Hainan Steel teach you: measuring the preparatory work before the steel column means

(1) The basis of the center line and distance, base elevation of the top and bottom of the cup for review, after fit the planning request, to be able to carry out the work unit.
(2) Steel Hainan each pillar positions are numbered according to the axis and check the column dimensions, whether fit scale drawings request: such as column length, cross-sectional dimension, column base to the surface of the scale bracket, bracket face to the column the top of the scale, etc., are correct before they were playing the line.
(3) in pillar three sides, with the ink lines pop column centerline, each face drawn on the center line, in the next three horizontal mark. And precise measurement of the distance from each marker.
(4) Adjust the elevation of Hainan steel bottom of the cup, check the bottom bracket side to the length of the column to see if it fit the planning request, if not match, it is necessary based on the actual length of the column bottom of the cup trim level, so that the lifting column, the cow Leg elevation plane simply fit planning requests. Specifically: in the inner wall of the measuring cup provided a level line (such as general cup top elevation of -0.500m, the copy in the cup on -0.600m elevation line). Then according to plan corbel surface elevation, with a ruler to measure out the column body position ± 0 and a level line, and painted signs. They were measured out in the cup to the bottom of the cup to a level line height and column to column upon a bottom level line height, and compared to finishing bottom of the cup, chipped away some of the local high and low local filled with cement mortar, The column bottom and the bottom of the cup match. Hainan Steel