Architectural and space-planning solutions

Design documentation has been developed for the construction of an apartment building with built-in premises (hereinafter referred to as a residential building) and a separate multi-storey garage (parking lot). A residential 6-section building of a variable number of storeys, L-shaped in plan with a basement under the entire building and an upper technical floor in each section, is located on a territory free from development. The second and fourth sections have a through passage. The height of the basement floor is designed to be 2,7 m. The height of the built-in premises of the 1st floor is designed to be 2,8 m. The height of residential floors is designed to be 2,8 m. The height (in cleanliness) of the premises of the upper technical floor is 1,8 m. The level clean floor of the inter-apartment corridor on the first floor of a residential building. The greatest height of the vertical plane of the facade from the planning ground level (-0,000) to the top of the building's eaves is 0,650 meters. The underground floor (basement) is located under the entire building, divided into fire compartments and designed for cable rooms, ITP, water metering unit, pump fire extinguishers. Electrical panels are located on the 1st floor of the building. On the ground floor of the building, built-in non-residential premises (notary's office, office premises of the HOA, premises of a fruit store, premises of a grocery store), residential premises (apartments), vestibule groups and technical premises of a residential building are designed. On all overlying floors residential premises - apartments are designed. The technical attic (technical floor) is located on the 26th and 20th floors, respectively. The machine room of the elevators and the stairwell protrude from the roof plane. For evacuation and communication between floors in each section of the building, 1 non-smokeable staircase of the H1 type was designed (exit to the staircase from the floor through the outer air zone). Exits to the roof are designed from each staircase. At the height differences of the roof in each section, the installation of metal fire escapes is provided. Each section has its own entrance/exit from the staircase and its own entrance/exit to the lobby/elevator unit. In each 26-storey section, two passenger elevators with a carrying capacity of 630 kg and one passenger elevator with a carrying capacity of 400 kg are designed. In each 20-storey section, one passenger elevator with a carrying capacity of 630 kg and one passenger elevator with a carrying capacity of 400 kg are designed. In each section, one lift with a carrying capacity of 630 kg is designed to transport fire departments. Waste collection chambers are designed in the building. Built-in rooms have independent entrances and exits. The exterior walls of the building are designed in several types. The walls of the basements of all sections up to the planning level of the ground are monolithic reinforced concrete with thermal insulation from extruded foamed polystyrene foam slabs, higher up to the level of 0,000 - monolithic reinforced concrete with thermal insulation from extruded foamed polystyrene foam slabs with a finishing layer of Melikonpolar wall stone. The walls of the first floor are monolithic reinforced concrete with thermal insulation from mineral wool slabs with a finishing layer of thin-layer plaster and prefabricated reinforced concrete products manufactured by CJSC DSK Blok; the overlying floors are made of prefabricated reinforced concrete products manufactured by ZAO DSK Blok. The walls of the remaining sections of the building are made of prefabricated reinforced concrete products manufactured by ZAO DSK Blok. Internal walls - reinforced concrete panels and monolithic. Internal partitions - from tongue-and-groove gypsum blocks and brick. The walls between the apartments and the stairwell and in the places where the bathrooms adjoin the living rooms are double, made of prefabricated reinforced concrete products and tongue-and-groove gypsum blocks through a mineral wool slab. Partitions of built-in and technical premises are made of brick. Windows and balcony doors - metal-plastic with double-glazed windows with built-in air inlets. Windows and entrance doors of the built-in premises are metal-plastic with single-chamber double-glazed windows. Stained-glass windows and glazing of balconies and loggias - a stained glass system of the Tatprof type with single glazing. Doors - metal and wooden, glazed and deaf, fire-resistant and conventional. Covering (roof) - flat, insulated, with a roof made of rolled materials, in some places with a protective layer of paving slabs. The drain is internal. In the decoration and details of the facades, colored decorative plaster, artificial stone and porcelain stoneware are used. Prefabricated reinforced concrete facade products manufactured by CJSC "DSK Blok" are partially supplied with a finishing layer. The premises of the residential floors are designed with full finishing and equipment. Interior decoration of the premises and flooring are designed in accordance with the purpose of the premises: floors - mosaic, cement-concrete, ceramic tiles, TZI linoleum; walls - grout or plaster, followed by painting with water-dispersed paints; ceramic tile; wallpaper; ceilings - water-dispersed or adhesive paint; hemmed ceilings - slatted; Acoustic suspended and false ceilings - acoustic slabs on a metal frame with mineral wool filling of voids. Measures are envisaged to ensure the accessibility of the building for the disabled and people with limited mobility. The entrances to the built-in premises are equipped with a ramp. Ramps have a width of at least 1,0 m, a slope of 8%, sides - a height of 0,25 m, a coating - solid, non-slip. Entrances to the vestibule-elevator units of the residential part of the building (the mark of the floor is minus 0,600) are designed from the ground level (the entrance threshold with the mark of the floor is minus 0,650). Elevators are designed to rise to the mark of 0,000. The dimensions of the elevator lobbies and vestibules, the width of the floor corridors and door panels, the height of the thresholds in the doorways are designed in accordance with SP 35-102-2001 p.4.21 and p.4.22. There are sections of sidewalks with a lowered curb, the height of the side stone at the height difference does not exceed 0,05 m. The slopes of footpaths and sidewalks do not exceed 5% in the longitudinal direction and 1% in the transverse direction.

