Architectural and space-planning solutions

The design documentation provides for the construction of a closed-type parking building for 92 parking spaces. The building of variable number of storeys is two-three storey, rectangular in plan, unheated. The dimensions in the extreme axes are 33,0 x 76,6 m. The height of the building from the planning ground level to the parapet is 10,20 m. The level mark of the first floor of the building is taken as a relative mark of 0,00. On the first floor of the building, entrances to the parking lot, administrative and utility and technical premises, including security premises, a water metering unit, an electrical panel room, a room for storing fluorescent lamps, and places for 46 cars allocated with a metal mesh are designed. The height of the 1st floor is 3,6 m. On the second floor, places allocated with a metal mesh for 46 cars are designed. The height of the 2nd floor is 3,0 m. The third floor is designed in axes 1-2. On the third floor, technical rooms are provided - ventilation chambers, rooms for storing fire extinguishers. The height of the premises of the 3rd floor is 2,8 m. The building is provided with a stairwell of type L1 and an open metal staircase of type 3. From the vestibule of the 3rd floor there is an exit to the roof above the two-story part of the building. Access to the roof in axes 1-2 is provided by a metal staircase from the roof level of the two-story part of the building. The facades of the building are hinged metal cassettes of the "Liberta" type, stained-glass windows on a metal frame. The basement of the building is tiled with porcelain stoneware. Partitions are designed from aerated concrete and gypsum boards on a metal profile. The premises of the building are finished depending on the purpose of the premises. All finishing materials are certified. Filling of window openings - metal-plastic profile with single-chamber double-glazed windows. The covering is flat combined, the roof is rolled, with an internal drain. The project documentation provides for measures to prevent criminal manifestations, including a security room and access control. The project documentation provides for measures to ensure access for disabled people to the 1st floor of the building and special parking spaces on the 1st floor in the immediate vicinity of the entrance to the building. At the entrance to the building, ramps are designed to rise to the level of the first floor. Structural and space-planning solutions Building responsibility level – II. The car park building is designed from monolithic reinforced concrete according to a frame structural scheme and is divided into two blocks by a sedimentary joint. Columns with a section of 400 x 400 mm, grid of columns 7,6 x 5,0 ÷ 6,5 m. Internal load-bearing walls (stiffness diaphragms) 200 mm thick. Floor slabs and coatings - continuous 200 mm thick along beams with a section of 400 x 400 mm. The material of ground monolithic reinforced concrete structures is concrete of class B25, W6, F75, reinforcement of class A400C. The internal staircase is made of monolithic reinforced concrete, the external one is in steel structures. Exterior walls made of aerated concrete B 2,5, F35 400 mm thick and finished with facade metal panels. Fastening of the outer walls to the supporting structures of the building is provided by flexible ties with anti-corrosion coating. The spatial rigidity and stability of the car park is ensured by the joint work of walls and columns, united by monolithic reinforced concrete floor disks. The calculation of the building was made using the SCAD 11.3 software package. The relative mark of 0,000 corresponds to the absolute mark of 6.20. The foundations of the blocks are taken in the form of monolithic reinforced concrete slabs 400 mm thick, concrete B25, W6, F50. An artificial base is provided under the slab, consisting of the following layers: waterproofing, foam plastic 50 mm thick, cement-sand screed 50 mm thick, waterproofing, crushed stone 200 mm thick, sand 200 mm thick. In accordance with the report on engineering and geological surveys, the base of the foundation is compacted bulk soil with a design resistance R = 0,8 kg/cm2. The expected settlement of the building is 4 ÷ 5 cm. To protect the foundation soil from freezing, a 50 mm thick foam layer is provided under the blind area along the perimeter of the building.

