Technologies and Organization of Dismantling Columns Destroyed, Damaged and Those That Lost Stability and Bearing Capacity as a Result of the Explosion

The technologies and organization of the dismantling of destroyed, damaged columns and those that have lost stability and bearing capacity as a result of dynamic loads during an explosion is a very relevant topic, since these events have become extremely frequent in the modern world, and almost always cause damage to buildings and structures, such as civil and industrial infrastructure. The dismantling of such structures is a necessary stage in the demolition of old buildings for the construction of new ones, as well as the restoration and reconstruction of buildings and infrastructure. The development and improvement of technological methods and ways of dismantling damaged columns, the development of new mechanisms and devices is of great practical importance in the construction and reconstruction of infrastructure facilities. The purpose of the article is to study the methodology for the selection of effective OTD, which ensure the intensification of dismantling works and the reduction of the period of reconstruction and restoration of buildings and structures. The object of research: technological processes that occur during the dismantling of modern structures. The subject of the study: technological parameters and technical and economic indicators of technological processes, which must be performed during the dismantling of modern structures, based on the capabilities of the Ukrainian construction industry. Presentation of the material. To achieve the goal of the study, the following tasks were performed: it was analyzed what part of the volume of the entire building is occupied by reinforced concrete and metal columns; specific examples of the real use of various methods of dismantling columns damaged or destroyed by an explosion were found; the frequency of use of various methods of dismantling columns was analyzed; the key factors affecting the choice of column dismantling method are determined. The result of the study will allow to choose the most effective OTD that ensures the intensification of dismantling works and shortening the period of reconstruction and restoration of buildings and structures.