Structural and space-planning solutions

The apartment building consists of 6 sections and is divided by expansion joints into 5 blocks, one of which consists of two sections. The building was designed in a cross-wall system. Basement structures of all sections made of monolithic reinforced concrete. Wall thickness - 200 mm; 250 mm; floor slabs - 200 mm. The structures of the above-ground part of the sections are prefabricated reinforced concrete products manufactured by ZAO DSK Blok. Internal walls - reinforced concrete panels 200 thick; 160 mm, interfloor floors - prefabricated reinforced concrete flooring 160 mm thick. Exterior walls: single-layer reinforced concrete panels with a facade insulation system. Bearing end panels 160 mm thick; non-bearing hinged panels 120 mm thick; three-layer end walls with a thickness of 420 mm with flexible connections, the thickness of the bearing layer of reinforced concrete is 160 mm. The panels are installed in places of expansion joints and enclose the cold stairwell of 19 floor sections. The joints of the outer walls are closed with sealing with mastic over sealing gaskets. Conjugation of load-bearing wall panels and floor slabs in the form of a platform joint. The vertical joints of the load-bearing panels are provided with keyed connections and steel mounting connections with the joints sealed with fine-grained concrete. The spatial rigidity of the building is ensured by the joint work of the transverse and longitudinal walls, combined into a single spatial system by disks of interfloor ceilings. The static calculation of the load-bearing structures of the building was performed using the Lira 9.6 software package. The level of responsibility of the building is normal. Horizontal movement of the top of the building - 5,7 cm (19 storey sections); 11,3 cm (25 storey sections); acceleration of oscillations of section structures arising from pulsation of the velocity pressure of the wind 0,049 m/s2 (19 storey sections); 0,053 m/s2 (25 storey sections), which does not exceed the maximum allowable values. The maximum values ​​of mutual shifts between walls and ceilings in the platform joint are 0,7 mm. The maximum values ​​of mutual shifts between the walls of the perpendicular direction are 0,1 mm, which does not exceed the maximum allowable values. The foundations of the sections are monolithic reinforced concrete tape raftings 600 mm high on a pile foundation. The grillages are united by a plate 250 mm thick. Reinforced concrete driven piles with a section of 40x40 cm, length 22 m, composite in length, the joint of the piles is welded. The connection of piles with grillage is rigid. Pile material - concrete class B25; W8; F100. At the base of the piles at a mark of minus 20.50, there are silty hard clays with a total deformation modulus E = 240 kgf/cm2. The design load on the pile is 120 tf, based on the results of static sounding of soils. Static load testing of piles and, if necessary, adjustment of the pile field are provided. Basement waterproofing from groundwater: the use of high-grade concrete for water resistance for the foundation slab and external walls, the use of waterstops in expansion joints and in concreting working joints. During the construction period and in the initial period of operation until the stabilization of the sediment, the project documentation provides for monitoring the precipitation of a multi-apartment residential building under construction. The relative elevation of 0,000 corresponds to the absolute elevation of 4.40 m. The car park building is designed in a bonded prefabricated reinforced concrete frame series 1.022 KL2. The spacing of the columns is irregular from 3,0 m to 8,4 m. Columns with a section of 400x400 mm. Two-shelf crossbars 450 mm and 600 mm high, depending on the span of the frame. Floor slabs with a thickness of 220 mm: hollow-core flooring and slabs - solid section struts. The stability and spatial rigidity of the building is ensured by the spatial work of vertical, horizontal stiffening diaphragms and structural elements of the frame. Prefabricated reinforced concrete vertical stiffening diaphragms with a thickness of 140 mm are the walls of the stairwells and form the stiffening cores. Floor slabs are horizontal stiffening diaphragms: slabs - struts have welded joints with crossbars, hollow slabs are installed between the slabs - struts, hinged on the crossbars. Material of overhead structures: columns - concrete class B40 (lower tier); B22,5 (upper tier); stiffness diaphragms - class B25 concrete; floor slabs - class B40 concrete. Fittings for all structures of class A400; A500C, rope reinforcement as prestressing reinforcement for floor slabs. Static and dynamic calculation of the load-bearing structures of the building was performed using the Lira 9.6 software package. The level of responsibility of buildings is normal. The foundations of the buildings are monolithic reinforced concrete free-standing grillages for columns 1500 mm high on a pile foundation. Reinforced concrete driven piles with a section of 35x35 cm, length 22,0 m, composite in length, the joint of the piles is welded. The connection of piles with grillage is rigid. At the base of the piles at an absolute mark of minus 19.18, there are hard clays with a total deformation modulus of 240 kg/cm2. The design load on the pile is 107 tf, based on the results of static sounding of soils. Static load testing of piles and, if necessary, adjustment of the pile field are provided. The grillage material is concrete of class B20, B22,5, F100, W8, class AIII reinforcement.