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一、概念 后浇带是指在现浇整体钢筋混凝土结构中,在施工期间保留的临时性温度和收缩变形缝。 沉降缝是指在工程结构中,为避免因地基沉降不均导致结构沉降裂缝而设置的永久性的变形缝。 后浇带的设置着重解决钢筋混凝土结构在强度增长过程中因温升、温降、混凝土收缩等产生的裂缝,以期达到释放大部分变形、减小约束力,避免混凝土结构出现贯穿裂缝的目的。后浇带是一种临时性的钢筋连续的变形缝,它属于一种伸缩缝。根据工程具体条件,
I. Concept The post-pouring zone refers to the temporary temperature and shrinkage deformation joints that remain in the cast-in-place reinforced concrete structures during construction. Settlement joint refers to the permanent deformation joint set in the engineering structure to avoid the settlement crack caused by uneven foundation settlement. The setting of the post-pouring zone focuses on the cracks caused by temperature rise, temperature drop, and concrete shrinkage during the process of strength increase of the reinforced concrete structure, in order to achieve the goal of releasing most of the deformation, reducing the binding force, and avoiding the concrete structure from appearing through the crack. The post-pouring belt is a temporary reinforcing bar continuous deformation joint, which belongs to a kind of expansion joint. According to the specific conditions of the project,