On a method of separating hyperplane construction

Metodology for checking the seismic strength of buildings based on existing norms

“…Various construction organizations, research and project institutes offer organizational and technological solutions for adding additional floors, expanding buildings, expanding erkers and loggias, Diamond and strengthening structures, creating energy savings in buildings, replacing engineering networks, repairing roofs, etc. However, not all recommendations of foreign construction engineers can be applied to the territory of the Respublka of Uzbekistan [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23].…”

“…At the same time, since September 1, 2022, the introduction of the procedure for obtaining conclusions on earthquake relations to objects belonging to Category IV (objects with the highest risk factor), the risk factor under which a new construction is planned in the seismic active zones of our republic, And since October 1, it is another aspect of recognition that the procedure for introducing proposals for the gradual introduction of new housing in the territory of the Republic into the local state authorities in the place of seismically weak and accident-prone housing, which, according to the results of which the period of operation has been completed, has been established and the practice of Starting in 2023, a series of construction planned or selected buildings and structures with a height of 9 floors or higher in the seismic active zones of the Republic, testing and inspection using vibrodynamic equipment or modern digitized instrumental equipment was established in order to increase the earthquake intensity, ensure quality and eliminate defects in advance [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23].…”

Experimental studies of the stress-strain state of cylindrical shells

“…After this, exceeding the load by another 4-6% led to a loss of overall stability and at the same time to the exhaustion of the load-bearing capacity. The period from the beginning of buckling to failure was very short: at this stage, deformations developed rapidly with increasing load [10]. The nature of the stress-strain state of reinforced shell models under central compression was significantly different from the stress-strain state of smooth models (Fig.…”

Capillary permeability of concrete in aggressive dry hot climate

“…Taking into account the above, the relationship of capillary permeability with the salt resistance of concrete was determined by an indirect method: by the change in the ultimate tensile strength of concrete specimens in bending, the magnitude of the relative expansion deformations of concrete and the accumulation of SO2-4 and Cl-ions, as well as the salt resistance coefficient (Kc). [6][7][8][9][10][11][12][13][14][15][16][17][18].…”

“…As you know, the corrosion resistance of concrete cement stone depends, on the one hand, on the chemical resistance of its constituents in relation to an aggressive agent (for example, SO4 2-ion), and on the other, on the rate of penetration of the solution of this aggressor into the cement stone [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17].…”