Course project "Sewage pump station building"

Contents

1. Design Program

2. Space Planning Solution

3. Constructive solution

4. Calculation of the wall and bottom of a cast-in-situ reinforced concrete well lowered under the effect of the wall's own weight

5. Heat Engineering Calculation of Enclosing Structures

6. Feasibility study of the design solution

List of literature used

Space Planning Solution

The building of the sewage pumping station has a rectangular shape with plan dimensions of 6 m by 4.5 m. The height of the building, taking into account parapets, is 4.8 m.

The above-ground part of the sewage pumping station consists of one floor. The height of the floor is 3.6 m.

The underground part of the sewage pumping station has a bottom elevation of 7.200 m, counting from the level of the black floor of the first floor. The underground part has the shape of a polygon with 8 angles in plan and has dimensions in axes 1-3 and A-B 4.50x4.50 m.

In the above-ground part of the sewage pump station building there are the following rooms: a room of sealed containers, a machine unit, a bathroom, a prechamber and a ventilation chamber.

In the underground part of the building there is a waste water receiving tank, a machine room with a foundation for pumping units, a working platform and a container room.

The underground part of the building does not have permanent working places. Evacuation from the underground part of the building is solved by two stairs: vertical metal, located in the part of the receiving tank and inclined (slope 2:1) for access to the equipment room.

The outlet from the sewage pump station building is located in direct connection with the machine unit room.

The water supply of the building is provided from the city network. Drainage is provided in the site-wide fecal network.

Heating is solved by installing local heating devices. Heat supply is provided due to water coolant transported via heat supply networks from the local boiler house located outside the designed building.

Hot water preparation is provided due to the local electric heater installed in the sewage pump station building.

Power supply - from transformer substation.

Radialization and telephony - from the external network.

The solution of the facade of the designed building combines simplicity and artistic expressiveness with all available means. The base of the building is lined with decorative stone slabs. The building has a porch made of monolithic reinforced concrete.

Internal and external finishing is decided by application of cement plaster.

Structural diagram of the building

Structural brick walls are provided in the designed building. The thickness of the outer walls is 510 mm. The thickness of the inner wall is 380 mm.

The external structural walls of the building have a reference to the layout axes: the street side of the brick axis is 300 mm from the layout axis of the external perimeter of the building.

Base

The foundation for the designed building is tape, consisting of blocks of solid foundation concrete, resting intermittently on foundation reinforced concrete slabs (pillows), and on a foundation reinforced concrete slab, which is also an overlap for the underground part of the sewage pumping station.

The bottom of the foundation slabs is located at a depth of 1.050 m from the ground surface level.

The underground part of the building is solved by the method of lowering a monolithic reinforced concrete well .

To reduce frictional forces of the well against the ground, the outer diameter of the knife is taken 400 mm more than the diameter of the walls, which ensures the creation of a gap between the ground and the walls.

The bottom plate of the downhole is located at a depth of 7.250 m from the ground surface level.

Waterproofing of the foundations and the underground part of the designed building is solved due to two layers of adhesive roll thickness on bitumen mastic.

Walls

The walls of the designed building are provided from ordinary red brick with a mark not lower than M75 on a solution of the grade not lower than M50. The thickness of the bearing walls is 510 mm.

Overlappings

Slabs of the underground part of the building and the first floor are provided by cast-in-situ reinforced concrete slabs 200 mm thick with working openings.

Coverings

The coating of the designed building is solved by laying plates of ribbed reinforced concrete GOST 2150687.

The roof slope is provided by laying additional layers of the water insulation carpet and is 1:20. Parapets and joints of roofing with parapets are covered with galvanized roofing steel.

Partitions

Partitions in the designed building are made of ordinary brick. The thickness of the partitions is 125 mm.

Ladders

In the designed building, underground spaces and the ground floor are connected by stairs. The engine room and engine assembly are interconnected by a staircase with a metal width of 700 mm with a slope of 2:1. Between the engine room and the engine unit there is a working platform at an elevation of 3.600 from the black floor level of the first floor. The tread width is 260 mm.

The stairs are equipped with railings at least 1200 mm high. Stairways are enclosed with handrails not less than 1200 mm high.

A vertical metal staircase 600 mm wide is provided for access to the container room. The distance between the crossbars is 250 mm.

Floors

The floors are solved by means of a cement sand coating 20 mm thick along a concrete brace 40 mm thick.

Lifting and transportation equipment

For lifting and transportation of pumps, electric motors and fittings, as well as for lifting of sealed containers in the container room and machine unit, suspended crane beams with lifting capacity of 1 t are provided.

Structural solution of tanks

The wastewater enters the receiving pocket for mounting the gate and grids for holding the coarse particles. The detained garbage is collected in hermetic containers and taken to landfill once a day.

Then waste water enters the storage receiving tank, from where it is pumped to the receiving sewage network or to treatment facilities.

The bottom of the receiving tank has a slope of 0.1 to the pit, in which suction pipes are located.

The inner surface of the tank is plastered with cement mortar with hydrophobic additives.

Window and door openings

Window openings are filled with wooden windows 120x120 cm.

Wooden doors are installed in accordance with GOST 14624-84

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