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各种预制接板，特别是预应力多孔板，普遍被用于各种工业与民用建筑结构中。预制接板地面往往产生沿拼缝方向的裂缝，这些裂缝不仅影响建筑物外观质量，而且，影响地面结构内在质量，应引起足够重视。1、预应力空心楼板拼经开裂的原因分析这种裂缝在地面中比较普遍，产生的原因
Various prefabricated panels, especially prestressed porous panels, are commonly used in various industrial and civil building structures. Prefabricated slab floors often produce cracks in the direction of the joints. These cracks not only affect the appearance quality of the building, but also affect the intrinsic quality of the ground structure and should be given sufficient attention. 1. Causes of Cracking in Prestressed Hollow Floor Cracks This type of crack is common in the ground and causes