Space-planning solutions

The space-planning solution was made on the instructions of the Customer, and in accordance with building codes, state standards and technical regulations. The volumetric-spatial structure, the silhouette are dictated by the town-planning situation, the requirements of the technological process, and the influence of the surrounding buildings. Sites of stationary engineering-equipped snow collection points are designed (hereinafter referred to as SISP) in the form of two reinforced concrete open areas. SISP are designed with a hard asphalt concrete waterproof coating and a slope. A reinforced concrete wall reinforced with buttresses was built along the perimeter of the SISP. A mesh fence is installed above the reinforced concrete walls of the SISP, which prevents large-sized debris from entering outside the site. The asphalt-concrete waterproof coating is provided with a slope and trays for the passage of melt water from the surface of the site. In the building of the checkpoint there are: a security post, a bathroom with a shower, a wardrobe, a vestibule. External enclosing structures are made of wall sandwich panels. The architectural solutions of the facades are determined by the decorative properties of the materials used. Window openings are filled with double-glazed windows in a metal-plastic profile. Doors are metal. Space-planning solutions provide the normative coefficient of natural light in the designed premises by placing window openings in the outer walls. The basis of the checkpoint building is a metal-wood frame made of bent and rolled steel profiles and wooden bars fixed to the metal elements of the frame. Corrosion resistance of metal structures of block modules is ensured by the use of anti-corrosion paint coatings on the metal frame of the block module. Wall construction: Outside, the walls are made of profiled sheet steel with a polymer coating (standard colors according to the RAL catalog). Moisture-proof film, Insulation - non-combustible mineral wool type "ROCKWOOL" 200 mm thick, Wind-proof film layer, Moisture-resistant gypsum boards with finishing. Roof and ceiling construction: Roof built-up in several layers - Moisture-proof film, - Insulation non-combustible mineral wool type "ROCKWOOL" 200 mm thick; A layer of windproof film, Gypsum boards (drywall). Floor construction: Metal sheet - Moisture protective film, Insulation non-combustible mineral wool type "ROCKWOOL" 200 mm thick; A layer of windproof film, DSP boards covered with linoleum. Windows - metal-plastic double-glazed windows. External doors - metal insulated. Internal doors - laminated. All materials and equipment used in the manufactured buildings have certificates of conformity, sanitary and hygienic certificates and fire safety certificates. Block - modules of buildings have a certificate of conformity No. ROSS Yai.SL19.N00527.

Constructive decisions

The designed complex of the snow collector is territorially divided into two sites for storing snow. Each area for storing snow along the perimeter is fenced around the perimeter with a multi-section retaining wall that encloses the place for storing snow. Sections of the complex are made of monolithic reinforced concrete. Each section consists of a sole, a foundation monolithic reinforced concrete slab on a natural base, a vertical retaining wall, reinforced from the back with buttresses. In the middle, on two buttresses along the top, there is a slab on which a lighting support is installed. Structurally, the sections are separated from each other by expansion joints. The height of the designed wall from ground level to the top of the retaining wall is 8 to 10,66 m. The size of the section in plan is 25 x 10 m. The design scheme of each section of the snow catchment is cross-walled with transverse and longitudinal load-bearing walls made of monolithic reinforced concrete. On a monolithic reinforced concrete slab on a natural base (foot) there is a vertical retaining wall, secured from the back side with buttresses. The spatial rigidity of the retaining wall is provided by a cross system of walls, a retaining wall and buttresses rigidly fixed on a monolithic reinforced concrete sole, a foundation slab on a natural base. Alluvial soils are taken as the bearing base for the supporting surface of the retaining wall sole: sandy sandy loamy grayish-brown with plastic plant remains. The cross section of the sole and the vertical retaining wall is variable, from 500 mm to 250 mm. Other slabs of constant section: buttresses and back wall 250 mm, light tower base plate 300 mm thick. All monolithic reinforced concrete load-bearing elements of the snow catchment sections are designed from concrete of class B25 in terms of strength, reinforcement of class A500C. Metal structures All factory connections of structural elements are welded, field connections are indicated in nodes. Minimum legs of fillet welds shall be taken according to Table 38* of SNiP II-23-81*. Materials for welding corresponding to steels shall be taken according to table 55* of SNiP II-23-81*. In the factory, for welding elements, semi-automatic welding in a carbon dioxide environment should be used in accordance with GOST 8050-76. Welding wire grade Sv-08G2S according to GOST 2246-70* or flux-cored wire grade PP-AN-8. In manual arc welding, use electrodes of the E50A type for welding parts made of low-alloy steel, and electrodes of the E42 type according to GOST 9467-75 for welding parts made of carbon steel. Welded seams with grooves should be performed with full penetration, with obligatory cleaning and subsequent welding of the root of the seam. Lead the beginning and end of the welds outside the welded parts on the initial and lead-out strips, followed by removal and cleaning of the installation sites. All elements of a closed box section at the ends must have plugs welded with a tight seam. Slots in these elements must be welded with solid seams to prevent moisture from entering the pipes. The quality of welded joints must comply with Appendix "B" and clause 4.10 of GOST 23118-99. Identified defects in welded structures should be examined and corrected. The bolt holes are 3 mm larger than the bolt diameter. Protection of steel structures is carried out in accordance with the instructions of SNiP 03.04.03-85 "protection of steel structures against corrosion" and SNiP 2.03.11-85. The surfaces of metal structures to be prepared before painting should not have burrs, sharp edges (with a radius of less than 0,3 mm), welding spatter, burns, flux residues. Surface preparation should include cleaning of oxides (mill scale and rust) and degreasing. The surfaces of metal structures must have the second degree of protection against oxides in accordance with GOST 9.402-80 and the first degree of degreasing. General cleaning of the surface of metal structures from oxides should be carried out by shot-blasting or shot-blasting methods; local (for example, welded seams) by shot blasting or hand tools. Metal structures are primed in 2 layers GF -021 GOST 25129-82* (both at the manufacturer's factory). Metal structures should be painted with AC-182 GOST 19024-79 enamel in 3 layers. The total thickness of the paint coating is 80 microns, including the primer. Damaged during welding work at the installation, restore the color at the installation according to the project. Slinging, intra-factory transportation, loading onto a vehicle, unloading and installation must be carried out in ways that exclude damage to the coatings. When performing work on surface preparation and painting of metal structures, the requirements of the current regulatory documents must be observed: GOST 12.3 16-87 "Construction. Anti-corrosion works. Safety requirements", GOST 12.3.005-75* "Painting works.