Architectural and space-planning solutions

The construction of a filling station (gas station) for 500 filling stations per day is planned. The gas station building provides service for drivers and passengers. The gas station building is one-story rectangular in plan, with dimensions in the axes of 9,56 m x 14,56 m, the height of the building to the top of the parapet is 4,16 m. storerooms, two wardrobes for staff with a bathroom and shower each, and a service room, an electrical room and a bathroom for visitors, which is accessible for wheelchair users. The height of the sales area to the bottom of the false ceiling 3,0 m. The site of the main entrance is equipped with a ramp, ensuring the accessibility of the entrance for the disabled. The outer walls of the building are made of hinged "sandwich" panels 150 mm thick with an outer cladding of metal facade panels with a polymer coating. Stained-glass window - aluminum bindings with glazing from double-glazed windows. The roof of the building is rolled, flat, with an organized internal drain. The canopy over the fuel dispensers is designed with a height of 4,8 m to the bottom of the structures covered with profiled steel sheet.

Structural and space-planning solutions

The filling station building is designed with a canopy over the filling stations and a walkway with 3 underground fuel tanks located in the tank farm. The gas station building is designed as a one-story, rectangular in plan, dimensions in the axes are 14,56 x 9,56 m. The height of the building is assumed to be 4,16 m from the planning level to the top of the parapet. The canopy over the fuel dispensers with the transition to the gas station building is assumed to be T-shaped in plan with a size of (18,00 x 9,00) + (13,00 x 7,50) m and a height of 5,55 m from the planning level to the top of the parapet. Tanks for fuel are taken underground steel double-walled with a capacity of 50 m3 each. The frame of the gas station building is designed according to a two-span structural scheme. Frame pitch in axes - (2,900 + 2,835 + 6,180 + 2,645) m. Frame spans in axes - (6,325 + 3,235) m. The frame columns are made of steel from square pipes 140x6 mm in size according to GOST 30245-2003. The columns on which the canopy rests over the passage to the gas station building are made of steel from square pipes measuring 200x6 mm in accordance with GOST 30245-2003. The fastening of all columns to the foundations is provided rigid. The roof beams are designed from rolled steel I-beams according to STO ASChM 20-93 and channels according to GOST 8240-97. Coating runs - from steel rolled channels in accordance with GOST 8240-97. The roof beams are fastened to the columns and the girders to the beams are hinged. The covering of the gas station building is designed from three-layer sandwich panels along steel girders. The fastening of the covering panels to the girders is provided by self-tapping screws. The spatial rigidity and stability of the gas station building are provided by the rigidity of the columns fixed in the foundations and designed as cantilever elements. The outer walls of the filling station building are made of hinged insulated panels of the "sandwich" type, fastened to the frame columns with self-tapping screws. The load-bearing structures of the gas station building were calculated using the SCAD 11.3 computer system without taking into account the joint action of the “building-foundation-foundation” system. The foundation for the gas station building is designed in the form of a monolithic reinforced concrete slab on a natural base made of concrete of class B20 for strength, grades W6 for water resistance and F100 for frost resistance, 200 mm thick with longitudinal and transverse ribs 660 mm high to support frame racks. For a relative mark of 0,000, the mark of the finished floor of the gas station building is taken, corresponding to the absolute mark of +13,750 m in the Baltic system of heights. The canopy over the fuel dispensers with the transition to the gas station building is designed according to the frame structural scheme and is supported by the bases of the columns on separate foundations. The basis of the canopy frame are two single-span frames with a span of 9,0 m with a distance between frames of 2,5 m with cantilever outlets of crossbars 4,5 m long. The canopy frame columns above the fuel dispensers are made of steel, made of square pipes measuring 250 x 6 mm in accordance with GOST 30245-2003, on which the coating of I-beams is pivotally supported according to STO ASChM 20-93 and runs from steel rolled channels in accordance with GOST 8240-97 , united by galvanized steel profiled sheets H75-750-0,8 in accordance with GOST 24045-94. Fastening sheets of corrugated board to the purlins is provided by self-tapping screws in each wave. Between themselves, the sheets are fastened with combined rivets with a pitch of 300 mm. The spatial rigidity and stability of the canopy is ensured by the rigidity of the columns fixed in the foundations and calculated as cantilever elements, by the hard disc of the roof, as well as by the fastening of the roof beams to the columns of the gas station building. The load-bearing structures of the canopy were calculated using the SCAD 11.3 computer system without taking into account the joint action of the “structure-foundation-foundation” system. The foundations for the canopy columns are designed as separate monolithic reinforced concrete, made of concrete of class B20 for strength, grades W6 for water resistance and F100 for frost resistance. Under the foundations of the canopy, a preparation of crushed stone 100 mm thick, impregnated with bitumen, and a cushion of medium-sized sand, laid with layer-by-layer compaction, are provided. The foundations for the fuel tanks are designed in the form of monolithic reinforced concrete slabs made of concrete of class B20 in terms of strength, grades W6 in terms of water resistance and F100 in terms of frost resistance. Under the foundation slabs, preparation of medium-sized sand is provided. In accordance with the "Conclusion on the engineering-geological conditions of the site of the planned construction of a gas station ...", the base of the sand cushion under the foundation slab of the gas station building and the foundations of the canopy is heavy silty loam, fluid, ribbon, thixotropic brownish-gray with sand lenses, with the following characteristics (IGE-5): ρII=1,82 g/cm3; e=1,006; IL=1,11; φII=9°; cII=11 kPa, E=6,5 MPa. The bulk soils and peat lying under the foundation slab of the gas station building and the foundations of the canopy are planned to be replaced with a cushion of medium-sized sand, laid with layer-by-layer compaction. The calculated resistance of the sand cushion under the foundation slab of the control room building is R=200 kPa. The average pressure under the sole of the foundation slab of the gas station building will be p = 27,4 kPa. The calculated resistance of the base soil under the sand cushion of the foundation slab of the gas station building is R = 312 kPa. The average pressure under the sole of the sand cushion of the foundation slab of the gas station building will be p=43kPa.  AZS S = 0,64 cm. The calculated resistance of the base soil under the sand cushion of the canopy foundations is R = 150 kPa. The average pressure under the sole of the sand cushion of the canopy foundations will be p = 182 kPa. Expected average design settlement of the canopy foundations - S = 81,5 cm. , e=0,76, IL=7, φII=1,87°, cII=3 kPa, E=0,911 MPa. The calculated soil resistance of the base under the foundation slabs of the fuel tanks is R=0,75 kPa. The average pressure under the sole of the foundation slabs of the fuel tanks will be p=13 kPa. Settling of the foundation slabs of the fuel tanks is not expected. The normative depth of seasonal freezing of the base soils is 16 m. For the period of field work, groundwater associated with bulk soils was recorded at depths of 7,5–255,7 m. During periods of active snowmelt and rainfall, the maximum level of groundwater is expected to be about surfaces. Groundwater is moderately aggressive in terms of the content of aggressive carbon dioxide to concrete W53,95 in terms of water resistance. To protect underground structures from the aggressive effects of groundwater, it is planned to use concrete grade W1,45 for water resistance.