Water supply of 6-storey residential building

Contents

1. Internal water supply of the building

Design Input

1.1Development of internal water supply scheme

1.2 Internal water supply axonometric diagram

1.3 Hydraulic calculation of the internal water supply network

1.3.1 Selection of dictating point and calculation path

1.3.2 Determination of flow rate in sections of design path

1.3.3 Determination of head losses by length of design path and

local pressure losses

1.3.4 Selection of counter type and determination of head losses in counter

1.3.5 Determination of the required head in the internal water supply

2. Internal sewage system of buildings

2.1 Determination of the slope of the yard network and elevations of wells and outlets

2.2 Section along yard sewage system and sewage network section

2.3 Calculation of releases and yard network

2.3.1 Determination of flow rate in design areas

2.3.2 Calculation of releases and yard network

3. Building drains

3.1. Development of a scheme for the rainwater diversion system

3.2. Calculation of drains

List of used literature

Graphic part:

Floor Plan 1. Basement Plan

Water Line Axonometric Diagram

General plan

Cut along the yard sewage system

Internal water supply axonometric diagram

After the development of the internal water supply scheme, the corresponding study of it on the plan of the first floor (indication of sanitary devices, submarines, risers) and on the plan of the basement (drawing of risers, highways with connections to risers, water metering unit and final entry section), an axonometric diagram of the internal water supply was designed. This diagram indicates the entry with the adjacent section of the city water supply, the water metering unit, the main with connections to the risers, the risers and the initial sections of the pipelines with valves on them. On the upper floor, the inlet is shown completely together with the devices attached to it (see plan). Isolation valves on the network, geodetic elevations of the inlet, main line, floor and crane of the dictating device, diameters of the network sections are also shown.

Cut-out on yard sewage and sewage network section

The profile shows the elevation of the ground surface, the length of the parcels between the structures, the slope and diameter of the network, the depth of the structures and their numbers.

Building drains

3.1. Development of a scheme for the rainwater diversion system

The removal of rain and meltwater from the roofs of buildings can be carried out by unorganized free discharge of water along the eaves of the cornice and by organized drainage of water along the external and internal drains.

Depending on the design of the attic roof, drainage can be carried out on one or both sides of the building. From flat roofs, drainage is provided necessarily for external or internal drains.

The need for the installation of internal drains is established when solving the architectural and construction part of the building design, internal drains should ensure the removal of rain and meltwater from the roofs of buildings at any time of the year.

The system of internal drains consists of gutters, risers, branch (suspended and underground) pipelines and outlets. It is planned to divert water from the internal drainage systems, as a rule, to the external rainwater sewage networks. Removal of water from the system of internal drains to the domestic sewage network is not allowed. If there is no rain or public sewage system in the construction area, open discharge of water from internal drains to trays is allowed.

On the flat roofs of sectional residential buildings, one funnel should be provided for each residential section, placing them along the internal longitudinal axis of the building.

Underground drains of the network serve to divert rainwater from the downpipes or to combine several downpipes with a single outlet device.

In residential, public and industrial buildings, branch pipelines from funnels can be laid in attic rooms, technical floors, basements, underground and in the ground.

Minimum slopes of drain pipelines should be taken equal: for suspended pipelines - 0.005; for clandestine pipelines - by calculation.

Risers of drains in heated rooms are recommended to be located away from external walls to provide natural ventilation of risers and to avoid icing of funnels and upper sections of drain risers. Gutters are installed near walls, partitions or columns in order to reduce the laying of the underground gutter network in the building. Risers are located open or in furrows of walls, in boxes and shafts, providing for opening doors at revisions. Grounding of risers into blocks or wall panels is not allowed.

In residential buildings, risers are usually located in staircases near walls that are not adjacent to living rooms, with a minimum number of bends and turns.

In public buildings, risers are placed in staircases, corridors and utility rooms.

At the gutter riser at a height of 1 m from the floor, a revision is established, if there are indents, the revision is also installed above the indents.

To clean the network of internal drains, in addition to revisions, cleaning and inspection wells are installed. The distance between cleaning in straight sections of pipelines shall be taken in accordance with recommendations [6, para. 14.4]. Audits and cleanings are placed in locations available for their maintenance.

Outlets of internal drains are connected to external networks both without a difference and with a difference.

Risers are installed from cast iron sewerage, cast iron pressure, asbestos cement pressure and plastic pipes. Suspended pipelines - from cast iron sewage, steel, asbestos cement and plastic pipes. For the construction of the underground network, cast-iron sewage or water supply, asbestos cement, plastic, ceramic, concrete or reinforced concrete pipes are used.

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