| 摘要 |
PROBLEM TO BE SOLVED: To provide a wooden building having a prefabricated floor beam structure of bolt joining by large and small perforated floor beams by providing the perforated small floor beam, and providing the perforated large floor beam for joining the perforated small floor beam for allowing mass production for providing the prefabricated floor beam structure for setting a through column in all of the positions of a specified dimension of a column interval of the wooden building. SOLUTION: This wooden building having a knockdown floor beam structure by the bolt joining composed of the large and small mass production perforated floor beams, which is provided in two stages on the same level on the small floor beam and the large floor beam provided with a column fixing bolt hole for joining a column at a specified interval by a bolt between respective pairs by using a size difference in a metallic groove section, is provided. COPYRIGHT: (C)2004,JPO
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