| 摘要 |
FIELD: construction. ^ SUBSTANCE: invention concerns construction industry, in particular it can be used for reconstruction of hollow core slabs of building or structure floors damaged by fire. The result from using the invention is achieved by the fact that according to the method for reconstruction of floor panels, which include additional reinforcement pieces and concrete, at fist reinforcement products are made in the form of flat grid frames or coupled flat composite frames with clamps on the support part of the panels, then slots are cut in the middle of the panel flange bottom with a length not less than that of the wiring bar of the reinforcement frame and with a width not less than that of the frame cross-section, holes on the ends of the panel top flange are cut with an interval of 1.5/2 m, reinforcement pieces are installed into the hollow channels of the panels, concrete is supplied through the slots (holes) cut in the panel top flange. ^ EFFECT: efficient reconstruction of hollow core slab performance (strength, stiffness, crack resistance and fire resistance), improved performance reconstruction quality, metal saving, reduced material cost and power consumption during repair work, reduced risk of collapse of damaged floor panels during their reconstruction. ^ 11 cl, 15 dwg |
