| 摘要 |
The present invention relates to a composite beam deck that cannot be expanded or contracted according to the change in humidity and/or temperature. The composite beam deck includes a deck made of synthetic wood having an arched portion, of which at least both sides are bent inward, and an opened portion which is opened downward at both sides of the arched portion; and a reinforcing member made of metal stronger than that of the deck, and having an arched support portion corresponding to the arched portion, and a lateral support portion extending from both an upper end of the arched support portion and supporting the top surface of the opened portion of the deck in a surface-contact state. Even though costs of the synthetic wood used as for the deck are reduced, the deck is not deformed by humidity and/or heat for a long time. |
