Architectural and space-planning solutions

The designed hotel for 61 residential rooms is a 7-storey building with a basement, the maximum dimensions of the building in the plan are 48,0 x 34,0 m, the height from the planning mark of the ground surface to the ridge of the superstructure is 27,490 m. The hotel is designed for 109 residents. The design documentation on the floors of the building provides for the placement of: in the basement - parking lots for 44 parking spaces for small cars and engineering facilities (ITP, automatic fire extinguishing installation room, ventilation chambers, rooms for bath water treatment equipment and general water treatment, and a water meter unit); on the ground floor - a lobby with a reception, premises for a security and dispatch service and an administrator, a cafe for 30 seats with a sandwich bar, a bath and recreation complex with changing rooms, saunas and a water treatment room; on the second floor - hotel rooms, large and small conference rooms; on floors from the third to the sixth - hotel rooms; on the seventh floor - hotel rooms, staff quarters and a common hall. One, two, three and four-bed rooms are designed with varying degrees of comfort with the number of bedrooms from one to four. A gas boiler room and a ventilation chamber with air conditioning units are designed on the roof. The building provides for the installation of two passenger elevators of 400 kg each and one passenger-and-freight elevator with a carrying capacity of 1000. The hull covering is flat with internal drains, the roof is rolled, with a protective coating of paving slabs "Square" 300x300x40. Exterior finish of the building - porcelain stoneware slabs (basement), NBK Terrart Light natural terracotta panels (walls) and pre-fabricated sandwich panels (walls of superstructures). The project documentation provides for measures to ensure the living conditions of the disabled and people with limited mobility in accordance with the requirements of SNiP 35-01-2001 "Accessibility of buildings and structures for people with limited mobility".

Structural and space-planning solutions

The level of responsibility of the building is normal. The building was designed according to the frame-wall structural scheme of monolithic reinforced concrete. Concrete B30, reinforcement A500, A240. Columns - with a section of 400x600 mm, 400x800 mm, 800x300 mm, 600x400 mm in increments of up to 8 m. Beams in the transverse direction - with a section of 400x600 mm, in the longitudinal direction - with a section of 600x600 mm. Floor slabs and coatings - monolithic reinforced concrete 250 mm thick. The bottom of the pool is a monolithic reinforced concrete slab with a thickness of 300 mm. Internal walls - monolithic reinforced concrete 250 mm thick and 200 mm, wall beams - 250 mm thick and cantilever wall beams 400 mm thick, staircase No. 2 walls - 200 mm thick. External walls - stained glass system and monolithic reinforced concrete walls 400 mm thick on the first floor, above the second floor - 160 mm. Concrete B30, reinforcement A500, A240. External walls in the area of ​​the pylons - masonry of aerated concrete blocks. In the basement, the outer walls are monolithic reinforced concrete with a thickness of 200 mm, 250 mm and 400 mm, made of concrete B30 W8 F150. The outer walls of the underground part below the blind area are provided to be insulated with "polystyrene foam". Stairs - monolithic reinforced concrete platforms and prefabricated reinforced concrete marches, based on monolithic reinforced concrete beams. The rigidity and stability of the building is ensured by vertical diaphragms and rigid frames in the longitudinal and transverse directions, in the horizontal plane - by hard disks of monolithic ceilings. The attached underground part of the building in the axes "I" - "K" is a monolithic reinforced concrete structure designed according to the wall structural scheme. The underground part of the building for technical premises is separated from the multi-storey part of the building by a sedimentary seam. The outer walls in this part are 200 mm and 250 mm thick, the inner walls are 180 mm thick. Columns - monolithic reinforced concrete with a section of 400x400 mm. The coating is designed for the load from a fire engine, the thickness of the coating plate is 350 mm. The foundation of the building is made of piles with a slab grillage. Piles - bored according to the Atlas technology with a diameter of 360/530 mm, a length of 13,3 m from the bottom of the grillage. Concrete piles В30F150W8. Grill plate - 800 mm thick. Concrete grillage В30W8F150. A concrete preparation 100 mm thick is provided under the grillage. Pairing of piles and grillage is rigid. The foundation of the underground part of the building is taken in the form of a monolithic reinforced concrete slab 600 mm thick. The calculation confirmed the stability of the underground part for ascent. The calculation of the building was made on the software package "LIRA" ver. 9.6 and "SCAD" ver.11.3, taking into account the joint work of building and foundation structures. In the calculation, the IV snow region and the wind load for the II wind region, terrain type A were taken. The calculated load on the pile is 138 tons according to the calculation. The relative mark of 0,000 corresponds to the absolute mark of 3.87. In accordance with the technical report on engineering and geological surveys, the tip of the piles is immersed in the EGE-10 soil layer, hard wet sandy loam with φ=280, E=210 kg/cm2, e=0,229. Due to the fact that static sounding of soils could not be brought to a sufficient depth, the project provides for static testing of piles before mass production in order to confirm the bearing capacity of piles. According to the pile tests, it is possible to adjust the foundation design. The basis of the slab of the underground part in the axes I-K is the EGE-3a soil - plastic sandy loam with E = 100 kg / cm2, underlain by EGE-4 soils - silty sands with E = 335 kg / cm2. Protection against groundwater - penetrating waterproofing. In the places of installation of sedimentary joints - waterproofing with the device of compensators. The expected maximum settlement of the building according to the results of the calculation using the PLAXIS software package is 1,6 cm. The technical inspection of the surrounding buildings has been completed. At a distance of 7 m there is a one-story brick building of a transformer substation (built in 1973), at a distance of 15-16 m - a seven-story building of an apartment hotel, a one-story rescue station (built in 1957) and a six-story hotel building (built in 1973) are located at a distance of 30 m. The technical condition of the building of the rescue station and the apartment-hotel is assigned to the first category, the technical condition of the hotel building is assigned to the third category. The building of the transformer substation is assigned to the 3rd category of technical condition. An assessment of the impact of construction on the buildings of the surrounding development was carried out. The calculation was performed using the PLAXIS 3D Foundation software package. Additional settlement of the building of the transformer substation will not exceed 0,7 cm, which is within acceptable limits. The impact of construction on other buildings of the surrounding development is not expected. The project provides for geotechnical monitoring up to the complete stabilization of the sediment. The service life of the building is at least 50 years.