Effectiveness of reconstruction with additional floors for buildings of different construction periods

Abstract

There is a renovation program in Russia. It aimed to eliminate obsolete housing stock by the demolition of buildings, but there is an alternative - reconstruction with additional floors. Depending on the building construction period (1930-1955 or 1956-1968), the reconstruction technology differs in whether the load of new floors is transferred to old structures or to the new ones. This is determined by the condition and quality of the vertical supporting structures. The economic effect of construction will be different as a result of the various technologies application. It is also influenced by many factors such as limited sizes of construction site. This characteristic has a particularly large impact on the cost amount. The indicators of implemented projects of different construction periods are compared to determine the most advantageous reconstruction option. On the basis of the received information, it was established that the reconstruction with additional floors for houses built in 1930-1955 is more profitable than for houses built in 1956-1968. The last ones allow not only increasing the number of floors but also the expansion of apartments’ area due to foundation changes and improvements. This requires the development of a solution to achieve the most efficient working methods.