Annotation

In residential and public buildings of old constructions, in particular in the central part of Lviv, wooden floors are arranged. During the long-term operation in the main load-bearing structures of such floors there are significant defects and damage, the main of which are: excessive deflections, rot and fungal formations (especially on the supporting parts of the outer walls), horizontal and oblique delaminating cracks of considerable length. Most floors with such individual or complex defects and damage need to be reinforced or replaced. With the complete dismantling of wooden floors, you can arrange a new capital flat reinforced concrete floor of lightweight type using inserts of different shapes and materials. However, the presented method of wooden structures reconstruction is expedient for technical and economic reasons: remove the upper layers of the floor structure (parquet, plank flooring, etc.) with full exposure of wooden beams on top and sides; cement mortar is laid on the lower (ceiling) flooring; foam is laid between the wooden beams with the formation of the contours of the future reinforced concrete beams; metal anchor elements are drilled into the wooden beams on the sides and top; reinforcing frames of reinforced concrete beams and reinforcing grids of the top plate over them are mounted; concrete is laid. The result is a new slab-ribbed reinforced concrete floor structure, which uses the existing wooden floor as formwork. The new construction of floor has best sound and heat insulating properties and the necessary fire resistance.