钢筋混凝土现浇板的裂缝,是目前建筑工程中比较常见的质量通病之一。现就我公司在几十年施工中积累的经验,从设计、材料、施工等方面谈谈现浇板裂缝的成因及防治措施。1 设计方面现浇楼板裂缝常发生在房屋四周的阳角处,即在楼板的分离式配筋负筋、角部放射筋末端或外侧发生45°的楼面斜角裂缝。其主要原因是由于混凝土凝固后收缩及温差引起的伸缩的共同作用结果。由于现行设计规范偏向从强度方面考虑,未充分考虑到混凝土收缩和温差的影响,配筋率也偏小。因此房屋边角处因受墙体及横梁等约束而限制了楼 Cracks in the cast-in-place concrete floor is one of the more common quality defects in construction. Now my company in the construction of decades of accumulated experience, from the design, materials, construction and other aspects of the reasons for the cracks and cast-in-place prevention and control measures. 1 Design Cracks in cast-in-place floors often occur around the house at the corners of the building, ie at the floor of the separated reinforcement tendons, corner radiating tendons at the end or outside of 45 ° angle bevel cracks. The main reason is due to the contraction of concrete and the temperature difference caused by the expansion and contraction of the joint results. Due to the current design specifications tend to be from the strength of considerations, did not fully take into account the impact of concrete shrinkage and temperature differences, reinforcement ratio is also small. Therefore, the corner of the house due to constraints by walls and beams and other restrictions on the floor