Experimental investigation of welded built-up columns

This report is a summary of the experimental investigation conducted on columns built up by welding from universal mill plates of A7 steel. Particular attention was given to columns of medium size box shape cross section, and their behavior is compared with medium size H shapes and box shapes and H shapes of smaller sizes. The investigation included tensile coupon tests, residual stress measurements, stub column tests, and actual column tests. It was concluded that welded columns are weaker than corresponding rolled columns