Architectural and space-planning solutions

The designed facility is a multi-apartment multi-section residential building of different heights with an attached parking lot, which forms the letter “P” in plan. An attached underground parking lot has been designed in the yard part. At the level of the 1st floor, open terraces are designed - front gardens with a fence 1,2 m high, forming the structure of the yard. The terrace mark is 150 mm above the ground level, a balcony door is provided for access to the terrace, the bottom mark of the door is 200 mm higher than the terrace mark. Landscape design and small architectural forms are designed in the yard space. For a conditional mark of 0,000, the level of the finished floor of the first floor is taken. An apartment building with a basement consists of 8 residential sections of different heights - from 5 to 9 floors - with an attached parking lot for residents' cars. The maximum height parameters of permitted construction for the facility are 33,0 meters. The maximum height of the designed multi-apartment residential building from ground level to the top of the building parapet is 29,90 m; to the top of the parapet of the staircase - 30,88 m. The height of the basement of a residential building is 3,5 m. The cellar and the car park are at the same mark - 3,850. In the basement, the premises of an individual heating point (ITP), a pumping switchboard, a cable room and ventilation chambers were designed. All elevators go down to the basement. Thus, through a vestibule with air overpressure, residents have the opportunity to get to the parking lot, separated from the basement premises by fire doors EI 30'. The entrance to the basement is provided from the side of the street through the entrance pits. On the first floor, technical and office premises are also designed, including: a concierge room, a management company room. To remove garbage on the 1st floor of each residential section, garbage collection chambers are designed from the side of the outer facade. At the request of the Customer, a garbage chute is not provided in the residential building. The garbage collection chamber has an independent exit from the building from the side of the street, isolated from the entrance to the building by a blank wall, and is equipped with a sink and a ladder. On the instructions of the customer, a walk-through hall was designed in the building with access to the courtyard area. The height of floors 1-9 (from floor to floor) is 3,0 m. The height of the basement rooms is 3,5 m. premises. The covering of residential sections is flat, the roof is rolled. The roof of the car park is of the inverted type. Drainage from the roof of the building - to the internal drain. External walls (non-load-bearing): prefabricated prefabricated reinforced concrete single-layer panels with Plaster Butts insulation and decorative mesh plaster. Plinth: three-layer reinforced concrete sandwich panel; the finish of the plinth varies in different areas: a plinth made of concrete, artificial stone in a light color along Gubina street, a plinth made of concrete structured like a brick and a plinth made of artificial stone and concrete. The basement has different heights - from 0,8 m to 4,0 m. Partitions interroom - from plaster tongue-and-groove plates. Finishing floors, walls, ceilings is provided depending on the purpose of the premises. The type of filling the window opening is a single window block with a double-glazed window. Disabled access to the building is provided from the courtyard part of the building or from the roof mark of the attached parking lot (parking). Access for people with limited mobility and disabled people in wheelchairs to the courtyard area is provided using a vertical lift equipped with a control panel. From the lift at a distance of 35 meters there is a special parking space for disabled vehicles measuring 3,6 x 5,5 m, which is as close as possible to the entrance to the building. The platforms at the entrance to the building are designed with a canopy. The accessibility of the elevator hall on the first floor of the residential part for the disabled in wheelchairs from the level of the yard is provided. In the car park (parking) 10 places are allocated for the transport of disabled people, including two specialized places for vehicles of disabled people in a wheelchair measuring 3,6 x 5,5 m, provided next to the emergency exit between axes 3,5 and along axis B / A.

