| 摘要 |
PROBLEM TO BE SOLVED: To facilitate the design and execution of two-dimensional void concrete slab, by arranging light-weight materials in the spaces partitioned like a check pattern by the upper and lower end reinforcements arranged both longitudinally and latitudinally in a form and placing concrete therein. SOLUTION: Lower end reinforcements 2a, 2b are arranged both longitudinally and latitudinally in a form 1. After auxiliary reinforcements 4b have been arranged at the intermediate parts of the adjacent lower end reinforcements 25, auxiliary reinforcements 4a are arranged at the intermediate parts of the adjacent lower end reinforcements 2a. Then, the upper end reinforcements 3a, 3b are both longitudinally and latitudinally arranged to partition the space in the form like a check pattern. Embedding materials 5 are arranged in the spaces and concrete is placed. And the concrete slab is provided with a sectional shape in which I-shaped beams are connected in two directions crossing each other at right angles and a sectional function effectively transmitting a load to two directions as a four sides-supporting slab. In this way, this slab can be applied for a wide range of slab shapes and conditions.
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