| 摘要 |
PROBLEM TO BE SOLVED: To reinforce a passage place after underfloor work performed by forming a passage for a worker, a pipe, and wiring by breaking down a part of base concrete. SOLUTION: A first butting part 13 abutting on a side surface 6 of the base concrete 3 is arranged on both sides of a reinforcing metal fitting body 12 for laterally installing the passage 7 in the base concrete 3 in the middle of the underfloor work and after the work. The first butting part 13 is provided with a first inserting hole 15 of a first fixture 14 inserted into the base concrete 3. The reinforcing metal fitting body 12 is provided with a second butting part 17 abutting on the side surface 9 of a sill 5, and the second butting part 17 is provided with second inserting holes 20 and 21 of second fixtures 18 and 19 inserted into the sill 5. The base concrete 3 and the sill 5 are integrated by a reinforcing metal fitting 11, and can prevent reduction in strength in a passage 7 place. COPYRIGHT: (C)2005,JPO&NCIPI
|