Structural and space-planning solutions

The level of responsibility of the building is normal. The residential building consists of eight sections of different heights, divided by sedimentary seams into four blocks. The underground car park in the courtyard of the building is separated from the residential building by sedimentary seams. The structural scheme of the sections is a cross-wall system with prefabricated monolithic structures. The spacing of the transverse walls is irregular, 2,8 ÷ 6,2 m. The basement is designed in monolithic reinforced concrete structures with wall thicknesses of 160 and 200 mm. Ceilings and roofing - flat beamless monolithic reinforced concrete slabs 200 mm thick. In the area of ​​balconies in the ceilings, a perforation device filled with effective insulation is provided to prevent freezing. Starting from the ground floor and above, the vertical load-bearing structures of the sections are internal prefabricated panels with a thickness of 160 mm and end prefabricated panels with a thickness of 160 mm. The outer walls of the sections along the longitudinal axes are hinged non-bearing prefabricated reinforced concrete panels 100 mm thick. The outer walls are designed with insulation and facade finishing with decorative grid plaster. The vertical joint of the load-bearing panels is rigid, keyed and looped, with joints sealed with fine-grained concrete. Vertical joint of outer non-bearing panels with internal load-bearing panels - contact, with welding of protruding plates from the outer panel in the upper zone to the embedded parts of the internal wall panels. Coupling of load-bearing wall panels and ceilings - in the form of a platform joint. Construction material: monolithic walls and basement floor slab - class B25 concrete; F100; W8; monolithic ceilings - class B25 concrete; F100; W6; prefabricated reinforced concrete structures: external load-bearing panels - class B25 concrete; F75; external self-supporting panels - class B20 concrete; F75; internal panels - class B25 concrete; fittings of class A500C. The spatial rigidity and stability of the sections is ensured by the joint work of vertical load-bearing elements, united by hard disks of interfloor floors. The static calculation of the load-bearing structures of the building was performed using the SCAD 11.5 software package using the finite element method. The relative mark of 0,000 corresponds to the absolute mark of 15.40. The foundations of the residential sections and the parking lot were designed on the basis of engineering and geological surveys carried out at the construction site in 2012. The foundations of the sections are monolithic reinforced concrete strip grillages 700 mm high on a pile foundation. The grillage material is B25, F100, W8 class concrete, A500C class reinforcement. The connection of piles with grillage is rigid. Piles - prefabricated reinforced concrete section 35 x 35 cm, length 16,0 m from concrete class B25, F100, W6. At the base of the piles at an absolute mark of minus 4.50 lie dusty gray sandy loam with gravel, pebbles, with interlayers of sand, with boulders, solid, E = 230 kg / cm2, IL = - 0,18. The design load on the pile is 90 tf, based on the results of static sounding of soils. The expected draft of the sections is 2,0 cm. The car park is designed as a separate underground structure and is separated from the sections of the residential building by a settlement seam. The parking lot is a system of rigidly interconnected monolithic reinforced concrete foundations, columns, walls and roofing. External walls - 200 mm thick; columns - with a section of 500 x 500 mm, reinforced at the interface with pile foundations with a haunch with a section of 300 x 300 mm, the main grid of columns is 8,1 x 17,1 m. covering beams at the manufacturing stage. Cross section of beams 1620 x 800 (h) mm; plate thickness - 200 mm. The calculation of the load-bearing structures of the car park was carried out using the SCAD 11.3 software package. The structure of the parking lot is calculated taking into account the load from the fire engine. Car parking structure material: walls and columns - B40 class concrete; W8; F200; coating slab - class B40 concrete; W6; F200; fittings of class A500C; ropes with tension on concrete. The foundations of the car park are piled, with columnar under columns and tape under the walls monolithic reinforced concrete grillages 700 mm high. Concrete grillages B30, W8, F200. The connection of piles with grillage is rigid. Piles - prefabricated reinforced concrete with a section of 35 x 35 cm, a length of 16,0 ÷ 17,0 m, made of concrete of class B25, F100, W6. At the base of the piles at absolute elevations of minus 4.45 ÷ minus 5.45, there are light silty gray loams with gravel, pebbles, with interlayers of sand, with boulders, solid, E = 200 kg/cm2, IL = - 0,16. The design load on piles 90 ÷ 100 tf is taken from the results of static sounding. The expected settlement of the car park is 1,0 cm. The project documentation provides for testing the piles with a static load before the start of construction, followed, if necessary, by adjusting the pile field. Waterproofing of the premises of the basements of sections and parking from groundwater: the use of concrete of a higher grade for water resistance, coating waterproofing of surfaces in contact with the ground, the use of waterproofing gaskets in the working seams of concreting. Constructive solutions for a residential building are developed taking into account the location of the building in the existing building. Building surveys completed. Buildings - different years of construction, 2 ÷ 4-storey, brick, with strip rubble foundations on a natural foundation. Ceilings - mixed type: wooden and prefabricated reinforced concrete on wooden and steel beams, coverings - a wooden truss system. Buildings are assigned to the third category of the technical condition of structures according to TSN 50-302-2004. The assessment of the geotechnical situation at the construction site and the impact of construction on the surrounding buildings was carried out using the Plaxis software package.