| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure of wooden roof and floor slab, which can enhance the rigidity of the wooden roof and floor slab, so as to achieve a freedom of design. SOLUTION: Wood or plywood is used to constitute a folded-plate-like material, and wood or a plywood is integrated with both surfaces thereof in the direction to cross the folded plate, so that the one attached to the upper surface serves as an upper chord member while the one attached to the lower surface serves as a lower chord member, thereby forming a lattice beam with the folded plate as a lattice material. Hereby, the wooden board with high rigidity has the folded plate and the lattice beam existing within the same board. COPYRIGHT: (C)2011,JPO&INPIT
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