Architectural and space-planning solutions

The project documentation provides for the construction of the 3rd stage of the construction of an apartment building with built-in premises and a built-in-attached parking lot (garage). The designed residential building consists of 18 multi-storey residential sections with technical floors at el. -4.000 and upper technical floors. The residential building is organized according to the principle of sectional perimeter development with a courtyard located on the exploited roof of the built-in-attached parking lot. The number of storeys of sections is variable, from 8 to 19 floors, with a decrease towards the courtyard of a residential building. The maximum height of the building from the level of the daytime surface of the earth to the top of the superstructure parapet on the roof is 63,490 m. A transformer substation attached to the underground car park was designed. The floor of the lower underground floor of the car park is located at -4,000, the floor of the upper floor is at -0,600. In the technical floor at elev. -4.000 provides for the placement of engineering facilities for the building. On the ground floor, built-in public premises are designed in accordance with the Design Assignment and the calculation of the infrastructure, made in the "Project for planning the territory". As part of the built-in premises - offices, food and non-food stores, cafes, premises for club work and other service establishments that are not subject to the prohibitions of clause 4.10 of SP 54.13330.2011. Entrance groups of residential sections are designed from the side of the courtyard with entrances from the roof of the parking lot. On the second floor and above, accommodation is provided for apartments, most of which have glazed balconies and loggias. The height of residential floors is 3,1 m. Warm attics (upper technical floors) of residential sections are designed with combined ventilation shafts and roof fans. 13 residential sections provide for the placement of evacuation stairwells of the H1 type, elevators with a carrying capacity of 400 kg and 1000 kg, and garbage chutes. In 5 residential sections, evacuation staircases of the L1 type and elevators with a load capacity of 1000 kg were designed. Ventilated facades with mineral wool insulation and ceramic granite cladding are provided for the exterior walls. The plinth to a height of 0,4 m is lined with artificial stone. Glazing of all balconies and loggias is provided with the help of aluminum facade systems with opening elements. Decorative pylons with lintels, designed at the end of some loggias - from metal modular panels on a frame from a rolled profile. The top surfaces of the lintels are designed with a slope for rainwater runoff. To repair the surface of the pylons, the points of attachment of industrial climbers' equipment and access to them through the internal cavities of the pylons are provided. Access hatches are designed in the lower and upper zones. Window blocks of residential premises are designed from metal-plastic with double-glazed windows. In the window openings of living rooms, it is planned to install window blocks with inlet noise dampers with sound insulation of at least 27 dB, which provide protection from traffic and other noise. The roofing of the building is flat, with internal drains, the roof is rolled. The structure of the parking lot cover is a monolithic reinforced concrete slab 300 mm thick, the insulation is foam glass and foam plastic, the protective coating is asphalt concrete, paving slabs, lawn. The design documentation provides for architectural and planning measures that take into account the needs of people with disabilities in wheelchairs. Stairs on the relief difference on the site are duplicated by ramps and lifting platforms with inclined movement. There are 4 parking spaces for disabled people in wheelchairs in open individual parking lots. At the top level of the closed underground built-in parking lot, there are 5 parking spaces for disabled vehicles in wheelchairs. Disabled access to the courtyard is provided from the north and south sides on the lifting platforms that equip the stairs. At the entrances to the residential sections, ramps are designed to move from the mark of the roof in use to the mark of the 2nd floor and to elevators with increased cabin parameters. Ramps are also designed for wheelchair access to the built-in premises on the 1st floor.

