Architectural and space-planning solutions

 The building being reconstructed is a detached, three-story building, without an attic, with an underground space, the approximate date of construction is 1965 (standard project 2Lg-06-1). The building has a complex shape in plan. It stands on a relief that descends towards the main façade. From the side of the main facade, a stylobate with open stairs is provided. The walls are brick, the coating is flat combined, the roof is rolled. The height of the building is 17,16 m. For the relative mark of 0.000, the mark of the clean floor of the foyer of the first floor is taken. The project documentation in the process of reconstruction provides for: partial dismantling and replacement of existing structures of the stylobate, ceilings, roofing, stained-glass windows, external and internal walls, replacement of trusses above the large hall, dismantling of platforms and flights of stairs; extension of a new 3-storey part of the building - complex in plan, with a basement (basement floor elevation -7.350) in axes 14-17; extension of a new 2-storey part of the building in the P-T1 axes; installation of new staircases, open stairs, elevators and elevators; dismantling and restoration of stage structures; replacement of auditorium equipment; arrangement of the technical platform at the level of 11.25; dismantling and replacement of structures in disrepair (floors, partitions, individual sections of brickwork of external walls and individual sections of interfloor ceilings); replacement of the coating and roofing with the implementation of a new combined coating and rolled roofing, installation of technical superstructures at the roof level; fencing of the standard height along the perimeter of the roof and internal drain; redevelopment of the premises of the building with the dismantling and erection of new partitions and walls; partial laying of window and door openings, arrangement of new door openings in existing brick walls; stained glass installation; dismantling the blind area along the perimeter of the building and making a new blind area 1,0 m wide. The configuration of the stylobate is changing, new stairs and ramps are provided. After reconstruction, the building is three-story, without an attic, with a technical underground, a basement. The height of the building from ground level to the top of the parapet is 22,01 m. The building is complex in plan with overall dimensions of 86 m x 48 m. A block of public premises and a block of administrative and amenity premises were designed in the building, each block has independent vertical and horizontal communication links to separate the flow of visitors to the building, employees and personnel. Basement floor elevation is variable, from -7,350 to -1,200. The following rooms are designed in the basement of the building: Small Hall with a stage 6 x 9 m at the level of -7,350, the height of the hall is 5,55 m; wardrobes for visitors, bathrooms; a museum of media technology with dimensions of 15 x 9 m and a height of 3,6 m with auxiliary rooms at the level of -5,400; a workshop with a height of 3,6 m at the level of -5,40; storage rooms, loading at -2,64; a choreographic hall with a height of 3,92 m at an elevation of -1,200 with dressing rooms, bathrooms, showers, a rehearsal room, a recording studio and a room for storing musical instruments; security post; engineering and technical premises, including a water metering unit with a pumping station, a fire station, a control room, TP, ITP. The floor elevation of the 1st floor is variable, from -0,700 to +3,600. On the first floor of the building, several groups of premises are provided, functionally interconnected. The main entrance with the ticket office, cloakroom, security room, foyer - at around -0,700. A large hall at around 0,000 with a stage, designed for concerts, film screenings, cultural events. The hall with plan dimensions of 29 x 23,07 m is a two-height space and includes a stalls for 735 seats and a balcony for 257 seats. The height of the hall to the false ceiling in the parterre area is 11,0 m. To enter the auditorium, foyers are provided on the left and right sides of the hall with independent exits to the outside. Some of the seats in the hall are removable to increase the free space in front of the stage during cultural events. The demonstration hall at the level of -0,700, 3,6 m high, is designed for exhibitions and expositions. Recreation area for guests of festivals and artists with shower rooms and bathrooms. The first floor also provides for the placement of a cafeteria, a medical office, technical equipment rooms at +3,600 (hardware, light projection, video projection, sound operating room, equipment for communication networks, a TV studio control room), office and auxiliary premises at +3,600, designed to provide the work of the administrative and technical services of the center, including offices, meeting rooms, bathrooms and amenity premises of the staff. The height of the premises of the 1st floor is 3,0 - 4,1 m. The floor level of the 2nd floor is variable from +4,000 to +7,200. On the second floor there are: a foyer equipped with a transformable stage platform; rock culture museum at +4,000 and +6,320; dressing rooms