What is the pay off of a building? What does it do? What are the main steps?

Building pay-off is the process of determining its location and its components in the construction process of building engineering.

Mainly with latitude and longitude, the whole station to measure the positioning point, and then on the point to play the wooden village, in the use of infrared station to discuss the stake point to hit the iron nails, put twine on the iron nails, according to the required size according to the site and then sprinkle with ash powder, according to the size of the building and the terrain to choose the theodolite, the whole station, with the level to determine the foundation of the building.

It usually has a carpenter's ink fountain marked with black lines in place and leads to the building axis on the walls at both ends.

According to the size of the need according to the site and then sprinkled with ash powder, according to the size of the building and the terrain to choose the theodolite building line is in the construction process of the construction project, and then on the point of the wooden village, with the level of the decision of the foundation of the building.

It usually has a carpenter's ink fountain marked with black lines in place and leads to the building axis on the walls at both ends.

In the use of infrared station to drive iron nails on the wooden stake point, and then on the point to hit the wooden village, the whole station is used for the foundation positioning of the building and the size and location of the building.

Engineering construction pay-off is the foundation work of the building, which is used for the foundation positioning of the building and the size and location of the building.

Mainly with latitude and longitude, the whole station to measure the positioning point, and then on the point to play the wooden village, in the use of infrared station to discuss the stake point to hit the iron nails, put twine on the iron nails, according to the required size according to the site and then sprinkle with ash powder, according to the size of the building and the terrain to choose the theodolite, the whole station, with the level to determine the foundation of the building.

The construction pay-off is to ensure that the construction project is carried out safely and smoothly in accordance with the requirements of planning and approval through the prior inspection of the positioning and lofting of the construction project, and at the same time take into account the improvement of municipal facilities and environmental quality, so as to avoid infringing on the interests of adjacent property rights subjects.

Building positioning is the first pay-off after the start of the housing construction project, and the personnel participating in the building positioning are: the urban planning department (subordinate survey team) and the surveyor (professional) of the construction unit, positioning according to the architectural planning positioning map, and finally forming (at least) 4 positioning piles at the construction site. The pay-off tool is "total station" or "more advanced theodolite".

After the construction enters the site, the construction unit will transfer two to three coordinate datum points to the construction company, which are generally given by the planning and design institute, and now it is generally necessary to give multiple coordinate points with GPS. Small and medium-sized new projects can also require the planning and design institute to release the coordinates of the four corners of the house of the engineering building. This kind of reference point is the most original basis for the construction enterprise to realize the establishment of the control network of the engineering construction plant area and the verification of the coordinate point, so these reference points must be protected.

If you are a beginner, you must first understand how to use the total station, and this kind of trainee who has just entered the construction site is professionally taught by a master. After the excavation of the basic foundation pit, the positioning pile must be set first, and there are generally 4 points. After the positioning pile is set, according to the construction plan, RTK should be used to specify the corner point of the foundation cushion cap, which is convenient for workers to construct on site.

Accurate positioning of the bottom plate reinforcement of the foundation cushion cap The positioning of the bottom plate column wall is set off to reach the plus or minus zero, which must be specified at two points in the podium, and then the instruments and equipment can be used to lead the point to each building.

Earthwork backfill development design, the deep foundation pit of high-rise buildings is very deep. Generally, after the earthmoving company transports the upper layer of earthwork, after leveling the site. General contracting will appear with technical professional surveyors with RTK handles, important coordinates and high-rise residential buildings.

Pull it to the vicinity of the door where the foundation pit is to be excavated. The civil construction workers of the remaining subcontractors used spirit levels to create important horizontal and longitudinal center lines. Centerline associations that are used.

Release the foundation pit to excavate the border line.

After the housing construction positioning pile is set, the technical professional surveyors of the construction enterprise, the person responsible for the construction site and the project supervision jointly carry out the construction pay-off and accurate measurement and verification of the construction project (the purpose of the supervision personnel is to supervise and certify the side station), and finally release the positioning piles of all the centerline of the housing building (according to the size of the building can also be the centerline spacing construction pay-off), and all the centerline positioning piles are based on the positioning piles of the planning department (at least 4) and the construction plan of the lowest floor of the building. The special tool for wiring is "level".

