The residential complex is the volume of variable storeys of 28-30 floors with an above-ground 5-level parking lot. Ventilation, air conditioning and smoke removal

General part

The designed Residential complex with underground multi-tier parking is located at:

Brief description of the object

The residential complex is a variable floor capacity of 2830 floors with an above-ground 5-level parking lot.

The entrances to the residential building are designed from the level of coverage of the stylobate, which, due to the difference in relief, comes out with one above-ground level along the internal passage. At the 1st level of the parking lot, a car wash for 6 posts was designed from the side of the internal passage. Parking is provided at the entrance to the wash. The entrance groups have a lobby, a concierge room, a bathroom. Vertical communication with garage levels is carried out using transfer elevators from the lobby of a residential building. The building has designed additional functional rooms that meet the requirements for buildings above 75 meters.

A 3-level office extension has been designed along the street. 3 floors of the building along the projected passage also office purpose. The natural difference in relief dictated the organization of office entrances at various levels. Entrances, exits to the parking lot are designed from elev. 133.500 in the area of the existing checkpoint and at elevation 137.65 at the entrance to the territory of the designed building. The entrance to the parking lot of the office at the elevation of -6.800 is designed from the side of the street. Each residential section of the housing is provided with the necessary number of elevators, evacuation stairs. garbage and engineering communications.

Number of residential floors 2527. Set of apartments 2x; 2x; 4x; 5 and 8 rooms.

Terraced apartments with an operated roof are designed at elevations.

Technical and economic indicators

Building area m2.

Construction volume - 398420.0 m3;

above 0.000 - 230350.3 m3;

below 0.000 - 168069.7 m3.

The residential building consists of three sections of 283028 floors with upper technical floors in each section:

section 1 in AN/19 axes;

section 2 in axes GN/1018 (at el. + 95.950 apartments are located in axes

Mr. N/7-21, with balconies - in axes GN/424);

section 3 in axes AN/1927 .

The elevation of the last upper residential floor (section 2) is + 95.950.

The elevation of the upper technical floor is + 99.600.

The height of the building, determined in accordance with SNiP 210197 *, does not exceed 100 m.

1. ventilation systems

The section "Ventilation" of the residential complex is developed on the basis of:

Architectural and construction drawings;

Requirements of regulatory documents of the Russian Federation;

Technical assignment for the development of the project;

Special technical conditions of fire protection of the complex.

The equipment of the building with the proposed engineering systems provides the required parameters of the microclimate of the premises at the level of modern requirements, including reliability and operational efficiency.

All systems are equipped with automatic control, control and remote control of the automated control system (ACS) of the building.

4. general ventilation systems.

In the residential part of the building there are mechanical exhaust ventilation systems with an influx of fresh air through the Aereko window valves, independent for each fire compartment. To remove air from the premises, vertical individual channels are designed for kitchens, bathrooms, and storerooms with connection to collector satellites. Connection of exhaust apartment air ducts of the upper residential floor of each fire compartment to prefabricated headers is performed through air closures. Prefabricated exhaust manifolds are located under the ceiling of the elevator hall on the upper floor of the fire compartment with installation of fire valves on connections of apartment exhaust manifolds.

Ventilation systems provide ambient air flow in accordance with sanitary and hygienic standards.

Plenum ventilation with heat recovery is designed in the office part of the Residential Complex and provides the required air parameters depending on the purpose of the premises and taking into account the required air exchanges. Division and integration of serviced areas of ventilation systems is carried out according to functional purpose, microclimate parameters and operation modes of serviced rooms, as well as taking into account fire compartments.

Main ducts of rectangular section of supply and supply systems are made of galvanized steel 0.5 mm thick (for duct rib up to 250 mm); 0.7 (up to 1000 mm); 0.9 (up to 2000 mm and larger). The degree of density of air ducts corresponds to class "A" in accordance with the international classification of air ducts and class "H" in accordance with SNiP 41012003. Plenum and recirculation ducts of general exchange ventilation are heat insulated with 50 mm thick mineral wool mats with foiled external surface. Air ducts on the air intake part of the plants are heat insulated with Thermaflex material with foiled surface and thickness sufficient to prevent condensation on the outside of the air duct.

In accordance with the current regulatory documents, all transit air ducts are covered with fire-retardant materials to ensure the required fire resistance. When air ducts cross partitions with a rated fire resistance limit, the gap between the wall and the air duct is tightly sealed with non-combustible materials. When air ducts cross fire walls, partitions and ceilings, fire retardant valves shall be installed with fire resistance rating in accordance with regulatory documents. All fire retardant valves are accepted with electric drives complete with 72 ° C thermal locks .

Condensate removal from pallets of central air conditioners is performed with hydraulic lock with height determined by calculation.

The equipment is controlled from electrical panels. All display devices are available and are in close proximity to the units.

Plenum and exhaust plants are located taking into account the convenience of their operation, as well as taking into account the technical possibility of installing (dismantling) the main equipment.

Composition of plenum plants of general ventilation systems serving storage, household and technical premises:

Flexible inserts

Two EU4 filters

Air heater 95 ° С - 70 ° С

Fan

Plate heat exchanger

Noise suppressor

Plate recuperator

Plenum ventilation systems of offices are designed and installed by tenants.