with adjoining bathrooms at elevations +4,000 and +6,320; balcony of the large hall at +6,620 with a foyer having a stepped structure with level marks from +4,00 to +6,320; television studio, offices, bathrooms for visitors and staff at around +7,200. The height of the premises of the 2nd floor is 3,0-5,4 m. An intermediate level is provided at the level of +11,550 with the placement of a room for storing fluorescent lamps. Floor elevation of the 3rd floor +15,630. On the third floor, a cafe with utility and production rooms, a cloakroom and a bathroom for visitors, a room for repairing and storing lamps are designed. The height of the premises on the 3rd floor is 3,3-3,5 m. At the elevation of +14,590, a technical superstructure was designed for laying utilities and placing a ventilation chamber. The building has 4 staircases, two open staircases, two open metal staircases of the 3rd type. The building provides for a significant number of separate flights of stairs with at least three steps in each and ramps with a slope of no more than 5% for access to different levels of floors and basement. The building has 2 elevators, one of which is passenger, the second is a passenger-and-freight elevator with the possibility of transporting a person on a stretcher, 4 lifts for the disabled and a cargo lift for loading products. Exterior walls - existing brick with mineral wool insulation and reinforced concrete with mineral wool insulation, finished with a layer of plaster, painted in mass, as well as hinged "sandwich" panels on a metal frame. The plinth is lined with fiber-reinforced concrete panels. The stylobate is faced with granite slabs. Partitions - depending on the functional purpose of the premises: brick, GKL and GKVL on a metal frame. Filling window openings - metal-plastic window blocks with double-glazed windows. Stained glass glazing - aluminum profile filled with single-chamber double-glazed windows. Interior decoration is carried out in accordance with the functional purpose of the premises from materials that have hygienic and fire certification of compliance for use. In rooms with a wet regime, waterproofing of the floor is provided with an institution on the walls of 300 mm and facing the floor and walls with ceramic tiles. The roof is rolled. The drain is internal. The coating is flat, combined. There is a metal railing on the roof. The project documentation provides for measures to ensure the life of people with limited mobility. There are 2 parking spaces for the disabled within walking distance, no more than 50 spaces from the entrance to the building. The MGN movement paths along the site are provided on a flat, anti-slip surface, ramps and curbstone depressions are provided at the topography differences and intersections of the movement path with the passage. Access to the first floor is provided by a ramp, to all floors of the building by elevators and lifts. The depth of vestibules available for MGN is provided for at least 1,8 m with a width of at least 2,2 m. The depth of the space for maneuvering the wheelchair in front of the doors when opening “towards oneself” is designed to be at least 1,2 m, when opening “towards oneself” - at least 1,5 m with a width of at least 1,5 m. In the stalls of the large hall in the first row there are 8 places for the disabled in wheelchairs. Sanitary units with universal cabins for MGN and fire-safe zones on each floor of the building were designed. A special wardrobe for MGN was designed in the building.

 Structural and space-planning solutions

A survey of the structures of the reconstructed building, which housed the cinema "Priboy", was carried out. In accordance with the technical conclusion on the examination of existing structures, the cinema building was built in 1965 according to the project OJSC "LenNIIproekt" according to the frame-wall structural scheme. The building is 1-3-storey with a basement in the form of a stylobate. In 1987, the building underwent a selective overhaul. At the time of the survey, the building is in operation. The constructive scheme of the building is frame-wall. The spatial rigidity of the building is ensured by the joint work of the longitudinal and transverse walls and the frame with floor and roof disks. External walls - load-bearing, made of clay bricks on a cement-sand mortar, 510-780 mm thick, with an estimated masonry resistance of 1,5 MPa. Cracks in the walls of the stairs with an opening of up to 4 mm were formed due to temperature deformations, different workloads of the walls and uneven settlement of the foundations. The general condition of the walls is operable, the walls of the stairs in the axes "1-3" are partially operable. Internal walls - load-bearing, made of clay bricks, 510 mm thick. Columns: reinforced concrete - section 400 x 400 mm; from steel plastered pipes filled with concrete, 350 mm in diameter (in the foyer, at the entrances to the hall - with a diameter of 450 mm), stage supports - from hollow steel pipes with a diameter of 540 mm. Beams - monolithic reinforced concrete with a section of 400 x 400-600 (h) mm, supported by columns and walls. Concrete B30. Ceilings - prefabricated reinforced concrete ribbed and hollow core slabs. Concrete B25. The general condition