Architectural solutions

The land plot of the designed hangar section for aircraft maintenance with an annex is located in the northwestern part of the sector, between hangar No. 3 and the territory within the boundaries of the existing land allotment. The hangar building for aircraft maintenance consists of two blocks: a rectangular volume of a large-span hangar part with a pocket for retractable hangar gates and a lower five-story annex adjoining it. The facades of the hangar part are formed by smooth wall surfaces made of sandwich panels and translucent fiberglass planes. From the side of the predgarnaya square, the façade is unfastened by stepped planes of retractable fiberglass hangar doors with a glazing strip at the bottom. The opposite and side facades of the hangar part are designed using a large translucent fiberglass plane, the top of which is at the level of the top of the hangar gate, and two glazing planes at different levels. The facade of the hangar extension is dissected by the rhythmic step of square windows, united in pairs by colored inserts and two vertical stripes of stained-glass windows of stairwells, the protruding volume of the entrance group with a canopy, the active color of industrial gates. Two corporate colors orange and light silver were used in the color scheme of the hangar facades. The color scheme gives additional expressiveness and dynamism to the hangar, and the translucent material of the gate and upper glazing - modern lightness. The designed hangar is intended for maintenance and current repair of Boeing-777-300ER, Boeing-787-9, AZ30-300-200/300, Airbus 320F and consists of a hangar section for maintenance with a span of 78,0 m, a depth of 89,8 m with a pocket for hangar doors and extensions 85,9x18m in size. The hangar part and the extension are separated from each other by a deformation-sedimentary seam. The main load-bearing structures of the hangar part cover are steel trusses with a span of 78,0 m, a truss spacing of 6,0 m, and a height to the bottom of the trusses of 24,3 m. All load-bearing metal structures are protected with fire-retardant paint. The height of the hangar part to the top of the parapet is 33,1 m. On the north side in axes B-U, along axis 14, a 5-storey extension adjoins the hangar, which is designed to accommodate the production, storage, auxiliary, technical, sanitary and administrative premises required by the technology. The supporting structures of the extension are designed in a reinforced concrete frame, with beams with a span of 9,0 m, beam spacing - 6,0 m. Interfloor ceilings and coverings of the extension are cast-in-situ reinforced concrete. The height of the extension to the top of the parapet is 26,6 m. The enclosing wall structures of the hangar and extensions are sandwich panels with effective non-combustible insulation 120 mm thick in the hangar and 175 mm thick in the extension, painted at the factory. All parts of the building are roofed with an internal drain. Roof waterproofing carpet - membrane. There are two exits from the stairwells to the roof of the extension. Two vertical metal stairs are provided at the difference in the heights of the roof between the hangar part and the extension. Thanks to the use of translucent material in filling the gates, as well as light strips of this material on the other two facades, the hangar room has sufficient natural light. Premises with permanent jobs are also provided with natural light through windows in the outer wall. All other rooms have artificial lighting. Exterior and interior decoration of the building The exterior walls of the building are made of "sandwich" type panels and have full factory readiness and do not require additional finishing. The basement of the building is faced with ceramic granite tiles. The interior decoration of the premises of the building is provided with the use of modern finishing materials that meet technological, sanitary and hygienic and fire safety requirements. Ceramic tiles, acrylic and water-based paints are used in the decoration of the walls and partitions of the hangar extension. Ceilings - in administrative and amenity premises, vestibules and corridors, suspended plasterboard and metal lath, cassette, in technical premises are painted with water-based paint, enamels. The floors in the hangar are self-leveling on a reinforced concrete base with a hardened top layer. The design of the floor in the hangar must meet the following requirements: strength; wear