| 摘要 |
PROBLEM TO BE SOLVED: To provide an upper floor slab reinforcing method for reinforcing an upper floor slab against shear and bending stresses when a concrete structure, such as an existing tunnel or an existing high-rise building, is aging, so that immediately after construction work, the upper floor slab, in cooperation with the existing concrete structure, has reinforcing bearing forces which resist load. SOLUTION: A reinforcing beam 7 is anchored to the inside of the upper floor slab 3 of an existing concrete structure with a predetermined gap 26 therebetween, and a jack 27 is inserted into the gap 26 to jack up the upper floor slab 3. Thereafter, a gap maintaining member 28 is inserted into a gap 26 secured by the jacking-up and the jack 27 is removed. A reinforcing filler 29 is injected into the gap 26 and solidified.
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