Insert the steel structure:*. Insert a column:-Before mounting the steel column to check the position of the nail, the working title, use geodimeter (Hydro) to check. The inspection is performed according to the technical requirements of design and tolerances in table 2 attached. the test results are logged and docking on the complete profile.-The placement of the columns on the premises are correct or not is by preparing the surface of nails good or not good. There are 3 methods of preparation of steel column Foundation:-First method: place the columns above the nail in the right high-process design. This method requires the accuracy when machining, surface concrete foundations are really flat.-The second method: put up a live titled Bhikkhu reinforced by steel buried available in true design level.-Mounting method: place the predecessor column of steel column base plate upwards, this plate has been fitted correctly in design on concrete foundation was poured before.-The body column and base columns defined the way the heart and get high marks for convenience for checking process, can also be mounted to the floor and the operation on the column to make associated beams and roof truss.-Steel column Assembly process is similar to inserting a reinforced concrete column: can force columns in right under the bridge beams for support paint run, forced to be wooden or rubber cushion to the cable being terminated due to fracture of friction. Also can force columns in the column head 2 wings, this is when the column crane up, column will stay upright easily dóng cross the heart and ease the cage on the bolts at the foot of the column.-After the installation is completed using cranes or file to adjust the column, check the vertical columns by Plumb or theodolite by heart lines inscribed on the column and on the nail for polymerization to ensure in the column at the right location.
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