Organization of construction of a nine-storey one-section residential building

Contents

Characteristics of the construction site

Building Plan and Section

List of prefabricated elements

4. Design of Construction Production Organization

4.1. Determination of labour intensity of works

4.2. Selection of construction production organization method

4.3. Building a Network

4.4. Define Network Duration

4.5. Schedule work requirements

5. Construction Plot Plan Design

5.1. Select a crane, associate it, and define coverage areas

5.2. Calculation of areas of temporary buildings

5.3. Calculation of open storage areas

Design of temporary construction roads

Calculation of water and electricity demand

7.1. Calculation of temporary power supply demand at the construction site,

selection of transformer substation, its binding and design

temporary mains

7.2. Calculation of demand for temporary water supply, selection of diameter

temporary pipeline

List of used literature

Graphic part (Appendix 1)

1. Characteristics of the construction site

Object name: 9-storey single-section house

Building area: 236 m2

Construction volume: 8735 m3

Construction duration: 6 months

Preparatory period: 1 month

Design of Construction Production Organization

4.1. Determination of labour intensity of works

When calculating a human day and a machine man, the duration of one shift is taken equal to 8 hours.

4.2. Selection of construction production organization method

The method of organization of construction production is selected on the basis of analysis of space-planning and structural solutions of the building. In order to achieve the specified construction duration, the maximum possible combination of work on the site should be provided. The fulfilment of this requirement can be achieved by applying an in-line method of organizing construction.

To implement the in-line method, the entire range of work at the site is grouped so that each set of work can be performed by a link or team of workers of a given professional composition. This takes into account the combination of professions. The labor intensity of each type of work performed by the link or team of the corresponding professional composition is determined by summing up the labor costs (or machine operator) for all works included in this complex of work.

The division of the object into grips (sections) is carried out by grouping the same type of parts of the building (section, span, temperature block, floor, tier, etc.). The number of grips depends on the size of the entire work front on the site and is determined by grouping individual parts of the building. Labor intensity of works is distributed in proportion to the volume of works on grips.

4.3. Building a Network

The construction of the network consists in establishing the technological sequence of construction work. During the in-line organization of construction, the works are located in a technological sequence with the connection of their beginning and end by grips. The execution of construction work on each capture is considered as an independent work of the network.

Installation of process equipment, commissioning, plumbing and electrical installation works, as well as commissioning of communications on the schedule are located in connection with the performance of civil works and are not divided into grips.

The preparation of the territory, landscaping and unaccounted for work are independent works of the network schedule and are also not divided into captures.

Once the process sequence has been established, a vertex network is constructed. Network activities are encoded, and the number of the previous activity must be less than the number of the subsequent activity.

Design of temporary construction roads

Installation of installation cranes near the building under construction is carried out taking into account the safety distance between the building and the crane. The drawing shows the reference of cranes and crane tracks to the axes of the object under construction, as well as the working, installation and hazardous areas of cranes.

Traffic diagram and location of temporary roads at the construction site shall be designed taking into account access to the area of the installation cranes, loading and unloading mechanisms and to warehouses. When developing a traffic pattern, it is necessary to provide circular construction roads, on the dead end sections of which traveling and turning platforms are arranged. The width of the roads is accepted: with one-way traffic - 3.5 m, with two-way - 6 m, the minimum radius of rounding is 12 m. In the purchased warehouses in the material unloading zone, platforms with a width of 6 m and a length of 12 m are arranged. - 18 m. Minimum distance between temporary road and warehouse is 0.5 - 1 m, and between the road and the fence - from 1 to 1.5 m. Dangerous sections of roads are indicated by hatching. At the exit from the construction site, a wheel washing point should be located. According to fire safety rules, a circular bypass with a width of at least 6 m should be designed around the object.

Open warehouses on the construction site are located in the area of ​ ​ the installation crane.

Temporary buildings are placed on areas that are not subject to development and outside the hazardous areas of crane operation. Domestic premises should be located near the entrance to the construction site and not closer than 50 m from the object under construction. The distances between temporary buildings should be at least 0.6 m. Residential campuses are equipped with all the necessary temporary engineering networks: electrical lighting, water supply, sewage, electric heating and telephony. The area of ​ ​ the territory of the domestic town per worker should be 836 sq.m. The distance from the most remote workplaces to toilets and heating rooms shall not exceed 100 150 m.

Temporary transformer substation shall be located in the center of electrical loads and not further than 250 m from power consumers. From it, an electric network is laid directly to consumers. The network can be ring or radial. To illuminate the construction site and temporary buildings, an independent air power network is provided. Floodlights are placed on the construction site taking into account the peculiarities of the illuminated area layout and the purpose of separate work areas. Masts can be located along the perimeter of the construction site or directly in the illuminated area. The distance between the floodlights shall not exceed four times the height of their installation (30-300 m).

Temporary water supply networks are arranged according to ring, dead end or mixed scheme. Fire hydrants are located on the water supply network at a distance of 150 m from each other, 5-50 m from the erected building and no further than 2 m from the edge of the road.

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