To provide an existing floor reinforcing method allowing easy and economical construction work.
In the existing floor reinforcing method, a through hole 9 for a strut member is opened in an existing floor 2, and through holes 25 for a tension chord material are opened in straight line parts with the through hole 9 for the strut member placed in between. The tip parts of guide ropes 29 are allowed to pass under the floor from the through holes 25 for the tension chord material and to pass above the floor through the through hole 9 for the strut member. The tip parts of the guide ropes 29 are then bound individually to the ends of a plurality of tension chord materials 4 connected to the tip part of the strut member 3, and the strut member 3 to which the guide ropes 29 are bound, is inserted in the through hole 9 for the strut member. The rear end side of the guide ropes 29 is then pulled from the through holes 25 for the tension chord material to pull up and fix the end parts of the tension chord materials 4 to the through holes 25 for the tension chord material, and the strut member 3 is projected to the lower side to apply tension to the tension chord materials 4.
KANO MASASHIGE
KIKUCHI YASUSHI
Kyoko Kawamura
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