resistance; non-sparking and incombustibility; dustlessness; resistance to oil products, hydraulic fluids and shock loads; high degree of light reflection; optimal roughness; ease of cleaning and washing, the floor must withstand shock loads (falling a load weighing 10 kg from a height of 1 m), the reflection coefficient of the floor covering must be at least 45%, the volumetric electrical resistivity of the floor covering must be no more than 106 ohm cm, the bearing layer of the floor made of concrete grade B25 and must retain its properties at positive and negative temperatures (from -40C to +40C). In the rest of the premises, the floors are concrete, self-leveling, as well as coated with linoleum, ceramic tiles. The wall separating the hangar from the extension is brick 250mm thick on the 1st floor and 120mm thick from the 2nd to 5th floors, followed by plastering and painting. Partitions - brick, gypsum fiber on a metal frame with filling the space between the sheets with mineral wool boards. Windows - aluminum with single-chamber and double-glazed windows and fiberglass. External doors - made of aluminum profiles. Internal doors - non-flammable premises - wooden, fire hazardous - metal with a normalized fire resistance limit. Gates - on the side of the platform in the wall of the hangar, a 4-section sliding gate with a total size of 75,2 x 23,0 m with an electric drive for opening and closing is provided, with an aluminum carrier frame and translucent filling. Through these gates, aircraft are delivered to the hangar with the help of tractors. In the panels of the hangar doors, in one of the wings, a 4,5x4,5m gate and a gate 1,0x2,1m for the passage of personnel are provided. In the opposite wall there is a gate for the exit of the tractor with a size of 4,5 x 4,65m, and a gate 1,0x2,1m for the passage of personnel.

Structural and space-planning solutions

The project documentation provides for the construction of: a hangar for the maintenance of Boeing-777 aircraft with a production annex; buildings for maintenance and repair of special vehicles; fire extinguishing pumping station, fire tank for storing water for automatic fire extinguishing; compressor room; covered area for special vehicles; wells of the drainage and drainage network; individual structures of the power supply system; rainwater wells and industrial sewerage. Hangar section for aircraft maintenance with an extension. The designed hangar consists of a hangar section and an extension. The hangar section and the extension are separated from each other by a deformation-sedimentary seam. The hangar section is one-story, rectangular in plan, frame structure. Dimensions of the hangar section in plan (in axes) - 78,0x89,8 m. The height to the bottom of the trusses is 24,3 m. Grid of columns - 6,0x78,0 m. The columns are rigidly connected to the foundations. Structural scheme - frame-bonded. The transverse frame is single-span with a span of 78 m. The crossbar of the frame is a truss truss. The truss-to-column connection node is articulated. The overall stability of the section is ensured by transverse frames and vertical braces arranged along the longitudinal rows of columns, when working together with the hard disk of the cover. To prevent progressive collapse along the columns at the level of the bottom of the trusses, an additional system of vertical ties is provided, which are included in the work of the frame in case of an emergency. The rigidity and geometric invariability of the coating elements is provided by a system of horizontal and vertical inter-farm ties. Columns - two-branched, steel from hot-rolled columned I-beams 40K2, steel grade C345-3, with a lattice of an equal-shelf angle. Farm - steel, upper and lower chords from hot-rolled columned I-beams 40KZ, steel grade C345-3. Lattice of double box-type channels, steel grade C255. Connections, spacers are taken from equal-shelf angles, steel grade C255. Runs are taken from channels, steel grade C255. The hangar is covered with corrugated board. Insulation mineral wool boards. Waterproofing carpet - membrane. Walls - hinged panels "sandwich" on steel fachwerk from bent profiles. The annex building is a five-story, rectangular in plan, frame structure. Dimensions of the building in plan (in axes) - 16,5x88,0 m. The grid of columns in the extension is 9,0x6,0 m and 7,5x6,0 m. The height of the 1st floor is 6,2 m, the height of the 2nd, 3rd, 4th floors is 4,2m, the height of the 5th floor is 6,25m. The load-bearing