| 摘要 |
PROBLEM TO BE SOLVED: To realize space efficiency of a reinforced concrete building, avoiding deterioration of building strength. SOLUTION: In a floor-cum-ceiling wall 15 and a side wall of a reinforced concrete building, the areas of beams 1 of a ceiling are built in part of the floor-cum-ceiling wall 15 and the side wall and reinforced to strength having the function of beams compared to the other wall part. The projection of beams and columns is therefore eliminated to realize a flat wall surface excellent in space efficiency in the building without lowering strength, and laying of piping 21 and a duct 23 can be easily executed as linear routes because of no need of detour of the beams.
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