Air exchange in parking rooms is calculated in accordance with MHSN 5.0101 (with modification and additional from 15.07.2003), as well as taking into account the requirements of ONTP 0191.

The design provides for the equipment of each fire compartment with independent plenum ventilation systems with mechanical motive. Supply systems for each floor and technical premises are designed separately. Exhaust parking facilities are equipped with a standby electric motor. Supply air is supplied concentrated along the driveways. Air removal is carried out at equal costs from the upper and lower parts of the parking lot.

5. smoke ventilation systems

Smoke ventilation systems are provided to ensure fire safety in the premises of the Residential Complex.

Smoke ventilation systems are made in accordance with the "Special specifications for the design of fire protection of a residential building with an underground parking lot." Performance calculation of smoke ventilation systems is performed in accordance with the requirements and recommendations of SNiP 41012003, MGSN 4.0494 *, MGSN 4.192005.

Smoke removal fans serving the above-ground part must remain operational at a temperature of 400 ° С for at least 2 hours, and smoke removal fans serving the parking lot must remain operational at a temperature of 600 ° С for at least 1 hour.

In the parking room, smoke removal systems are provided, each of which serves the smoke zone no more than 3000m2.

The parking ramps have their own exhaust smoke ventilation systems.

Air ducts with normalized are laid in the space of the set ceiling

fire resistance rating. The range of smoke valves is designed to be no more than 20 m, the maximum distance to one side of the corridor is up to 20 m.

Air ducts are made of black sheet steel 1.5 mm thick, welded with a continuous weld and correspond to density class "P." Air ducts shall be covered with fire-retardant composition certified in the SGPS in accordance with regulatory requirements (EI45 from corridors and halls, EI60 from premises, EI150 transit air ducts).

Channel air pressure fans are provided, which are installed in the technical rooms of the Residential Complex and roof fans installed openly on the roof. Fans provide air supply to the shafts of elevators, staircases, locks (based on provision of 20 Pa on the open door of the lower floor, with pressure limitation on closed floor doors 150 Pa, according to SNiP 2.04.0591 *).

Autonomous smoke removal systems provide:

• fire compartments of underground parking lot (PO No. 14);

• isolated underground parking ramp;

• corridors and halls of the office part (software No. 5 and software No. 6);

• out-of-apartment corridors and lounges of the residential part (PO No. 7 and PO No. 8).

Air overpressure systems provide:

• all elevator shafts;

• all non-smoke staircases of H2 type;

• tambour locks in front of entrances to non-smoke staircases H2 on above-ground residential floors;

• to the air lock in software No. 5 before exiting the non-smoke staircase of H2 type in axes K1L1/56 to the lobby at elevation -4.000;

• to the tambour-lock before entering software No. 5 at elevation -4.000 for process communication with software No. 4 to the non-smoke staircase of H2 type, evacuation for software No. 4 (see item 5.2 of this PSTS);

• to the air locks before exiting the elevator on the floors of the underground parking lot;

• tambourschluss connecting underground parking spaces with adjacent rooms that are not part of it;

• for air curtains of fire gates and doors at exits (exits) from car storage rooms in an underground parking lot to an isolated ramp.

Principle of operation of smoke systems in underground parking:

The smoke removal system from the underground parking lot serves 1 smoke zone with an area of ​ ​ 774m2 to 2779m2.

The project provides for smoke removal from the upper zone using smoke valves. For each smoke removal system, a fan with fire resistance of 1 hour at 6000C is provided. Each smoke removal system has a backup fan:

In case of fire (According to SNiP 41012003, smoke removal in case of fire is designed to ensure evacuation of people from the building premises in the initial stage of fire that occurred in one room):

▪ All general ventilation systems shall be disconnected;

▪ fire-retardant valves (connecting floor-by-floor prefabricated air ducts to the vertical header) located outside the fire floor will close;

▪ fire-retardant valves installed in vertical sections will close

air ducts (designed to remove air from the lower parking area);

▪ the fire-retarding valve installed in front of the general ventilation fan is closed;

8. noise and vibration protection measures

Heating and ventilation systems are designed taking into account the requirements of SNiP 23032003 "Noise Protection."

Ventilation systems are equipped with noise silencers, ventilation units on vibration isolators, flexible inserts for connection of suction and pressure nozzles of fans, which provide the normalized noise level from the operated equipment. Panels of housings of plenum and exhaust units are provided with insulation with noise absorbing material.

9. energy-saving activities

The following solutions are used in order to fulfill the requirements of IPSC 20199 and in order to save energy resources in the project:

heat consumption for the parking ventilation systems is carried out in accordance with the parking mode. Each fire compartment is equipped with supply and exhaust systems. The ventilation systems are switched on automatically from the carbon monoxide sensors located in the parking room at the indication of CO 40 mg/mZ and is switched off at the readings 10 mg/mZ. Thus, during the night period and during the period of low operation of parking spaces, the consumption of thermal resources for ventilation systems will be reduced;

general ventilation systems of office premises are equipped with recuperative heat exchangers for heat recovery of exhaust air.