Engineering equipment, utility networks, engineering activities

The main consumers of electric energy are: electric lighting, ventilation, technological equipment of the car park, fire protection systems, communication network equipment. With regard to the reliability of power supply, the complex of electrical receivers of the facility belongs to the 2nd category, electrical equipment for emergency lighting, fire-fighting systems, communication networks - to the 1st category. Restoration of power in the event of a power failure from one of the sources is provided for: for electrical receivers of the 2nd category - manual, by the actions of the personnel on duty in the main switchboard-0,4kV, for electrical receivers of the 1st category - automatic, by AVR devices in the main switchboard-0,4kV. The power supply scheme adopted in the design documentation satisfies the requirements for the reliability of power supply to consumers of electricity of the designed facility. The estimated electrical load is 49,0 kVA, including the load of the 1st category of 25,5 kVA. Electrical energy is distributed through MSB-0,4kV, power and lighting distribution boards, power boards of technical premises. For the distribution and group network, VVGng cables were selected; for networks of fire protection systems - VVGng-FRLS. All cables and wiring (starting from the main switchboard) in three-phase networks are five-core, in single-phase networks - three-core. The equipment of switchgears and electric networks was checked for long-term permissible load, for the time of disconnection of the damaged section by protection devices, for voltage losses, for heating, for short circuit mode. The security system is adopted by TN-CS with the device of the main and additional potential equalization systems, re-grounding of the neutral wire. The lightning rod is a steel strip 40x4, laid along the perimeter of the roof and connected by down conductors to a natural ground electrode - the reinforced concrete foundation of the building. The area is illuminated with ZhKU-15-400-101B lamps installed on the facades of the building (h = 10,0 m). Commercial electricity metering is provided at the inputs to the MSB-0,4 kV by transformer-connected meters TsE2727. The main energy-saving measures are: the use of fluorescent lamps with electronic control gear and the limited use of incandescent lamps, automatic lighting control of the surrounding area. In accordance with the conclusion, the connection of radio networks to the city radio broadcasting network is provided for by an overhead line from the building at the address: Industrialny pr., 20, bldg. 1. The radio network is interfaced with the SOUE of the object through the equipment P-166 VAU (SGS 22M). The access control and management system is built on the basis of S2000-2 equipment. Checkpoint (entry) regime, registration of visitors is organized at one checkpoint and entrances (exits) to the 1st and 2nd floors. The security alarm system is built on the basis of the hardware-software complex "Signal-20P". Number of protected zones 12. The CCTV system monitors the situation at the entrance (exit), entrance (exit) to the building and the internal floors of the parking lot using 13 video cameras IWPC-10ZDN500 LED, CXD-VF600 SLV. Registration of video signals is carried out on a 20-channel video recorder NDR-1620 EZM. Water supply (cold water) for consumers of the facility, in accordance with the technical specifications, is provided from the public water supply network Dn = 200mm, at the input from Dn = 50mm. Guaranteed head 28m w.c. At the input, a water metering unit is installed according to TsIRV 02A.00.00.00 sheet 154,155, with a meter Du=15 mm. Required pressure at the connection point 9.0 m. Art. Estimated consumption of cold water 1,33 m3/day, including: for household and drinking needs -0,036 m3/day; for hot water supply –0.028 m3/day; for irrigation of the adjacent territory – 1,27 m3/day. The drinking water supply system is a dead end. For irrigation of the territory, along the perimeter of the building, watering taps D = 25mm are installed. External fire extinguishing is provided from fire hydrants D = 125 mm, installed on intra-quarter networks. Water consumption for external fire extinguishing - 20 l / s. The B1 drinking water supply system is designed from galvanized steel pipes GOST 3262-75. Preparation of hot water for the system is provided in a capacitive electric heater V = 15 l. Hot water temperature (Тз) – 65°С. Removal of domestic wastewater in the amount of 0,064 m3/day. provided for outlets from pipes of polypropylene pipes D=160/139 "Pragma" into well No. 117, into the existing yard sewerage D=150mm. For the removal of rainwater, it is planned to install local treatment facilities with the installation of filter cartridges with a capacity of 8,0 m3/h. Rainwater in the amount of 12,1 l / s is discharged into the common sewerage into well No. 121.

Heat supply

Heating of the parking building is not provided. Electric convectors are provided for heating the guard rooms and utility rooms. Ventilation of the car park is provided for supply and exhaust with mechanical stimulation. The car park ventilation systems are designed separately for each floor. Autonomous ventilation systems with mechanical and natural impulses are designed for utility rooms. The placement of the equipment for the ventilation systems of the parking lot is provided in the ventilation chambers, and the ventilation systems for the utility rooms are located under the ceiling of the corridor on the first floor and the serviced premises. Reservation of the equipment of exhaust ventilation systems serving the car park premises is provided. Air exchanges are determined based on the assimilation of hazards for parking spaces and according to the standard multiplicity and minimum outdoor air flow for utility rooms. Fire protection measures are provided. A smoke removal system from the car park premises was designed.