| 摘要 |
PROBLEM TO BE SOLVED: To facilitate the reinforcement arrangement work by joining concrete boards arranged opposite to each other with an appropriate space with truss reinforcements arranged between the concrete boards, and embedding these truss reinforcements in joining projections. SOLUTION: An upper and a lower concrete boards 2a, 2b having the same dimension and arranged opposite to each other with an appropriate space are joined with each other by truss reinforcements 3 arranged between the concrete boards 2a, 2b. These truss reinforcements 3 are embedded in joining projections 4, and the upper and the lower concrete boards 2a, 2b are joined with each the by the truss reinforcements 3 and the enjoining projections 4, and concrete is placed between the concrete boards 2a, 2b in the construction field. Five truss reinforcements 3 are embedded with an appropriate space, and both upper and lower ends thereof are embedded in the upper and the lower concrete boards 2a, 2b, and a triangle pole truss is formed of an upper chord reinforcement 6, two lower chord reinforcements and a lattice reinforcement. The work for arranging the slab upper reinforcement and the concrete curing control can be thereby facilitated.
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