Architectural and space-planning solutions

The project documentation provides for the construction of a stationary gas station with a service building and a canopy over fuel dispensers. The service building and the canopy over the fuel dispensers are the components of the gas station complex designed for refueling passenger vehicles, as well as service maintenance for vehicle drivers and passengers. The service building is a one-story frame building without a basement or an attic, rectangular in plan, with dimensions in the extreme axes of 15,97 x 11,60 m. The greatest height of the vertical plane of the facade from the planning ground level (-0,150 m) to the top of the parapet is 4,23 m. The height of the premises to the bottom of the suspended ceilings is 2,5 m, 2,75 m. For a relative mark of 0,000, the mark of the clean floor of the building is taken. The building houses: a customer service room, a control room, a store with a fast food area (cafe), a utility room for a cafe, a pantry for food products, a pantry for non-food products, an electrical panel room, bathrooms for staff and visitors, utility rooms, a water meter unit, a staff wardrobe with showers. The main entrance to the building is designed from the side of the main facade. The main facade of the building is oriented towards the territory of the station. The stained-glass window occupies the main area of ​​the main facade. The frame is metal. Walls - sandwich panels with mineral wool filling. Partitions - from plasterboard sheets on a metal frame with mineral wool filling in a simple and moisture-resistant design. Stained-glass windows, doors - aluminum profiles filled with double-glazed windows with anti-shock film. Window blocks - aluminum profiles filled with double-glazed windows. Doors - metal, metal-plastic and wooden, in accordance with GOST and individual production, in the usual and fire-resistant design. The roof is flat, combined, insulated with a roof made of rolled materials (the top layer is with gravel protection) along a profiled steel sheet along girders and beams. The drain is internal. The surface of wall sandwich panels in Shell White color is made with a factory-made polymer coating. The plinth is made of cladding facade panels with a polymer coating in the color "Shell Grey". Stained glass, window and door blocks, bindings, frames, plums and fittings are white. The interior decoration of the premises and the floors are designed in accordance with the purpose of the premises: floors - cement-sand with a polymer coating, with a coating of ceramic granite tiles, from TZI linoleum; internal lining of external wall panels - from GKL and GKLV, followed by painting with water-based paint or facing with ceramic tiles; suspended ceilings - type "Armstrong" and slatted. The building's external enclosing structures are adopted on the basis of thermal engineering calculations and comply with the requirements of SNiP 23-02-2003. Premises with permanent residence of people are designed with natural light. A canopy is designed above the fuel dispensers and above the space between the service building and the fuel dispensers. The canopy over the fuel dispensers is a modular-frame structure, the rectangular projection of which has a plan size of 23,30 x 10,52 m. The maximum height from the ground level (-0,150 m) to the top of the roof is 5,50 m. The connecting canopy between the service building and the fuel dispensing islands is a frame-type structure, the rectangular projection of which has a plan size of 13,50 x 6,51 m. The frame is metal. The roof is flat, with corrugated steel sheet roofing over girders and beams. The drain is internal. Covering under the canopy - concrete non-sparking and oil and petrol resistant tiles. The finishing material is a smooth metal sheet with a polymer coating. Measures are envisaged to ensure the accessibility of the building and facilities for people with limited mobility. The main entrance to the building is equipped with a ramp. The ramp has a width of at least 1,20 m, the slope is within 5%, the coating is hard, non-slip. The width of the door leafs on the escape routes is assumed to be at least 0,9 m. Glazed door leafs have anti-shock filling. A sanitary unit with a specially equipped cabin has been designed. At the intersection of the sidewalk with the carriageway, a lowered curb with a height of not more than 4 cm is provided. All public places accessible for the disabled are marked with appropriate signs and symbols.

Structural and space-planning solutions

The control room and shed buildings are designed in a steel frame. Level of responsibility – II. The constructive scheme of the control room building is a complete frame. The node supporting the roof beams on the columns is hinged. The spatial immutability of the frame of the control room is ensured by the joint work of the columns, rigidly fixed in the foundation, and the hard disk of the cover. The rigidity of the coating disc is ensured by fastening the corrugated board to the girders in each wave on the extreme spans and through the wave on the middle spans. The sections of the main load-bearing structures of the frame were adopted: columns - square pipes according to GOST 30245-2003 from steel C255; roof beams - I-beam according to STO ASCHM 20-93 from steel C245, roof decking - H75-750-0.8 according to GOST 24045-94. As external enclosing walls, hinged wall panels of the "Sandwich" type 150 mm thick are used, the coating is corrugated board, laid directly on the upper belts of the coating beams. A fachwerk system has been developed for fixing wall panels. The foundation for the control room building is a non-buried monolithic reinforced concrete slab 180 mm thick, with monolithic beams along the contour and under columns 500 mm high, made of B20, W4, F50 class concrete. To prevent freezing of the base of the foundation slab, insulation with foam slabs is provided. A cushion of coarse-grained sand is arranged under the foundation slab. In accordance with the report on engineering and geological surveys, the base is the EGE-2 layer (plastic silty sandy loam), which has the following characteristics: ρн=2,02 t/m3; e=0,640; n =24о; Сn=0,13 kg/cm2; E=90 kg/cm2. The average pressure under the sole of the foundation slab is 0,19 kg/cm2. Estimated soil resistance of the base - 2,53 kg/cm2. The expected settlement of the foundation slab is 0,3 cm. The spatial invariability of the canopy frame is ensured by the joint work of the columns, rigidly fixed to the foundation, and the hard disk of the profiled flooring, which is fastened with self-tapping screws in each wave. The node for supporting the main beams of the roof on the columns is rigid. Columns - pipes according to GOST 10704-91 from steel C245, canopy beams are designed from I-beams according to STO ASChM 20-93 from steel C245, corrugated board - H75-750-0.8 according to GOST 24045-94. The foundations for the canopy columns are monolithic reinforced concrete columnar foundations made of B20, W4, F150 class concrete. In accordance with the report on engineering and geological surveys, the base is the EGE-2 layer (plastic silty sandy loam), which has the following characteristics: ρн= 2,02 t/m3; e=0,640; n =24о; Сn=0,13 kg/cm2; E=90 kg/cm2. The average pressure under the base of the foundation is 1,05 kg/cm2, the design soil resistance of the base is 2,45 kg/cm2. Expected draft - 1,7 cm, horizontal movement - 14,7 mm. The foundations of underground reservoirs are taken on a natural basis in the form of a monolithic reinforced concrete slab 400 mm thick, concrete class B20, W4, F50. The basis for the foundations for the reservoirs is the EGE-3 layer (fluid-plastic loam, thixotropic), which has the following characteristics: ρн=1,82 t/m3; e=1,132; n=11о; Сn=0,11 kg/cm2; E=60 kg/cm2. The design of the foundations provides stability against ascent. The project provides for coating waterproofing of the outer faces of the foundations in contact with the ground. The calculation of the main load-bearing structures was performed using the SCAD software package version R11.3. The maximum horizontal movement of the canopy frame is 13,67 mm. The displacements and deflections obtained as a result of the spatial calculation of the building frame do not exceed the maximum allowable values. The relative mark of 0,000 corresponds to the absolute mark of 18.500. The groundwater level during the survey period was revealed at a depth of 1,6 - 1,8 m from the earth's surface at absolute levels of 13.46 - 13.02. The maximum level of groundwater is expected during periods of snowmelt and heavy rainfall is expected at a depth of 0,5 m from the day surface, at absolute levels of 14.28 - 14.61. In hydrogeological terms, groundwater is slightly aggressive with respect to concrete of normal permeability.