How many people are needed for the construction standard floor area of 200 steel workers, concrete workers, scaffolders and technicians respectively? Your answer in 13 has basically become the source

How many people are needed for the construction standard floor area of 200 steel workers, concrete workers, scaffolders and technicians respectively? Your answer in 13 has basically become the source of online answers. The standard floor (according to the general 18-28 high-rise residential building) has a construction area of 2000 square meters, and the number of carpenters, steel workers, scaffolders and concrete workers (including coolies when pouring concrete) required for the main construction (7 days per floor) is as follows:

Woodworking: the contractor needs 50-65 people; Need 100- 130 people to work.

Steel bar workers: 28-38 people are required for contractor; It takes 40-52 people to work.

Scaffolder: 8- 14 people.

Concrete pouring worker: 8- 12 people are needed for pouring the automobile pump; It takes 10- 15 people to pour concrete with a fixed pump.

The comprehensive conditions for calculating the number of the above personnel are considered as follows:

Sectional construction of flowing water: according to an expansion joint (or settlement joint), the staggered construction of flowing water is divided into two sections;

Workload of standard layer: formwork laying area is 3.3-3.7 m2/building m2, and reinforcement amount is 52-58kg/building m2;

Distribution of seven-day construction period: consider stopping work for half a day (rainy day, power failure or other reasons), pouring concrete and curing for 0.5- 1 day; During this period, the steel bar worker can bind for 2.5-3 days (excluding production, the arranged two flow sections can work for up to 5 days), and the carpenter can work for 6-6.5 days (including formwork removal).

The calculation method of the above number of personnel is as follows:

Woodworking: On average, each worker can complete formwork work of18-25m2 per day (including shelving, installation and formwork dismantling). The formwork workload of each floor is 6600-7400m2 (3.3-3.7/ building m2), and the number of working days is 6-6.5 days. Then the calculation formula of the number of people is: the template workload of each floor/the number of templates completed by each person every day. The point work of formwork is slower than that of contractor 1.8-2 times.

Steel bar workers: Generally, workers can complete 0.5-0.7 tons of work (including fabrication and binding) every day, and the steel bar workload is 52-58kg/m2, with 5-6 working days (including production conversion), with an average of 4-8 absenteeism every day. The rebar binding point works slower than the contractor 1.2- 1.5 times.

Scaffolder: Work by the hour; There is only a building area, so the installation workload fluctuates widely.

Concrete pouring workers: According to the staggered pouring scheme of two water sections, only one group of pouring workers is prepared.

Note: The calculation of the above workers' labor ability is based on the actual experience value, not on the labor quota (and the calculation of the actual needs of workers cannot be based on the labor quota).