| 摘要 |
The present invention relates to a flat ribbed slab for a PC composite building, capable of significantly improving vertical resistance in a directly downward direction, generated in the manufacture of a long span pre-stress (PS) slab and securing a heat insulation property while enabling a flat type by blocking an opening part of a rib, formed on the floor, as necessary and strengthening the weak width continuity in the construction of an existing slab, and therefore, improving usability and the external appearance of a ceiling part of a structure such as a basement parking place. Moreover, the present invention is capable of improving two-way structural continuity in width and longitudinal directions of a panel and reducing the cross-sectional thickness of the panel as compared to the cross-sectional thickness of a floor rib to secure structural strength when designing a high floor level, and improving structural stability and productivity by reducing the usage of concrete in the manufacture of precast concrete (PC). |
