FABRICATION OF PLATE GIRDERS AND COVER-PLATED BEAMS

Abstract

Flange plates may be ordered as worn rolled to the proper width and thickness. No further preparation is required except cutting to proper length and beveling the ends for the butt joint. Some flame fabricators will cut the flange plates from wide plates; Fig. 1. Since there is some shrink-age due to the flame cutting operation, the flange will have a sweep or bend if it is cut along just one side for this reason the flange is made by cutting along both sides, usually with a cutting unit having multiple torches Which are cut at the same time. For girders with a horizontal curve, the flange plates are flame cut to the proper curve.