| 摘要 |
PROBLEM TO BE SOLVED: To provide floor panels for boundary floor which make the design and production easier even though an opening is formed. SOLUTION: Pipe spaces 23A to 30A are provided a adjacently to short-side floor beams 12B and to a middle beam 21 respectively. Among ALC panels 40A to 40H which are arranged in plurality between long-side floor beams 12A facing each other, only the ALC boards 40A, 40D, 40E, 40H laid adjacently to the short-side floor beams 12B and the middle beam 21 are required to be processed in response to the peripheral edge shape of pipe space portions 23A to 30A. Other ALC boards 40B, 40C, 40F and 40G can be used in common with the conventional ALC panels. In this way, design changes for the floor can be made to a minimum even though the pipe space portions 23A to 30A are formed, thereby simplifying the design and production of the floor panels for boundary floor.
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