Prefab Steel Structure Workshop 1. The detail material for the steel structure I beam It gets its name from the fact that it looks like a capital I when you see it from its cross section. With an I-beam, the height of the cross section is higher than the width of its flange. Beams shall be braced to satisfy the requirements for moderately ductile members in Section D1.2a. In addition, unless otherwise indicated by testing, beam braces shall be placed near concentrated forces, changes in cross section, and other locations where analysis indicates that a plastic hinge will form during inelastic deformations of the C-IMF. The required strength of stability bracing provided adjacent to plastic hinges shall be as required by Section D1.2c. sutomatic submerged arc welding after H type steel structure being assembly,automatic submerged arc welding(gantry w…