Architectural and space planning solutions

 The project documentation provides for the construction of a residential building, consisting of two sections and an elevated parking lot for 100 cars. Multi-apartment residential building - 25-storey consists of two sections A and B. Section A has dimensions in the extreme axes - 36.8 x 15.3 m, section B - 44.0 x 18.0 m. The sections have a height from the planning mark of the ground to the top of the parapet - 77.63 m. For a relative mark of 0,000, the mark of the top of the basement floor slab is taken. The sections have a basement, 25 residential floors and an attic with a height of 1.79 (clear). The basement of the sections provides for the placement of engineering and technical premises (pumping rooms, a water metering unit, a cable entry room) and the laying of engineering networks. The height of the basement from the floor to the bottom of the floor slab is 2,6 m. On the 1st floor of the sections, an entrance group is provided, including a vestibule, a room for cleaning equipment, an electrical panel room, an elevator hall, rooms for a waste collection chamber and apartments of various layouts. On the 1st floor of section A there are control rooms with a bathroom, which has a separate exit. On the 1st floor of section B, rooms for storing fluorescent lamps and a pram room are designed. The height of the 1st floor is 2,97 m. From the 2nd to the 25th floor, apartments of various layouts were designed in accordance with the design assignment. The height of the residential floor is 2,8 m. The building has an attic with a height of 1.79 m. Each section provides for the placement of a stair-lift assembly, including an H1-type stairwell with direct access to the outside and three elevators: one for passenger and two for cargo-passenger, one of which is designed for transporting fire departments. Above the stair-lift assembly, a superstructure with a machine room for elevators with an entrance from the attic space is provided. Visors are provided above the porch of the entrance groups. The sections are equipped with a garbage chute and a garbage collection chamber located on the 1st floor of the building. The exit from the garbage collection chamber is separated from the entrance to the residential part of the section by a blank wall. Walls - decorative plaster with a paint on a heater, from a front mineral-cotton plate. Basement and 1st floor - cladding with artificial stone of the Melikonpolar type. The railings of the balconies of the smoke-free staircases are metal, painted with waterproof paints. Fencing of balconies and loggias of apartments - stained glass windows in an aluminum profile. Covering - flat, combined, with an internal drain, roofing - rolled. Exit to the roof - from the volumes of stairwells. Windows and balcony doors - metal-plastic blocks with double-glazed windows. Finishing of apartments and general premises is carried out in accordance with the purpose of the premises. Partitions are reinforced concrete and tongue-and-groove aerated concrete. The projected four-storey car park of closed type is an unheated building, rectangular in plan, with dimensions in the extreme axes of 36,4 x 23,4. The height of the floor is 3,0 m. The height of the building from the ground level to the parapet of the roof superstructures is 15,6 m. Each floor of the car park consists of 2 semi-floors connected by two single-track ramps. The following premises have been designed in the building of a multi-storey car park: premises for car storage for 100 cars, engineering and technical premises (pumping room, water metering unit), a security room with a bathroom, and a room for cleaning equipment. A ventilation chamber is prohibited on the roof of the parking lot. To ensure communication between floors and evacuation, the following are provided: 2 stairwells of L1 type, which have direct access to the street. To move cars between floors, the parking lot is equipped with ramps with a slope of no more than 15%. The roof is rolled, the covering is pitched, the drain is external, organized. There is a fence on the roof. The facades of the building are made of sandwich panels with a polymer coating on a metal frame. Filling window openings - metal-plastic window blocks with single-chamber double-glazed windows. Gates - lifting and sectional. The basement of the building is lined with artificial stone. Partitions are designed from sandwich panels, gypsum plasterboard on a metal frame, profiled sheet. Interior decoration is carried out in accordance with the functional purpose of the premises. The design documentation provides for measures to ensure the life of the disabled and people with limited mobility, including unhindered access to all apartments in the residential part of the building. For MGN access from the ground level to the 1st floor of the building to the apartments and the elevator hall, it is planned to install ramps and install lifts in each section. Disabled parking spaces are provided on the property.

