Architectural and space-planning solutions

The designed filling station includes an operator building, a fuel dispenser for refueling cars with a canopy, a transitional canopy, an ACC platform with 2 double-walled fuel tanks of 50 m3 each and an emergency fuel drain tank with a volume of 15 m3. Types of fuel used at gas stations - DT, AI-92, AI-95, AI-95 brand. The building of the control room (hereinafter referred to as the building) is designed rectangular in plan, with dimensions in the extreme axes of 11,54 x 20,32 m, with a transitional canopy with dimensions in the plan of 17,6 x 8,0 m and a canopy over the fuel dispenser with dimensions in the plan of 22,10 x 8,00 m. The building is one-storey, the height from the ground level to the parapet is 4,24 m. The canopy over the fuel dispenser is 6,00 m high from the ground level to the parapet, designed to protect against atmospheric precipitation and illuminate the filling area for cars. In the building: a customer service area, including operator workplaces, a cafeteria and a related goods store, administrative and amenity premises for personnel and engineering and technical premises. Roofing - rolled, covering - flat. The drain of the gas station building is external with electrically heated funnels. Access to the roof is provided by an external fire escape. The facades of the building are made of sandwich panels on a metal frame, lined with polymer-coated aluminum facade panels, with elements of stained-glass double-chamber glazing. Stained glass windows - with aluminum bindings filled with double-glazed windows. Exterior doors - metal insulated; glazed anodized aluminum. Internal partitions, depending on the purpose of the premises, are designed from gypsum boards, gypsum boards on a metal frame. Interior decoration is carried out in accordance with the functional purpose of the premises. Canopy over the fuel dispenser - from steel galvanized profiled sheets with a polymer coating on a steel frame. Finishing material - aluminum panels with a polymer coating. The project documentation provides for measures to ensure the access of MGN to the filling site of cars and to the customer service area of ​​the gas station building: ramps are provided for elevation changes; anti-slip coating on the paths of the disabled. All ways of movement of MGN are provided with timely submission of information about the danger in extreme situations. The building is equipped with a universal sanitary cabin MGN.

 Structural and space-planning solutions

The gas station building is designed as a one-story, rectangular in plan, dimensions in the axes of 20,32x11,54 m. The height of the building is assumed to be 4,24 m from the planning level to the top of the parapet. The canopy over the fuel dispensers and the passage to the gas station building is assumed to be T-shaped in terms of size (22,10x8,00) + (17,60x8,00) m and a height of 6,00 m from the planning level to the top of the parapet. The fuel tanks are taken as underground double-walled steel tanks with a capacity of 50 m³ each, located under the fuel islands. The frame of the gas station building is designed according to a two-span structural scheme. Frame spacing in axes - (3,465 + 3,090x2 + 5,150 + 5,525) m. Frame spans in axes - (7,70 + 3,84) m. The frame columns are made of steel pipes with a diameter of 219x10mm according to GOST 8732-78*. The columns on which the canopy rests over the passage to the gas station building are made of steel from pipes with a diameter of 327x14mm in accordance with GOST 8732-78*. The fastening of all columns to the foundation slab 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 purlins are taken from rolled steel channels according to GOST 8240-97. The roof beams are fastened to the columns and the girders to the beams are hinged. The filling of the gas station building is designed from three-layer sandwich panels along metal girders. The fastening of the covering panels to the girders is provided by self-tapping screws. Vertical braces of the frame and horizontal braces of the cover are taken from equal-shelf angles according to GOST 8509-93. The spatial rigidity and stability of the gas station building are provided by the rigidity of the columns fixed in the foundations, as well as by vertical and horizontal connections. The outer walls of the gas 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 11.1 design and computer complex without taking into account the joint action of the “building-foundation-foundation” system. The foundation for the gas station building is designed on a cushion of medium-sized sand 1000 mm thick with a compaction coefficient Ku=0,95 in the form of a monolithic reinforced concrete slab made of concrete class B20, grades W4 and F150 150 mm thick with longitudinal and transverse ribs 650 mm high to support the racks frame. Under the foundation slab, a preparation of class B7,5 concrete with a thickness of 80 mm is provided. 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 +26,940 m in the Baltic system of heights. The canopy over the fuel dispensers and 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 polygonal metal frames, concreted in the upper part and welded to the embedded parts of the foundation slabs. The canopy frame is based on two double-span frames with spans of 7,5 m each with a cantilever outreach of crossbars of 3,55 m and a distance between frames of 2,8 m. The frame columns are made of steel square section 250x10 according to GOST 30245-2003. The fastening of the canopy columns to the foundations is assumed to be rigid. The canopy cover beams are designed from rolled steel I-beams 45SH1 according to STO ASCHM 20-93, rigidly fixed to the column heads. Coating runs are taken from rolled I-beams according to GOST 8240-97. The cover of the canopy is designed from galvanized steel profiled flooring in accordance with GOST 24045-94 for metal girders. Fastening sheets of corrugated board to the purlins is provided by self-tapping bolts on all supports in each wave. The sheets are fastened together 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, the hard disk of the roof, as well as the fastening of the roof beams to the columns of the gas station building. The foundations for the polygonal metal frames of the fuel tanks are designed in the form of monolithic reinforced concrete slabs 400 mm thick made of concrete of class B20, grades W4 and F150. Under the foundation slabs, a preparation of medium-sized sand with a thickness of 200 mm is provided. In accordance with the “Conclusion on the engineering and geological conditions of the site of the planned construction of gas stations ...”, the base of the sand cushion under the foundation slab of the gas station operator building is dusty, dense sands with rare interlayers of loam, saturated with water, gray with the following design characteristics (EGE- 2): ρII=2,07g/cm³, e=0,550, φII=34°, cII=6kPa, E=28,0MPa. The calculated resistance of the sand cushion under the foundation slab of the gas station building is R = 2,30 kgf / cm². The average pressure under the sole of the foundation slab of the gas station building is p=0,95kgf/cm². The calculated resistance of the base soil under the sole of the sand cushion of the foundation slab of the control room building is R = 3,47 kgf / cm². The average pressure under the sole of the sand cushion of the foundation slab of the gas station building is p = 1,25 kgf / cm². The expected average settlement of the foundation slab of the gas station building is S = 2 cm. e=3, IL=2,01, φII=0,628°, cII=0,75kPa, E=24MPa. The normative depth of seasonal freezing of the foundation soils is 13 m. Groundwater with a free surface is exposed at depths of 9,0 - 1,40 m.