施工缝,将结构暂时划分为若干部分,经过构件内部收缩,在若干时间后再浇捣该施工缝混凝土,将结构连成整体。后浇带是既可解决沉降差又可减少收缩应力的有效措施,故后浇带法在建筑工程中已广泛应用。
In order to prevent harmful cracking of cast-in-site reinforced concrete structures due to uneven temperature and shrinkage, temporary construction joints are to be reserved on the corresponding positions of the slab (including the base slab), the wall and the girder according to the design or construction specifications, and the structure is temporarily divided into Several parts, after the contraction of the internal components, after a certain amount of time and then tamping the construction of concrete joints, the structure even into a whole. Post-pouring zone is not only able to solve the poor settling and shrinkage can reduce the effective stress measures, so after pouring tape method has been widely used in construction.