Results of the technical survey of the historical archive of Ukraine at square Soborniy in Lviv

The article highlights the results of the technical inspection of the Central State Historical Archive of Ukraine building on the 3a Soborna sq., Lviv. The building was built around 1620. It is an architectural monument of national importance and an integral part of the architectural complex, including the Bernardine church. The building is attached to the northern wall of the church, and from the east, it is surrounded by walls with an entrance tower. The portals of the 17th century have been preserved in the interior and fragments of 18th century paintings. In the plan, the building has a complex configuration, and its body covers a square inner courtyard. The building is made of brick, three- and partly four-story. The walls are reinforced with stone buttresses. Tracking indicators of the technical condition of the load-bearing structural elements of the building makes it possible to determine the technical condition of individual elements and the building as a whole. Most often, the destruction of the object does not occur instantly – this requires a long-term influence of certain factors over time. Scheduled inspections carried out in time make it possible to establish the safety of further operation, to detect defects in the early stages and to prevent emergency technical conditions of buildings and structures. In addition, it can significantly affect the cost of construction and installation work and increase the term of further safe operation. Very often, in buildings subject to inspection, atypical constructive solutions are adopted, which are difficult to find in modern literature, and individual recommendations and approaches to solving the problem must be developed. During the inspection of the Central State Historical Archive of Ukraine on Sobornia Square in Lviv, elements of load-bearing structures belonging to an emergency technical condition were discovered. In order to prevent the destruction of the entire building, the detected defects must be eliminated during major repairs by strengthening. The article provides recommendations for removing the building from an emergency state.