How to set out the column in the construction of building engineering?

1. After the building positioning piles are set, the professional surveyors of the construction unit, the person in charge of the construction site, and the supervisor will pay off * * * to review the foundation engineering.

2. Finally, release all positioning piles of the building axis. All positioning piles of the axis are set out according to the positioning piles (at least 4) of the planning department and the construction plan of the bottom floor of the building. The pay-off tool is "theodolite".

3. After the foundation positioning and setting-out, the surveyors and constructors at the construction site will set out the foundation sideline according to the positioning axis to carry out foundation excavation. Pay-off tools: theodolite, gantry plate, rope, pendant, steel tape measure, etc. Small projects may start without surveyors, that is, builders.

Extended data

Construction setting-out ensures that the construction project can be carried out safely and smoothly according to the requirements of planning approval through the prior inspection of the positioning and lofting of the construction project, and at the same time, it takes into account the improvement of municipal facilities and environmental quality to avoid infringing on the interests of adjacent owners.

During the first setting-out after the start of the construction project, the personnel involved in the building positioning are: surveyors (professionals) from the urban planning department and the construction unit, positioning according to the building planning positioning map, and finally forming (at least) 4 positioning piles at the construction site. Pay-off tools are "total station" or "advanced theodolite".

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