PURPOSE: A U-shaped steel frame and a method for manufacturing side plate of U-shaped steel frame are provided to make a side plate with an increased height by welding a convex part and concave part of the plate. ;CONSTITUTION: A method for manufacturing side plate of U-shaped steel frame comprises the next step. A cutting line(13) is drawn on a board in order to vertically cross a convex part(12) and concave part. The board is partitioned into an upper part and a lower part along the cutting line using an oxygen or laser cutting method. A plurality of paths(22) is formed on a side board(20) in order to make a pipe to pass through a steel beam.;COPYRIGHT KIPO 2011
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