Structural and space-planning solutions

The level of responsibility of the building is normal. The residential building consists of 18 sections, divided by deformation-sedimentary seams into 11 blocks. Residential blocks are designed according to the wall structural scheme. The material of the above-ground load-bearing structures is monolithic reinforced concrete class B25; for outdoor structures F75. The material of load-bearing structures in the basement level is monolithic reinforced concrete class B25; F100; W8 - for the outer walls of the underground part; W4 - for the inner walls of the underground part. The spatial rigidity of the building is ensured by the joint work of transverse and longitudinal walls and pylons in combination with unchanging horizontal disks of reinforced concrete floors and roofing. Bearing walls of above-ground floors of residential sections - 180 mm thick (for 14-18 storey sections), 160 mm (for 7-12 storey sections); walls at the level of the basement and at the level of the first floor - 220 mm and 200 mm thick; pylons - section 270 x 1000 mm. Ceilings and roofing - monolithic reinforced concrete beamless slabs with a thickness of 250 mm (above the basement), 200 mm (above the first floor) and 180 mm (overlying ceilings and roofing) with thermal breaks in the area of ​​the balconies. External load-bearing walls at the basement level - monolithic reinforced concrete 220 mm thick with an outer layer of insulation. External non-bearing walls of residential sections are designed with floor-by-floor support on floors, multi-layer - from a layer of ceramic solid brick M100 on mortar M100 250 mm thick with insulation and cladding according to the ventilated facade system. Connection of layers and fastening of external non-bearing walls to the load-bearing structures of the building is provided by flexible connections. Structural solutions for fastening the ventilated facade system to the supporting structures of the building are developed in the working documentation in accordance with the current technical certificate of the Ministry of Regional Development of the Russian Federation. Stairs - prefabricated reinforced concrete marches with monolithic platforms. The walls of the elevator shafts are monolithic reinforced concrete, 160 mm thick. Fencing of balconies and bay windows - metal, with fastening to the supporting structures. Basement entrances and porch structures are made of cast-in-situ reinforced concrete, supported by residential block foundation structures. A two-level parking lot is a column-wall structural system. The car park building is divided into 5 blocks and separated from the residential sections by expansion joints. The car park blocks are designed from monolithic reinforced concrete class B25; W4; F100. Columns - section 500 × 500 mm; 500 x 400 mm and 400 x 400 mm. The main grid of columns is 8,0 × 8,1 m. The load-bearing walls of the car park are 200 mm thick. Overlapping of the parking lot - a monolithic reinforced concrete slab 250 mm thick; coating - monolithic reinforced concrete slab 350 mm thick. Solid flat floor slabs and car park covers are designed with the device in the area of ​​​​ordinary columns of capitals measuring 2500 x 2500 mm with a height of 700 mm (covering) and 500 mm (floor) and contour beams along the extreme columns with a section of 800 x 700 (H) mm. The structure of the floors and roofs of the built-in premises of the transformer substation is monolithic reinforced concrete slabs 180 mm thick. The design of the entrance ramps is an inclined slab 300 mm thick along the transverse beams and longitudinal walls. The spatial rigidity and stability of the parking lot blocks is ensured by the rigid connection of the columns with the foundation and the joint work of the walls and columns, united by the hard disks of the floor and cover. The static calculation of the supporting structures of the building was performed using the SCAD software package version 11.5, taking into account the joint operation of the building and the foundation, the mutual influence of neighboring blocks and in accordance with the requirements of STO 36554501-006-2006. The maximum design settlement of blocks of residential sections does not exceed 29 mm; parking blocks - 32 mm; the maximum horizontal displacement of the top of the sections is 54 mm, the acceleration of the oscillations of the upper floors is no more than 0,057 m/s2, which does not exceed the maximum allowable values. The structure of the parking lot is calculated taking into account the load from the fire engine. The relative mark of 0,000 corresponds to the absolute mark plus 3.80. The foundations of the residential sections and the underground car park are based on piles. Piles - prefabricated reinforced concrete driven, section 40 x 40 cm, length 7,0 ÷ 16,0 m and 20,0 m (composite). B30 class concrete; W8; F100, class A-500 fittings. The absolute elevation of the pile tip is taken from minus 7.00 to minus 16.30. The grillages of residential sections are designed in the form of monolithic reinforced concrete slabs 600 mm thick made of class B25 concrete; W8; F100. Parking lot grillages - in the form of monolithic reinforced concrete slabs 250 mm thick, with thickenings up to 900 mm (in the area of ​​pile clusters) made of concrete B25; F100; W8. Edge grillages are combined with central beams 600 ÷ 1000 mm wide. Pairing of piles with grillages is rigid. Under the grillages, concrete preparation is provided with a thickness of 50 mm over a layer of compacted sand of medium size with a thickness of 200 mm. At the base of the tip of the piles there are layers: EGE-8 - hard sandy loam (E=400 kg/cm2; e=0,300; IL=-0,5), EGE-9 - solid loams (E=200 kg/cm2; e=0,404; IL=-0,11), EGE-14a - dense sands of medium size (E=500 kg/cm2; e=0,450; =40º), EGE-15 - coarse dense sands (E=500 kg/cm2; e=0,450; =43º), EGE-17 - clays hard dislocated (E=220 kg/cm2; e=0,551; IL=-0,12) and EGE-18 - hard clays (E=380 kg/cm2; e=0,476; IL=-0,52). The allowable design load on the pile is assumed to be 160 tf according to the results of static tests of soils with driven piles, and 130 tf according to the results of static probing. Before mass driving of piles, to check the bearing capacity, tests of piles with a static load are provided. In order to protect concrete and protect the basement of underground structures of residential sections and parking from groundwater, the concrete grade for water resistance is W8, waterstops are provided in all technological joints, in expansion joints at the basement level - waterproofing profiles and coating waterproofing of external concrete surfaces in contact with soil. A tunnel sewer collector located at a distance of 30 m falls into the 26-meter risk zone for the construction of a residential building. In accordance with the technical and expert opinions made by PI Georeconstruction LLC and the City Expert and Consultative Commission on Foundations, Foundations and Underground Structures, according to the assessment of the mutual influence of the designed building and the existing tunnel sewer, no impact on the design of the collector is expected. The design documentation provides for geodetic monitoring at all stages of construction.