 Structural and space-planning solutions

 The structural scheme of a two-section twenty-five-story panel residential building is a cross-wall system with load-bearing internal transverse and longitudinal walls and with hinged longitudinal external walls. The basement and first floor structures are made of monolithic reinforced concrete. The outer walls of the basement are made of monolithic reinforced concrete 300 mm thick, in the blind area - with a cantilever. Walls - with external insulation with a layer of extruded polystyrene foam 100 mm thick, above the blind area - finished with Melikon-Polar concrete stone 120 mm thick. Concrete B25, W8, F150, class A500C reinforcement. The outer walls of the first floor are made of monolithic reinforced concrete 200 mm thick, insulated with Rockwool slabs 150 mm thick and finished with Melikon-Polar concrete stone 60 mm thick. Fastening of insulation to reinforced concrete - with dish-shaped dowels, fastening of concrete stone to reinforced concrete - with steel anchors with a corrosion-resistant coating. Concrete B25, W8, F150, class A500C reinforcement. The internal walls are made of monolithic reinforced concrete, in the basement - 300 mm thick, in the first floor - 200 mm thick. Concrete B25, reinforcement class A500C. Ceiling above the basement and first floor - continuous slabs of monolithic reinforced concrete 200 mm thick. Concrete B30, reinforcement class A500C. Sections of slabs in the area of ​​balconies and loggias made of concrete B30, W4, F200. The structures of the pits and porches are made of monolithic reinforced concrete supported by a grillage. Concrete B25, W8, F150, class A500C reinforcement. The building above the first floor was designed from products manufactured by CJSC DSK "BLOK". Non-bearing external walls - prefabricated reinforced concrete hinged panels 120 mm thick, insulated with mineral wool slabs 150 mm thick, finished with a thin plaster layer according to the Bolix M1 system (TS No. 2865-10) with painting. The insulation is attached to the panels with dish-shaped dowels. Concrete B15, F100. The step of expansion joints in the plaster layer is taken in accordance with the technical certificate. The heat-insulating facade system adopted in the project documentation must be developed at the stage of "working documentation" and have the appropriate valid technical certificate of the Ministry of Regional Development of the Russian Federation. Bearing external walls - prefabricated reinforced concrete panels 160 mm, insulated with mineral wool slabs 150 mm thick and finished with a thin plaster layer with painting. Concrete B22,5, F100. Bearing external walls in the area of ​​the expansion joint - three-layer reinforced concrete panels with a total thickness of 420 mm, with an outer layer 60 mm thick (concrete B22,5, F100, W4), with a middle layer of expanded polystyrene insulation with a density of 50 kg / m3, a thickness of 200 mm and an inner bearing layer 160 mm thick (concrete B22,5). Horizontal joints of load-bearing panels of internal and external load-bearing walls are platform joints with the use of vertical fixation elements, with steel corners fastened to the embedded parts of the panels by welding. Horizontal mortar joint - 20 mm thick with cement-sand mortar M200. The transfer of forces to the underlying panel is through the floor slabs. Vertical joints of load-bearing wall panels are keyed, with welding of steel angles and plates to the embedded parts of the panels (in two levels along the height of the floor), along the top - with welding of steel plates. Concreting of a joint 100 mm wide - with fine-grained concrete B22,5 (from the 9th floor and above - with concrete B15). Sealing of embedded parts of panels and connecting plates, seams 20 mm thick - cement-sand mortar M200. Internal walls of floors 2-8 - prefabricated reinforced concrete panels 200 mm thick (B30 concrete), from floors 9 to 18 - 160 mm thick (B22,5 concrete), above - 160 mm thick (B15 concrete). The step of the transverse walls is from 2,04 to 4,8 m. Panel ends - with dowels 55 mm deep and 80 mm wide. Partitions: prefabricated reinforced concrete panels - 80 and 60 mm thick; from brick - 120 and 250 mm thick; from tongue-and-groove gypsum boards - 80 mm thick. Ceilings and roofing - prefabricated reinforced concrete flat slabs 160 mm thick, rigidly connected to balconies. Concrete B22,5, F100 (for balcony slabs B22,5, F200, W4). Supporting floor slabs on wall panels - on two and three sides to a depth of 90 mm (on walls 200 mm thick) and 70 mm (on walls 160 mm thick), welding them together with steel plates 6 mm thick or reinforcing anchors with a diameter of 12AI, which perceive the forces acting in the plane of overlap. Filling the supporting joint - cement-sand mortar M200. Elevator shafts - prefabricated volumetric reinforced concrete blocks with a wall thickness of 120 mm, separated from the building structures by a seam, the width of which is taken in accordance with the magnitude of the horizontal movement of the building. Ventilation blocks - voluminous prefabricated reinforced concrete. Elements of stairs - prefabricated reinforced concrete marches and platforms. Balconies and loggias of apartments - with hinged stained-glass windows made of aluminum profiles "Avangard". Loggia stairs - with steel railings. The spatial rigidity and stability of the building sections is ensured by the joint work of the transverse and longitudinal walls in combination with floor disks. All prefabricated elements produced by CJSC DSK "BLOK" correspond to the loads of an individual residential building. The length of the residential building is separated by a temperature-sedimentary seam. The constructive scheme of the multi-level car park is frame, the ventilation chamber premises are frame-bonded. The supporting structures of the parking lot are made of monolithic reinforced concrete, the above-ground structures are made of concrete B25 and the working reinforcement A400, A240, the underground structures are made of concrete B25, F150, W4 and the working reinforcement A400, A240, the frame of the ventilation chamber is steel. Columns of the building - from monolithic reinforced concrete with a section of 400 x 400 mm, below mark 0,000 - with a section of 500 x 500 mm, with a maximum step of 7,8 x 7,8 m. Racks in the ventilation chamber - from steel closed bent-welded profiles. The car park ceilings are continuous slabs of monolithic reinforced concrete 150 mm thick on a system of cross beams with a section of 500 x 600 (h) mm. Strapping beams - with a section of 300 x 600 (h) mm. Overlapping in the ventilation chamber room - a slab of monolithic reinforced concrete with a total thickness of 157 mm in a fixed formwork of H57 profiled flooring. Ramps - from prefabricated reinforced concrete hollow-core slabs 220 mm thick supported on reinforced concrete and steel beams from rolled I-beams 25B1. The steel beams of the ramp are hinged to the embedded parts of the reinforced concrete columns. The parking lot is covered with sandwich panels 80 mm thick along steel purlins made of rolled channels (the spacing of purlins is not more than 2,6 m) and steel beams made of rolled I-beams 35B2 and 50B1. Cover steel beams - continuous (joining along the length - hinged outside the zone of supports), with hinged support on reinforced concrete columns along the top. The outer walls of the car park are sandwich panels 100 mm thick. Stair elements: marches - prefabricated reinforced concrete steps; platforms - from monolithic reinforced concrete 80 mm thick, supported by steel stringers from rolled channels No. 24u. Steel stringers - with hinged attachment to the embedded parts of monolithic floor beams and hinged support on the steel beams of the platforms. The length of the car park building is divided by an expansion joint. The spatial rigidity and stability of the parking lot is ensured by the rigid coupling of all reinforced concrete elements of the skeleton and the joint work of the frame with the hard disks of the floors. Calculations of the structures of a residential building were performed using the MicroFe 2012 software package, by the method of equivalent replacements, taking into account: the pulsating component of the wind load; joint work of the above-ground part of the building and foundations; mutual influence of neighboring blocks.