| 摘要 |
The invention relates to building structures wherein adjoining precast concrete floor elements are interconnected and supported by peripherally located columns spaced apart by a distance which may be greater than a width of one of the building elements. According to the invention a concrete material building element is slab-shaped and has an upper face and a lower face, a first side defining a first extension of the building element and a second side defining a second extension of the building element, elongated metal torsion reinforcement for limiting or preventing concrete cracking due to torsion being at the first side, embedded in the concrete material to extend along the first side. Elongated metal tension reinforcement for resisting or preventing concrete cracking due to tension is also embedded in the concrete material, transversally to extend inwards into the building element from the first side, and a duct suitable for receiving at end on for post-tensioning the building element is embedded in the concrete material at the first side to extend along the length thereof. |
