Architectural and space-planning solutions

The projected residential building with built-in premises and underground parking consists of seven eight-storey residential sections. The maximum dimensions of the building in the plan are 94,8 x 72,3 m, the height from the planning mark of the ground to the top of the parapet is 27,85 m. The building is designed: in the basement - premises for engineering support of the building and a built-in parking lot for 166 cars; on the ground floor - entrance groups of the residential part of the building, built-in premises (offices), electrical panel, janitor and garbage collection chambers; on the other floors - residential apartments of improved planning. Each residential section provides for the installation of an elevator with a lifting capacity of 1000 kg. The hull cover is designed flat with internal drains, the roof is rolled. Above the attached part of the underground car park, an exploitable roof covered with paving slabs was designed. The exterior finish of the building includes decorative plaster over a fiberglass mesh and natural stone slabs. The project documentation provides for measures to ensure the living conditions of people with limited mobility in accordance with SNiP 35-01-2001.

Structural and space-planning solutions

The building consists of five structural compartments separated by expansion joints. 4 compartments of the building - 8-storey with underground parking, 5 compartment - one-story underground parking. Building responsibility level – II. The constructive scheme of the building is mixed. Bearing walls are designed from monolithic reinforced concrete class B30, B25. The wall thickness is 300-350 mm in the underground part of the building, 250 mm in the high-rise part of the building. The walls of the underground part of the building and the walls of the parking lot are made of monolithic reinforced concrete of class B30, F50, W12. The outer walls of the buildings are self-supporting brick floor cuts 250 mm thick, insulated from the outside with a heater 150 mm thick, hollow brick grade M150 on mortar M100. Columns - section 600x600 mm, 500x500 mm (in the underground part) 500x500 mm, 500x400 mm (in the high part) are installed with variable pitch. Concrete columns B30, B25. Armature A500. Ceilings - beamless, monolithic 220 mm thick (with a reinforced concrete beam along the perimeter of the building 500 mm (h) * 300 mm and with a reinforced concrete beam in the body of inter-apartment brick walls 600 mm (h) * 250 mm). The floor in the underground car park is beamless, monolithic, 400 mm thick. Ceiling concrete is accepted class B35, B30, reinforcement class A500 and A240. The spatial rigidity and stability of the building is ensured by the presence of stiffening cores - monolithic walls of stair-elevator units, rigidly connected by monolithic ceilings. Stairs - monolithic reinforced concrete. Partitions - made of GKL (KNAUF) 100 mm thick and ceramic bricks 120 mm thick. The load-bearing structures of the hulls were calculated using the Robot Structural Analysis software package. Horizontal displacements and acceleration of vibrations of structures, arising from the pulsation of the velocity pressure of the wind, do not exceed the maximum allowable values. The foundations of the buildings were developed on the basis of engineering and geological surveys carried out at the construction site. Foundations - monolithic reinforced concrete slabs 400 and 750 mm thick on a pile foundation. Piles - bored (produced under the protection of a casing using Fundex technology) with a diameter of 520 mm, a length of 25,68 m (under the high-rise part, with a pile heel mark of -23.23 m), the design load on the pile is 122 tf (forces in piles are not more than 95 t ) and a length of 18,38 m (for a one-story parking lot, with a pile heel mark of -15,93), the design load on the pile is 86 tf (forces in piles are not more than 70 t). Concrete piles B30, W6, F100. At the base of the piles there are silty plastic sandy loams with a total deformation modulus IL=0,43, φ=25, с=0,18 kgf/cm2, Е = 150 kgf/cm2. The grillage is designed from monolithic reinforced concrete, concrete class B30, W12, F100. Pairing of piles and grillage is rigid. Concrete preparation 80 mm thick is provided under the grillage. The relative elevation of 0,000 corresponds to the absolute elevation of +6.35 m. The maximum level of groundwater near the day surface (absolute elevation +5,82 m). Groundwater is non-aggressive to concrete of normal permeability. The project provides for measures to protect the basement from groundwater: the use of low-permeability concrete (W12) and coating with bitumen for two times. Expected average design precipitation is no more than ~ 2,0 cm. To ensure the safety of the buildings of the surrounding development, the design documentation provides for the strengthening of the structures of the transformer substation, the construction of a pile field from bored piles (gentle pile driving technology, without dynamic impact), the construction of a foundation pit with a sheet pile made of Larsen V sheet pile (pressure piling), the construction of a foundation pit with grippers with unloading device. The design documentation provides for the organization of observations of the surrounding buildings. The expected additional settlement of the surrounding buildings is not more than 0,5 cm, which is less than the maximum allowable values.