Architectural and planning solutions.

Space-planning solutions, as well as the size and location of sanitary facilities, were adopted in accordance with the design assignment, the purpose of the building, technological solutions and design standards: Space-planning decisions were made based on administrative staff - 10 people and the total number of workers - 40 people. Administrative and amenity premises are designed on the second floor built on top of the existing restaurant kitchen and green hall. Reconstructed and newly erected buildings are located on the site in such a way as to maximize the use of the territory for the needs of the enterprise. To ensure the planned increase in the seats of the restaurant hall, a balcony is arranged in two tiers. Wardrobes and toilet facilities are designed in two new extensions being built at the main entrance to the restaurant hall. The appearance of the capital construction object is formed in accordance with the surrounding buildings, consisting of industrial buildings built for the most part in the second half of the 20th century. The buildings are located inside the quarter, limited by buildings along the perimeter.

Space-planning solutions

Architectural and planning solution

Space-planning solutions, as well as the size and location of sanitary facilities, were adopted in accordance with the purpose of the building, technological solutions and design standards SNiP 31-03-01; SNiP 31-04-01; VNTP 5-85/Goskomizdat USSR; The reconstructed building of the printing house is located on the site of a one-story building, while the foundations of the building are partially reconstructed. The reconstructed building is carried out without changing the boundaries. The building is located in the courtyard of the quarter. The building of the printing house is 2-storey with an attic, has an elongated, trapezoidal shape with dimensions in the axes of 52,4 x 26,1 m, the height of the building is h = 12,5 m. Without a basement. The functionally designed building is divided into three parts: administrative; printing shop; The building has two stairwells (evacuation exits), fenced with bricks, with access to the street. The internal view of the capital construction object is formed according to the classical scheme, which is based on the convenience of organizing technological interconnections. On the 1st floor there is a printing production and the minimum delimitation of space by walls and partitions is used. On the 2nd and attic floors, a corridor scheme is used. At the same time, the corridor connects two evacuation stairs, and the transition (evacuation) can be made from any part of the building.

General characteristics of design solutions

Description of natural conditions, relief, foundation soils

The site under consideration, as well as the entire city, is characterized by a moderate, excessively humid climate with unstable weather conditions, which belongs to the II - in the sub-region for the climatic zoning of Russia for construction. In accordance with the conclusion, soils of four genetic formations take part in the geological structure of the site: Technogenic deposits occur everywhere and are represented by bulk and alluvial soils. Bulk soils spread from the surface and are represented by: sandy loam with interlayers of silty sands, gravel, pebbles, construction debris, organic residues. The filling period is more than 5 years. The thickness of the layer is 0.8-1.9m. Bulk soils during the construction of the foundation slab are selected and replaced with a sand cushion. Below, alluvial soils lie, which are fluid sandy loams with interlayers of silty, gravelly and medium-sized sands saturated with water, containing dispersed organic matter. The thickness of the layer is 1.0-3.2m. Lacustrine-marine deposits are represented by sands, sandy loams, loams, and also peaty soils. Weakly peaty soils are located under alluvial soils and are represented by silty sands of medium density and flowing sandy loams saturated with water. The thickness of the layer is 0.2-1.0m. Further, the following layers of soils occur: Silty, water-saturated sands; Dusty gray sandy loams with interlayers of sand are plastic; Medium peaty soils; Loams are soft-plastic. Lacustrine-glacial deposits are represented by: heavy silty brown ribbon fluid loams; loams heavy silty brown layered fluid-plastic. Proterozoic deposits are represented by: grayish-green hard clays. The hydrogeological conditions of the site are characterized by the presence of a groundwater horizon with a free water table at a depth of 1.8-1.9m from the surface. The maximum level is confined to marks of 0.0-0.5m. According to chemical analysis, groundwater is slightly aggressive in relation to concrete.

Structural materials

Concrete class B7,5, B20, B25 in terms of strength, water permeability grade W6 and frost resistance F100 according to GOST 19804-91; reinforcing steel A-III according to GOST 5781-82*; knitting wire according to GOST 3282-74; material of metal structures - steel grades C235-255 in accordance with GOST 27772-88, except for separately specified; materials for welded structures and their design resistances shall be taken in accordance with the requirements of Table 55 of Appendix No. 2 of SNiP II-23-81* for climatic region IIc; welded joints shall be performed by manual welding in accordance with GOST 5264-80N1 with E-46 type electrodes in accordance with GOST 9467-75*. The dimensions of the seams should be taken in accordance with the requirements of clause 12.8 and table 38 * of SNiP II-23-81 *, the minimum legs of the seams should be 5 mm.

