Architectural solutions

The designed 4-section 5-storey residential building was developed in the 111M construction system. The project is designed for the use of industrial products of the 111M construction system, which are produced in a complete set by reinforced concrete factories. For mark 0,000 is the mark of the finished floor of the first floor, which corresponds to the absolute mark of 133,40m. The spatial rigidity and stability of the building is ensured by the joint operation of fixed floor hard disks and a cross system of load-bearing internal, as well as load-bearing and hinged longitudinal and transverse external wall panels. The residential building has a rectangular shape in plan, consisting of four 5-storey sections: 2-row-end 21,0x15,0 m, 2-row 27,0x15,0 m. Stairwells type L1 access to all floors, technical floor and roof. All apartments have balconies provided with sedimentation tanks - blind sections of the outer walls with a width of at least 1,2 m. The height of the building from the surface of the passage of fire trucks to the lower edge of the opening window of the upper floor is 13,40 m. The facades are finished in accordance with the color passport. External wall panels of floors 1-5 are made for painting in construction conditions. Window openings - 2-chamber double-glazed windows in PVC bindings. The roof is flat with an internal drain. Coating - rolled from 2 layers of "Technoelast" production of the company Technonikol; with the following layers: the top layer of TKP - 4,5 mm with a frame made of fiberglass with a sprinkle of crumbs (weight = 4,5 kg/m2); lower layer of CCI - 4,0 mm - 1 layer with a frame made of fiberglass (weighing = 4,0 kg/m2); screed - asphalt concrete 40 mm reinforced with a mesh of reinforcement ∅5Vr1 with a cell of 150x150 mm over a layer of construction sand; insulation - from extruded polystyrene foam "Technoplex-35" with a flammability limit of G1, thicknesses. 50 mm above the technical floor and 100 mm - above the engine room of the elevators and the stairwell, roof slopes are created by additional layers of insulation, adding expanded clay gravel γ=400 kg/m3. In the third section of the technical underground there is a room for a water metering unit for entering and accounting for cold water. The room for cleaning equipment, equipped with a sink and a paddon, is located in the first and fourth sections of the technical underground. The individual heating point (ITP) is located in the fourth section. The technical underground has two isolated exits directly to the street. The switchboard is located on the first floor in the 2nd block section with direct access to the street. The floor height of a residential building is assumed to be 2.8m. The height of the premises in cleanliness: technical underground - 2,59m, 1st floor - 2,56m, from the 2nd to 5th floors - 2,59m, warm attic - 2,17m. A watering tap is provided on the facade of the building (in the first and last sections). In a residential building. Each section has a central double vestibule. For lifting wheelchairs, ramps are provided in front of the entrance to each section. The entrance platform in front of the entrance to the building is equipped with a canopy and a drainage system. The interior decoration of apartments in a residential building is provided for according to social norms: walls and partitions of living rooms, hallways, storerooms - wallpaper of improved quality; walls and partitions of the kitchen - water-resistant wallpaper of improved quality and ceramic tiling of the working front above the kitchen sink with elev. 0,75m to el. 1,35m; bathrooms - water-based paint; vestibules, lobbies, stairwells - water-based paint in warm light colors to the full height from the "boot"; "boot" - ceramic tiles 150 mm high. Floors: The floors of the first floor are insulated with rigid hydrophobized mineral wool slabs Floor Butts (TU 5762-012-45757203-02) based on basalt rocks γ = 140 kg/m2 produced by ROCKWOOL (Russia), reinforced cement-sand screed -40 mm ; other floors - cement-sand screed -50 mm; apartments (living rooms, corridors, kitchens, bathrooms) - foam-based linoleum; vestibules, landings, vestibule of entrances to the entrance - ceramic tiles; vestibule of entrances to the entrance - ceramic tiles; Ceilings: embroidered water-based paint in white. Rated natural lighting is provided in all rooms, through window openings, except for bathrooms, intra-apartment corridors, and floor corridors outside the apartment. Window openings are selected in such a way that the ratio of the area of ​​light openings to the floor area of ​​these premises is at least 1:8. The main sources of noise in a residential building are technological and engineering equipment. To ensure an acceptable noise level, sanitary appliances and pipelines are fastened directly to the walls and partitions separating the bathrooms and non-residential premises of the apartment. The site for the construction of a residential building is located far from the main streets, railway lines, industrial and energy enterprises, shops.

