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Built Up Section Weld Design. Staad.pro designs the section assuming the weld is strong enough to withstand the worst member load. In box column section, it is practically not feasible to stick to fillet weld.
However, i'm not sure how to determine the load on the welds as shown in the attached sketch. These are members made up by a fabricator from two or more standard sections. Scpi bldg., amang rodriguez ave., bo.
Solved Example 5 A Column Is Built Up By Welding Grade 3
Welding of built up i section member dear all for built up i member, commonly used in peb structures , aisc and is has suggested to go for single side and double side welding respectively. Fillet welds, being the least expensive and easiest weld type, are the preferred and most common weld type for hss connections. These are members made up by a fabricator from two or more standard sections. The assumption is that you are talking about connecting elements like flanges and webs using plates to create a girder / beam.