Abstract
Technological and constructive decisions of modernization and reconstruction of large-panel buildings of the first mass buildings are considered in the article. The technology of the reinforced concrete diaphragms of the building hardness brings the seismic stability of the building to the normative level. The technologies of erecting a building with bay windows, as well as the construction of attic floors by the method of mounting bulk units enlarged onto the span have been developed. The folding volumetric blocks and the technology of their installation are proposed. The analysis of reconstructive works in two variants showed their rationality and financial attractiveness in comparison with the dismantling of buildings.
Highlights
As it is known, in the past [15-20] years, the need for modernization and reconstruction of large-panel buildings of the series [1-335] of various modifications has grown sharply in the Irkutsk region
The main constructive methods of reconstructive works are the installation of additional internal diaphragms of stiffness, prestressed wall posts and partial unloading of load-bearing wall panels made of gas ash concrete, additional construction of attic floors, elevator shafts and bay windows, warming of the building and installation of new windows
Tenants of the fifth floor are evicted for the duration of the attic installation, and the tenants of the end apartments for the duration of the work on the shotcrete. This method consists of the installation of through-going external prestressed columns, reinforcement by the spraying (t=80 mm) of part of the facade panels and end walls, additional construction of the attic floors, elevator shafts and bay windows, and warming of the building
Summary
In the past [15-20] years, the need for modernization and reconstruction of large-panel buildings of the series [1-335] of various modifications has grown sharply in the Irkutsk region. It should be noted that over these years, many experts came to conclusion on demolishing the buildings of these series and construction of new modern residential buildings in their place that meet the criteria for safety of life, energy efficiency and comfort of living
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