Basic design solutions

When performing calculations and making basic design decisions, the certified software package "SCAD Office 11.5" was used, which implements the finite element method. The spatial rigidity and stability of the building is ensured by the joint operation of fixed floor hard disks and a cross system of load-bearing internal, as well as load-bearing and hinged longitudinal and transverse external wall panels. The 111M construction system uses industrial products and their connection units, which prevent the possibility of a progressive collapse of building structures. The project is designed for the use of industrial products of the 111M construction system. The main design solutions adopted in the project: foundations - a monolithic reinforced concrete slab njo / 400vv made of concrete grade B25, W6, F75; technical underground walls - three-layer panels 400 thick with insulation made of slab polystyrene foam according to grade PSBc 35 according to GOST 15588-86 thickness. 150 mm and enclosing layers of concrete class B30; external walls - three-layer panels 400 and 350 mm thick; panels with a thickness of 400 are load-bearing for the entire height of the building with insulation made of slab polystyrene foam according to grade PSBc 35 according to GOST 15588-86 thicknesses. 150 mm and enclosing layers (connection of layers - on flexible non-concrete metal ties) of class B25 concrete - for panels 1-5 and the technical floor; three-layer longitudinal panels with a thickness of 350 mm, bearing in the area of ​​​​the walls of the 1st floor with a heater made of slab polystyrene foam according to the brand PSBc 35 according to GOST 15588-86, thicknesses. 150 mm and enclosing layers of class B25 concrete for panels 1-5 and the technical floor; internal walls - flat solid load-bearing reinforced concrete wall panels of horizontal molding thickness. 200, 160 mm for the technical underground with holes for the passage of communications are made of class B30 concrete; internal walls for 1-5 and the technical floor made of B25 class concrete, 160 mm thick (for the technical floor with holes for passing horizontal engineering communications); flooring and covering - flat solid reinforced concrete slabs 160 mm thick made of class B25 concrete with holes for passing vertical communications. Various industrial products: side walls of loggias - flat solid reinforced concrete thicknesses. 180 mm of B30 class concrete for the technical underground; for the remaining floors of concrete class B25; landings - flat solid reinforced concrete thicknesses. 160 mm from concrete class B25; flights of stairs - reinforced concrete from B30 class concrete; ventilation blocks, electrical panels - reinforced concrete hollow from B25 class concrete; loggia fencing elements (screens) - reinforced concrete from B25 class concrete; partitions in sanitary cabins are made in construction conditions from phosphogypsum small-sized, moisture-resistant tongue-and-groove plates according to TU 21-36-12-83; intra-apartment partitions - building erection from phosphogypsum small-sized tongue-and-groove slabs according to TU 21-36-12-83; the roof is flat with an internal drain; roofing - rolled from 2 layers of Technoelast, manufactured by TechnoNIKOL; with the following layers: the top layer of TKP - 4,5 mm with a frame made of fiberglass with a sprinkle of crumbs (weight = 4,5 kg/m2); lower layer of CCI - 4,0 mm - 1 layer with a frame made of fiberglass (weighing = 4,0 kg/m2); screed - asphalt concrete 40 mm reinforced with a mesh of reinforcement ∅5Vr1 with a cell of 150x150 mm over a layer of construction sand; insulation - from extruded polystyrene foam "Technoplex-35" with a flammability limit of G1, thicknesses. 50 mm above the technical floor and 100 mm - above the engine room of the elevators and the stairwell, the roof slopes are created by additional layers of insulation from the expanded clay gravel bedding γ=400 kg/m3; windows in PVC profile with double-glazed windows; Alcon doors - PVC profile with double glazing; exterior doors - individually made metal, insulated (nitro enamel painting) are equipped with intercom communication and automatic closers; vestibule - wooden in accordance with GOST 24698-81, insulated, sheathed with a lacquered lath, with sealed porches and a self-closing system; internal doors - according to GOST 6629-88; exterior finish - painting in accordance with the passport of the color scheme of the facades. Based on the engineering and geological conditions of the site, the foundations were adopted in the form of a monolithic reinforced concrete slab. Under the monolithic slab, concrete preparation is provided from concrete of class B7.5 with a thickness of 100 mm. For concrete preparation, gluing waterproofing is carried out from 2 layers of Filizol, a protective c / sand screed 30 mm. The following materials are accepted for the installation of a monolithic w / slab: concrete class B25; F75; W6; fittings of class A500C according to GOST R52544-2006 and class A240 according to GOST 5781-82. Reinforcement of the monolithic structure is made by separate rods. The outer walls of the technical underground are three-layer panels 400 thick with insulation made of slab polystyrene foam according to the brand PSBc 35 according to GOST 15588-86, thicknesses.