Architectural and space-planning solutions

The designed car wash for 5 posts is a structure that is a canopy along metal columns, rectangular in plan, with dimensions in the extreme axes of 27,7 x 6,0 m. The maximum elevation from the planning mark of the ground to the top of the roof is 4,33 m. the mark of 0,000 is the mark of the top of the force floor slab, which corresponds to the absolute mark of 5.20. At the level of +0,110, 5 parallel washing posts and a container with equipment are designed, arranged in a single block under a common canopy.

Structural and space-planning solutions

The constructive scheme of the car wash canopy is frame-and-braced. Frame - steel, in the transverse direction - two-span, with spans of 3 m. Columns - from bent closed welded profiles 120 x 5 mm with a pitch along the canopy of 5,0, 2,7 m, with rigid attachment to the foundations. The roofing is single-pitched, made of profiled flooring H60-845-0,8 with a span of 1,5 m, supported by secondary floor beams. The main roof beams are made of rolled I-beams No. 20 with hinged support on columns and fastening by welding. Secondary beams - from rolled channels No. 20 with hinged fastening to the main beams with bolts. The frame of the cornice is a post-and-beam structure 600 mm high made of rolled corners, with fastening to roof beams and columns. Vertical stiffeners made of closed bent-welded profiles are designed in two directions. The spatial rigidity and stability of the canopy is ensured by the rigid fastening of the columns to the foundations, the rigidity of the columns and the joint work of the frame and vertical stiffeners. Calculations of the building structures were performed using the SCAD v.11.3 software package in a finite element model. The level of responsibility of the car wash canopy is the third (reduced). The estimated service life of the building is assumed to be at least 10 years. The mark of the top of the reinforced concrete floor slab, corresponding to the absolute mark of 0,000, was taken as 5.20. The foundation of the car wash shed was designed in accordance with the results of engineering and geological surveys. The foundation of the car wash shed is a shallow slab 500 mm thick made of monolithic reinforced concrete (concrete B20, W4, F100, reinforcement A-III and A-I). Bulk soils at the base of the foundation are partially (to the depth of soil freezing) replaced by a sand cushion of medium-sized sand with a compaction factor of 0,95. Preparation for foundations - from a layer of monolithic concrete B7,5 with a thickness of 100 mm over a layer of crushed stone 400 mm thick and a layer of sand 200 mm thick. To exclude the negative influence of the forces of frost heaving along the perimeter of the foundation of the car wash, the construction of the blind area is insulated. The design of the floor of the car wash provides for heating. The base of the sand cushion is bulk soils with Ro = 0,8 kgf/cm2, underlain by slightly peaty soils (IGE-2) with e = 2,18, E = 40 kgf/cm2, φII = 10°. Stress at the base of the foundation - no more than 0,5 kgf / cm2. The maximum level of groundwater is possible at the surface of the earth. Groundwater is non-aggressive towards concrete of normal permeability. The expected design draft of the canopy is 3,056 cm, the relative difference of the draft will not exceed 0,0026. 

Engineering equipment, utility networks, engineering activities

 Power supply of power receivers of all categories in terms of power supply reliability in normal mode for a self-service car wash, according to the technical specifications, is provided from the public electrical networks of the centralized power supply system through one cable gland, in emergency mode - from an uninterruptible power supply for electrical receivers of security systems. Car wash electrical receivers belong to the third category in terms of power supply reliability, electrical receivers of security systems - to the first category. The total rated power of the electrical installation is 42 kW, including the rated power of the electrical receivers of the security systems, which in emergency mode are provided by autonomous UPSs (low-voltage systems). Grounding system for open conductive parts - TN-S (separate, PE conductor of the cable of the corresponding electrical receiver). Schematic and design solutions of the designed electrical installation ensure the electrical safety of non-categorized and operating personnel (solid insulation, shutdown of non-stationary processes, lack of contact voltage, etc.), the grounding and potential equalization systems are designed in accordance with the standards. Lightning protection is provided by the metal structures of the structure and roof. Water supply and sanitation - in accordance with the conditions of connection. Water supply (cold water) for consumers of the facility is provided by one water inlet with a diameter of 63 mm from the public water supply network with a diameter of 325 mm. The connection point is at the border of the land plot. Polyethylene pipes according to GOST 18599-2001 were selected for laying the water inlet. At the designed inlet of the utility and drinking water supply, it is planned to install a water metering unit according to the drawings TsIRV 02A.00.00.00 sheet of the album 20, 21 with a bypass line. Guaranteed pressure at the connection point - 28 meters of water column. Cold water consumption - 24,0 m3/day (for technological needs). Technological equipment is connected after the water metering unit. There is no drinking water supply system. The required pressure for technological needs is 5,35 meters of water column. External fire extinguishing is provided from the existing fire hydrant No. 205 on the public water supply network with a diameter of 325 mm. Water consumption for external fire extinguishing - 10 l / s. Discharge of technological wastewater in the amount of 19,2 m3/day, rainwater from the roof and the adjacent territory with a flow rate of 4,36 l/s is provided for in the designed on-site combined sewer network with the flow of wastewater into the communal network of combined sewerage with a diameter of 900 mm. The connection point is at the border of the land plot. Polypropylene pipes with a diameter of 250 mm were selected for laying on-site sewer networks and outlets. To treat process effluents at the outlet from each washing station, wells with a settling part are provided, and a VOC installation with a capacity of 1,5 l / s is provided for on the sewerage network after all stations. To clean the rainwater runoff, a filter cartridge NPP "Polykhim" with a capacity of 1 l / s is installed in the storm water well DK4,5.

Technical specifications: water consumption 600-660l/h (for each post); maximum pressure 150bar; working pressure 90-130bar; water temperature 20-600С (adjustable); boiler power 50-100 kW; boiler consumption 4,5-7l/h (diesel fuel); electrical connection 3ACN 400V3 phase/50Hz; softener capacity 5-10m3/h; productivity of reverse osmosis system 600-1200l/h; tank volume for demineralized water 800-4000l; capacity for tableted salt 75-200l. Connection requirements for a car wash for 5 posts: electricity - 43,55 kVA-66,2A; water supply 24 m3/day; water for external fire extinguishing - 10 l / s; sewerage of domestic wastewater -24 m3/day; storm water disposal - 4,36 l/s; The car wash is open 6 hours a day, all year round. The throughput of one self-service car wash station is up to XNUMX cars per hour.

Project composition:

Section 1. Explanatory note.
Section 2. Scheme of the planning organization of the land plot.
Section 3. Architectural solutions.
Section 4. Structural and space-planning solutions.
Section 5. Information about engineering equipment, networks of engineering and technical support, a list of engineering and technical measures, the content of technological solutions.
Subsection 1. Power supply system.
Part 1. Power electrical equipment and electric lighting.
Part 2. Outdoor power supply.
Subsection 2. Water supply system.
Subsection 3. Drainage system.
Subsection 7. Technological solutions
Section 8. List of measures for environmental protection
Book 1. List of measures for environmental protection
Book 2. Technological regulations for the management of construction waste
Section 9. Measures to ensure fire safety
Section 10. Measures to ensure access for persons with disabilities
Section 10.1. Requirements for ensuring safe operation of the capital construction object
Section 11.1 Measures to meet the requirements for energy efficiency and the requirements for equipping buildings, structures and structures with metering devices for the energy resources used
Section 12 Other Documentation
Technical report on the engineering and geological conditions of the territory of the projected construction.
Technical report on engineering and environmental surveys on a land plot of 0,1055 hectares allocated for the construction of the facility.
Topographic survey of the site