structures of the annex building are monolithic reinforced concrete. The structural scheme of the frame is frame both in the longitudinal and transverse directions. The structural scheme of monolithic reinforced concrete coatings and ceilings is a beam with slabs supported along the contour. The connection of columns with foundations and the connection of columns with longitudinal and transverse crossbars is rigid. The overall stability of the building is ensured by the longitudinal and transverse frames when working together with the hard disks of the roof and floors. Columns are made with sections 400x400 mm, 500x500 mm. Ceilings and roofing - monolithic reinforced concrete beams with slabs 180 mm thick, supported along the contour. Beam sections 400x500(h) mm and 400x800(h) mm. Concrete for the frame device is adopted on Portland cement VZO, W4, F100. The roof is flat combined, the insulation is mineral wool boards, the waterproofing carpet-membrane. The outer walls of the building are made of hinged panels "sandwich" on steel half-timbered structures made of bent profiles. Partitions - brick and frame-sheathing. Flights of stairs - monolithic reinforced concrete. Elevator shafts - monolithic reinforced concrete. The foundations for the columns are piled, prefabricated reinforced concrete piles with a section of 300x300 mm, a length of 12,0 m and 9,0 m. The grillages are monolithic reinforced concrete. Under the outer walls are provided - monolithic reinforced concrete foundation beams with a section of 400x500 mm, based on columnar grillages. The joints of piles with the grillage are rigid. The design load transferred to the pile is assumed to be 50,0 tons. The bearing capacity of piles is specified based on the results of static and dynamic tests. The depth of laying of grillages from the planning level is 2,5 m. Concrete for foundations is accepted B25, W8, F150.  Building for maintenance and repair of special vehicles. The building consists of two blocks: a one-story block of the production part and a four-story extension with a basement. The extension is separated from the production part by a deformation-settling joint. The block of the production part is one-story, rectangular in plan, frame structure. Block dimensions in plan (in axes) -72,0x54,0 m. The height to the bottom of the trusses is 7,2 and 8,1 m. The frame of the block is metal. Grid of columns - 18,0x9,0 m and 12,0x9,0 m. The structural scheme of the frame is frame-bonded. The transverse frame is 5-span with spans of 12,0 m and 18,0 m. The columns are rigidly connected to the foundations. Crossbars of the 5-span frame are truss trusses with parallel belts. The truss is hinged to the columns. The overall stability of a one-story block is provided by transverse frames and vertical braces arranged along the longitudinal rows of columns when working together with the hard disk of the cover. To prevent progressive collapse along the columns at the level of the bottom of the trusses, an additional system of vertical ties is provided, which are included in the work of the frame in case of an emergency. The rigidity and geometric invariability of the coating elements is provided by a system of horizontal and vertical inter-farm ties. Columns - steel from hot-rolled columned I-beams 40K1. Farm - steel, from equal-shelf corners. Beams - from hot-rolled I-beams 45B1. Ties, spacers are taken from equal angles. Runs are taken from hot-rolled channels and I-beams 35B1. Metal structures are made of steel grade C255. The covering is made on a professional flooring. Insulation mineral wool boards. Waterproofing carpet - membrane. Walls - hinged "sandwich" panels on steel fachwerk from bent profiles. The extension block is four-story with a basement, rectangular in plan, frame structure. Block dimensions in plan (in axes) -18,0x36,0 m. The grid of columns is 6,0x6,0 m and 4,5x6,0 m. The height of the 1st floor is 3,5 m, the height of the 2nd and 3rd floors is 3,6 m, the height of the 4th floor is 4,06 m, the basement is 3,15 and 3,3 m deep. The supporting structures of the extension are monolithic reinforced concrete. The constructive scheme of the frame is frame both in the longitudinal and transverse directions. The structural scheme of the roof and ceilings is beam with slabs supported along the contour. The connection of columns with foundations and the connection of columns with longitudinal and transverse crossbars is rigid. The overall stability of the 4-storey block is