| 摘要 |
<p>The prefabricated concrete storey ceiling slab element has parallel lengthways hollow spaces and a parallel main reinforcement. At least one area (16) between two adjacent hollow spaces (A) is wider than the other intervening areas (1c), and in this area the main reinforcement (1g) is also wider. There may be three or more parallel hollow spaces, and a main reinforcement in each. The main reinforcement projects beyond the element and forms a lopp for attachment to a corresp element.</p> |