Purpose: Locate, transfer and control levels and axes of buildings. Significance:

Through the pre-inspection of the positioning and lofting of the construction project, ensure that the construction project is carried out safely and smoothly in accordance with the requirements of planning approval, and at the same time take into account the improvement of municipal facilities and environmental quality, so as not to infringe on the interests of adjacent property rights subjects. Precautions: 1. In the early stage of construction, you can check whether all parts of the site are consistent with the drawings; 2. Through the layout of the line, the design scheme can be intuitively displayed on site, so that the owner can see the outline of the future home in the early stage; 3. The position of the socket box, light line box, switch bottom box, TV line box and fuse box should be marked according to the horizontal elevation line.

In order to better decorate and improve the sense of living, we must pay attention to the specific location when putting out the line, we need to plan reasonably, we must pay attention to safety issues, and we must pay attention to the slotting of the wall.

1. The first is the positioning of the building, and then the transmission and control of the elevation and axis.

2. Pay-off is the most basic sock town demolition work in building construction, but it is very important.

3. There are several that are not fixed, and the line should be played according to the actual needs. The first is to control the elevation of the plate surface during the concrete pouring process; the second is to facilitate the erector to erect the jujube formwork; The third is to find an elevation for each floor in the decoration stage and control the construction of the floor.

Pay-off is to use measurement technology according to the requirements of the drawings to release the position and size of the structure on the ground or the building, which is only the first step of the building, and you can continue the work after placing the line, such as excavation and pouring. It's all just at this size. Roughly divided into three stages:

Building positioning (pay-off), foundation construction (pay-off) and main construction (pay-off). X0D X0A a, building positioning, is the first time after the start of the housing construction project, the building positioning participants are: urban planning department (subordinate survey team) and the construction unit of the surveyor (professional), according to the architectural planning positioning map for positioning, and finally at the construction site to form (at least) 4 positioning piles.

The pay-off tool is "total station" or "more advanced theodolite". X0D X0A Second, the foundation construction pay-off, after the building positioning pile is set, the professional surveyors of the construction unit, the person in charge of the construction site and the supervision jointly carry out the pay-off and measurement review of the foundation project (the supervision personnel are mainly the side station supervision and verification), and finally release the positioning pile of all building axes (according to the size of the building can also be laid out at the axis interval), all axis positioning piles are laid 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".

After the X0D X0A foundation positioning and pay-off is completed, the surveyors and constructors at the construction site will release the edge of the foundation according to the axis of the positioning and carry out foundation excavation. Pay-off tools: theodolite, gantry panel, wire rope, line pendant, steel tape measure, etc.

Small projects may not have a surveyor, that is, the construction worker will pay off the line. x0d x0a Note: The foundation axis positioning pile must be led to the permanent buildings or fixed objects around the proposed building at the same time as the foundation is laid out, so as to prevent the axis positioning pile from being damaged and used for remediation.

X0D X0A three, the main construction pay-off, after the foundation engineering construction out of plus or minus zero, followed by the main body of the first floor, the second floor. Until the construction and pay-off work of the main body capping, pay-off tools: theodolite, thread pendant, thread rope, ink fountain, steel tape measure, etc.

According to the axis positioning pile and the axis reference line of the external introduction, the construction pay-off. Use a theodolite to hit the axis on the building, pop up the axis on the construction level of the building, and then release the columns, walls and other edges according to the axis, and so on each floor until the main body is capped.

1. The first is the positioning of the building, and then the transmission and control of the elevation and axis.

2. Pay-off is the most basic work in building construction, but it is very important.

3. There are several kinds of non-celery fixation, and the elastic line is carried out according to the actual needs. The first is to control the elevation of the plate surface during the concrete pouring process; the second is for the convenience of the erector to erect the formwork; The third is to find an elevation for each floor in the decoration stage and control the construction of the floor.

<>1. First of all, the positioning of the building's Huai form, and then the transmission and control of the elevation and axis.

2. Pay-off is the most basic work in building construction, but it is very important.

3. There are several kinds of unfixed, and the line is played according to actual needs. The first is to control the elevation of the surface of the transport plate in the process of concrete pouring; the second is to facilitate the discussion of the beam erector to erect the formwork; The third is to find an elevation for each floor in the decoration stage and control the construction of the floor.