of the ceilings is operational, the stylobate ceiling is in emergency condition. Balconies - prefabricated reinforced concrete slabs 120 mm thick on reinforced concrete beams and concrete filling on steel welded beams with two walls of variable height. Reinforced concrete beams - single-span, variable height, with a one-sided console with a reach of 1,83 m, with a step of 3,05 m. .24 m A suspended ceiling is fixed along the lower belt of the trusses. The farms are in disrepair. Part of the cover is with wooden rafters. The general condition of the coating is operational. Elements of stairs - prefabricated steps on steel stringers. The steps of the stylobate are partially destroyed. The foundations of the walls are strip foundations, made of prefabricated reinforced concrete foundation slabs and foundation wall blocks, with the bottom deepened by 2,7 m from the ground. Foundations - from concrete B20. The foundations are in working condition. The base of foundations and foundations are able to perceive an increase in existing loads by 6% -8%. According to the data of dynamic sounding of soils and laboratory determinations, silty sands from loose to medium density with an admixture of organic matter lie at the base of the foundations with the following characteristics: φII = 26-30°, c = 0–0,04 kg/cm2, e = 1,07 -0,622 with design resistance 1,63-2,42 kg/cm2. Stress at the base of foundations is 1,11-1,55 kg/cm2. In accordance with engineering and geological surveys, groundwater is not aggressive to concrete of normal permeability. The maximum position of the groundwater level is at a depth of 1,0 m from the earth's surface. Groundwater is slightly aggressive in terms of hydrogen index to concrete of normal permeability. A verification calculation of the preserved existing structures was carried out. The calculation has established that the bearing capacity of walls, columns, ceilings, foundations is sufficient to absorb existing and design loads, except for emergency structures that are recommended to be replaced. The category of the technical condition of the existing building is 2. The project documentation provides for the reconstruction of the auditorium: replacement of the stage slab and floor slab of the hall. The ceiling is a slab of monolithic reinforced concrete 200 mm thick supported by brick walls. Concrete B30, reinforcement A400, A240; replacement of reinforced concrete structures covering the hall with steel ones. Steel C345 and C255. Trusses - with a span of 24 m, a height of 2,72-2,52 m, with a step of 3,0, composite in length. Truss belts - from rolled I-beams, struts - from twin rolled corners, racks - from closed bent-welded profiles. Spacers along the lower and upper chords of the trusses are made of closed bent-welded profiles. Vertical stiffeners from the truss plane - from rolling corners. Covering - slabs of monolithic reinforced concrete on profiled flooring H75-750-0.8 with a total thickness of 245 mm. Concrete 25, reinforcement A400, A240; dismantling of the wall along the axis "14" with the installation of a new wall 380 mm thick from solid brick 1NF / 125 / 1.8 / 35, masonry - on mortar M75. Dismantling is provided with the preservation of sections in the area of ​​​​adjacency to other walls; reinforcement of walls along the "B" axis and the "H" axis; installation of two elevator shafts made of monolithic reinforced concrete with a wall thickness of 150 mm. Concrete 30, reinforcement A400, A240; installation of a tank made of monolithic reinforced concrete for water. Tank walls 200 mm thick, bottom - 300 mm thick. Concrete 30, W12, reinforcement A400, A240; building a staircase from the first floor to the second; device of additional volume above the auditorium. The constructive scheme of the superstructure is frame-bonded. The frame is steel. Racks - from rolled I-beams and closed bent-welded profiles. Beams - from rolling I-beams and channels. Vertical stiffness ties - from rolling corners; reinforcement of the walls of the existing basement in the area of ​​openings with steel clips; The project documentation provides for the reconstruction of auxiliary premises: dismantling of the wall along axis 2 to a relative mark of +3,520 with the installation of a new wall 510 mm thick from solid brick 1NF / 125 / 1.8 / 35, masonry - on mortar M75; dismantling of the ceiling in the axes "1-3" at the level of +6,570 with the installation of a new one with a mark of the top of the slab +7,100. Ceiling - a slab of monolithic reinforced concrete 200 mm thick, supported on brick walls by supporting sections 400 mm wide with a step of 2,5 m on one side and with solid support on the other side. Concrete B30, reinforcement A400, A240; dismantling of the coating in the axes "1-3" at the level of +9,640 with the installation of a new one with a mark of the top of the slab +10,700 according to the type of overlap at the level of +7,100; insulation of facade walls with mineral wool boards 150 mm thick; finishing of facade walls with a thin-walled plaster layer, in the basement area - with panels of fiber-reinforced concrete, stylobate - with granite; replacement of ladder structures in the axes "1-3/B-C" and "1-3/N-P". Marches and platforms - from monolithic reinforced concrete.