What is site release? How do you go about placing it?

Construction site release is one of the basic skills of construction managers. The beginning of each construction project construction is the construction positioning line, it is related to the success or failure of the whole project. Due to the misplacement of the house caused by the wrong release line, can not meet the requirements of the functional facilities of the phenomenon, it is not uncommon. Construction alignment is to ensure the quality of the project is a vital link.

General rectangular building alignment technology

The first step of construction alignment is to review the planning of the location of the fixed point of the general construction of the general plan drawn on the coordinates of the planning and technical personnel on-site positioning, and planning of the positioning of the theoretical value of the actual location of the building on-site there is a difference between, be sure to review, correct. The area is very large, the size of the relevant more, with the theory of the design of the coordinates of the error, the design drawings are corrected, and then planning and positioning, re-placing, and connected to the outside of the square and does not match, can only be adjusted according to the actual site is appropriate. Need to synthesize the design intent, according to the actual situation on the site to determine the location, and then lead the control point out of the building field, protect the pile.

The second step is to determine

the building axis, elevation. Conventional practice is to hit the gantry pile, nail nails, mark the red triangle elevation. Then pick up the layering process, in turn, up the bullet line; digging sprinkle gray line, pounding bedding after bullet ink line, special attention, bedding to pop up on the position of the column, and mark the four corners of the red paint, in order to position the column reinforcement. In the ground beam (± 0.000) accurately pop up the axis network, and to review, such as A-B axis between 5000, review should be measured from B-A, and then measure the total length of the building and the axis between the sum of whether it matches.

Extended information:

Construction alignment is through the prior checking of the positioning of the construction works to place. Ensure that the construction works are carried out safely and smoothly in accordance with the requirements of the planning approval, while taking into account the improvement of municipal facilities and environmental quality, and avoiding infringement on the interests of neighboring property rights subjects.

Foundation construction

After the building positioning piles are set, the professional surveyors of the construction unit, the person in charge of the construction site and the supervisors*** will carry out the alignment and measurement review of the foundation project (the supervisors are mainly responsible for the supervision and verification of the side station), and then finally put out the positioning piles of all the building axes (according to the size of the building, the axes can also be placed in intervals), and the axes positioning piles of all the axes are set out according to the planning department's positioning piles (at least 4). All axis positioning stakes are based on the positioning stakes of the planning department (at least 4 stakes) and the construction plan of the ground floor of the building. The tool is a "latitude and longitude instrument".

After the foundation positioning line is completed, the surveyor and the builder at the construction site will put out the edge line of the foundation according to the positioning axis line, and then excavate the foundation. Laying tools: latitude and longitude meter, gantry plate, wire rope, wire pendant, steel tape measure and so on. Small projects may not have a surveyor, it is the construction worker put line.

Body construction

Foundation work construction out of the plus and minus zero, followed by the main body of the first floor, second floor ... Until the main body capping of the construction and release work, release tools: latitude and longitude instrument, line pendant, line rope, ink bucket, steel tape measure and so on. According to the axis positioning piles and the axis datum line quoted from the outside for the construction of the release line. Use the latitude and longitude meter to map the axis line to the building, pop up the axis line on the construction level of the building, and then according to the axis line to put out the columns, walls and other edges, etc., so on each level until the main body is topped off.

Reference:

Baidu Encyclopedia-Construction Layout