Constructive decisions

The structures were developed in accordance with the requirements of SNiP 52-01-2003 and SNiP II-23-81*, TSN 50-302-2004. The calculation of structures was carried out by numerical methods using the SCAD version 11 software package. The load-bearing frame of the building is formed by external and internal brick walls and an internal metal frame. Columns and frame beams are made of rolled metal profiles; channel with parallel edges of shelves 36P, I-beam normal 30B2. Column spacing - 6,55 m. The foundations for the columns are monolithic reinforced concrete columnar type, the walls are lathed. The wall fencing is made of brick. From the inside, the outer walls are insulated with mineral wool. The coating is arranged on metal frames made of rolled profiles resting on a reinforced concrete floor slab of the second floor. Roofing from a metal tile. Insulation mineral wool boards. In the attic part, a false ceiling is arranged. In the building, the interfloor ceiling is planned to be made of monolithic reinforced concrete along rolled metal beams. Floor slab from monolithic reinforced concrete on the ground. Brick partitions are provided on the 1st floor of the production part of the building. On the second floor and attic there are partitions made of gypsum board on a metal frame with sound insulation made of mineral wool boards. The spatial rigidity of the building is provided by load-bearing walls and stairwells united by a monolithic floor slab. External doors - metal, metal swing gates in the workshop. Internal doors - paneled without glazing. Windows - metal-plastic. In the production part, the floors are polymer reinforced. The floors in the living quarters are linoleum, the toilets are tiled, the ceilings are plastic lath. In the administrative premises, the floors are linoleum, suspended ceilings of the "Armstrong" type, wall decoration is plasterboard with fintex pasting and PVA painting. The attic floor is made of metal frames. Covering the attic from metal tiles is carried out on the flooring from the board t = 50 mm. Insulation from mineral wool slabs (NG group) laid in the interbeam space. In the course of reconstruction, in order to absorb the loads from the floors being built, the existing foundations are strengthened. Work to strengthen the foundations is carried out after the dismantling of the ceilings. To increase the bearing capacity of strip foundations, a widening of up to 1,0 m is arranged. The widening is made of monolithic reinforced concrete. Reinforcing bars are passed through the existing rubble foundation, ensuring the compatibility of work. In the inner part of the building, additional columnar foundations are arranged. The floor slab is made on a rammed base. On the columnar foundations, metal columns are installed from twin rolled channels 36P, along which metal beams from I-beams 30B2 are installed.

Protection of building structures against corrosion

Protection of building structures against corrosion is developed in accordance with the requirements of SNiP 2.03.11-85. The primary protection of building structures is ensured by the use of building materials that are corrosion-resistant for a given environment. In accordance with the studies of the hydrogeological conditions, the water construction sites are classified as non-aggressive. Therefore, when constructing the foundation slab structures, ordinary W4 concrete is used. To protect the structures of brick walls, horizontal waterproofing is provided (from the effects of groundwater) and the surface of the walls is painted with paint and varnish compositions on plaster (protection from the effects of gaseous and liquid media). Protection of floor structures of the 2st floor is achieved by installing a foundation slab at a mark above the maximum groundwater level. Biological agents - wood-destroying fungi - have an aggressive effect on wooden structures, causing biological corrosion of wood. Protection of wooden structures from biological corrosion is provided by antiseptic treatment or coating with paints and varnishes. Protection of metal structures of ceilings and coatings from corrosion, operated in a non-aggressive environment, is provided by painting in XNUMX layers with group I paint and varnish compositions on cleaned and primed surfaces. Metal enclosing structures (external walls, roofing) are protected by a polymer coating. The metal structures of the stairs are protected from corrosion by plastering over a metal mesh, followed by painting.

Protection of building structures against corrosion

Protection of building structures against corrosion is developed in accordance with the requirements of SNiP 2.03.11-85. The primary protection of building structures is ensured by the use of building materials that are corrosion-resistant for a given environment. In accordance with the studies of the hydrogeological conditions of the water construction sites, they are classified as slightly aggressive with respect to concrete. To protect the foundation structures from the effects of water during periods of its maximum level, a sand cushion and drainage are provided. For the construction of foundation slab structures, concrete of class B25 is used in terms of strength, water permeability grade W6 and frost resistance F100 according to GOST 19804-91; Protection of the floor structures of the basement floor is achieved by installing a foundation slab at a mark above the maximum level of groundwater and waterproofing. Protection of metal structures of the frame, ceilings and ramp coating from corrosion, operated in a non-aggressive environment, paint with two layers of primer GF-021 in accordance with GOST 25129-82 to protect against corrosion. The quality of the coating must correspond to class V according to GOST 9.032-74*. After the installation of structures, the damaged anti-corrosion coating should be restored by painting twice with GF-021 primer. After coating the metal with a flame retardant composition, painting with PF-115 enamel is carried out for 2 times. Metal enclosing structures (outer walls) are protected by a polymer coating.