provided by longitudinal and transverse frames when working together with hard disks of the roof and floors. The foundations for the columns are piled, prefabricated reinforced concrete piles with a section of 300x300 mm, a length of 9,0 m and 7,0 m. The grillages are monolithic reinforced concrete. Under the outer walls are provided - monolithic reinforced concrete foundation beams with a section of 400x500 mm, based on columnar grillages. The joints of piles with the grillage are rigid. The design load transferred to the pile is assumed to be 60,0 tons. The bearing capacity of piles is specified based on the results of static and dynamic tests. The depth of laying of grillages from the planning level is 2,5 m. Concrete for foundations is accepted B25, W8, F150. The surfaces of grillages and foundation beams in contact with the ground are coated with hot bitumen twice over a cold bituminous primer. Fire pump station. Fire tank for storing water for automatic fire extinguishing. The building of the pumping station is one-story, rectangular in plan, frame structure. Dimensions of the building in plan (in axes) - 15,8x16,4 m. Height to the bottom of the beams - 4,2 m. The building is decided in a reinforced concrete frame. Column grid: 5,4x6,2 m; 5,6x6,2 m; 5,4x3,4 m; 5,6x3,4 m. The structural scheme of the frame is frame in the transverse and longitudinal direction. The structural scheme of the coating is a beam with slabs supported along the contour. Transverse frame - 2-span with spans of 12,4 m and 3,4 m. The longitudinal frame is single-span with a span of 16,4 m. The connection of columns with walls in the supporting part and the connection of columns with longitudinal and transverse crossbars is rigid. The overall stability of the building is ensured by the longitudinal and transverse frames when working together with the hard disk cover. Columns - reinforced concrete section 400x400 mm. Cover beams are designed with a height of 1000 mm and 500 mm. The coating slab is made with a thickness of 180 mm. The roof is flat, insulated with mineral wool boards, waterproofing carpet-membrane. Walls - aerated concrete blocks, lined with cassettes of composite material on a subsystem of galvanized steel, insulated with non-combustible mineral wool insulation. The underground part of the pump house is made in the form of a buried structure under the entire building. The foundation slab and the walls of the underground part are designed as monolithic reinforced concrete 400 mm thick from concrete B25, W8, F150. The foundation footing mark is minus 3,300. The fire-fighting water reservoir is a recessed structure of a rectangular shape in plan with an embankment. Tank length 12 m, width 6,0 m. The height from the top of the bottom to the bottom of the floor slabs is 3,95 m. The total height of the embankment is assumed to be 1000 mm. The main load-bearing and enclosing structures of the structure (bottom, walls and ceilings) are monolithic reinforced concrete 300 mm thick. The overlap is supported on the outer walls. Concrete in monolithic reinforced concrete structures B25, W8, F150 on Portland cement. The overall stability of the structure is ensured by longitudinal and transverse walls rigidly connected to the bottom and ceiling, and a floor disk that is rigid in the horizontal plane.  Compressor. The building is one-story, rectangular in plan, frame structure. The overall dimensions of the building in the plan are 6x24 m. The height to the bottom of the beams is 6,26 m. The frame of the building is metal. Grid of columns 6x6 m. Structural scheme - frame-braced. The transverse frames are single-span, the span is 6,0 m. The overall stability of the building is ensured by the transverse frames and vertical braces arranged along the longitudinal rows of columns when working together with the hard disk of the roof. Columns - steel from hot-rolled I-beams 30K. Beams - steel from rolling I-beams 35B1, 35Sh1. The coating is carried out in a multi-layer layer-by-layer assembly on a steel profiled flooring. Under the entire building of the compressor room, a monolithic reinforced concrete slab 400 mm thick with under-columns with a section of 900x900 mm was designed. A monolithic reinforced concrete wall with a thickness of 170 mm and a height of 1,1 m is provided along the perimeter of the foundation slab. The depth of foundations from the planning level is 1,5 m. Concrete in monolithic reinforced concrete structures B25, W8, F150 on Portland cement.