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1、楼板裂缝大多有以下几种情况(1)斜向裂缝:多分布在房屋外墙转角所在房间的楼板上,裂缝一般成45°斜向,有时一只角同时出现两条裂缝,裂缝基本上为上下贯通。如某七层框架商住楼工程,结构总长度约为100m,设有两道温度缝,其基础一侧为条形基础,其余为独立承台基础。在工程交接时后两个月左右突然发现在靠其中一条温度缝的一跨柱角楼板有45°裂缝,从三层至六层楼板每层均有3条,但均未贯穿楼板。(2)纵横向裂缝:主要表现为纵横向裂缝。如某教学楼,其
1, the cracks in the floor most of the following situations (1) diagonal cracks: the walls are located in the corner of the house where the room floor, cracks generally 45 ° oblique, and sometimes one corner at the same time there are two cracks, the basic crack Up and down through. Such as a seven-story commercial and residential buildings, the total length of the structure is about 100m, with two temperature joints, the basis of a strip-shaped foundation, the rest of the basis for an independent cap. Two months after the handover of the project, it was suddenly found that there was a 45 ° crack in a span column floor by one of the temperature seams, three on each floor from three to six floors, but none of them penetrated the floor. (2) Vertical and horizontal cracks: mainly vertical and horizontal cracks. Such as a teaching building, its