Fabricating, Welding, and Inspecting Turbular Structures

Tubular structures may range from relatively simple sign poles to complex towers for offshore drilling platforms. They may use pipe or box (square or rectangular) tubes. When a designer selects tubular members for a frame or truss, it is relatively easy to si/e the members for axial loads, in-plane or out-of plane bending, and occasionally, torsional loads.