ABSTRACT
The main elements of the plate girder are top flange, web and bottom flange; see Figure 14.1a. They are normally selected from the same steel grade and assembled by fillet weld. The stiffeners (see Figure 14.1b) are normally used to help to
• Resist the web buckling • Provide support to concentrated loads • Provide supports to reactions
Plate girders are used mainly in steel bridge and building structures where long span beams are required and especially
1. In cases where a rolled section would need to be spliced and as a result may be inefficient.
