杨德钦1 ,严伟平2, 郑建立2
框剪结构楼板对角裂缝成因及施工预防
杨德钦1 ,严伟平2, 郑建立2
摘 要:某框架剪力墙结构工程初期施工中,出现了楼板对角裂缝和跨中裂缝。经从结构、构造和施工多方面分析,主要是因板的抗裂能力不足引起的。后续施工中,采取在楼板上部加配双向抗裂构造钢筋网片、调整混凝土组分材料和配合比、改善混凝土性能的综合措施,成功解决了问题。
Abstract: Some floor diagonal cracks and mid-span cracks appeared in initial construction period of a frame-shear wall structure. By comprehensively analyzing from structure to construction, the crack is caused by the deficiency of crack resistance capacity of the floor. Then, the following measures are taken: such as configuration of bidirectional crack resistance reinforced, adjustment of components materials and mix proportion of the concrete, improvement of the concrete characteristics. The crack problem is resolved successfully.
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