In the historical center of Odessa, the reconstruction of a three-story building of ancient building was implemented. The technical condition of the bearing structures was defined in the range from unsuitable to normal operation to emergency. The main reasons have become a long period of operation without the necessary current and major repairs and accident of water-borne communications in the basement, which led to uneven subsidence of foundations. Additional factors – long-term leakage from water-borne networks, damage to the drainage and drainpipes. The spatial stability and stiffness of the building were lost due to the formation of through cracks in the walls, dividing the building into separate blocks. During the reconstruction a complex of works was carried out that included: reducing loads on the walls and overlays by replacing mortars from ground limestone with ephetinal sound-insulation, reinforcing and replacing wooden beams of over lapping with rolling channels, merging longitudinal and transverse walls with reinforcement of steel strainers from tension devices in the level of ceilings of the first and third floors, installation of vertical steel welded frames – diaphragms from rolling profiles in places demounted stone partitions.
