ABSTRACT
Welded connections between thin-walled cold-formed steel sections have become more common in recent years despite the shortage of design guidance for sections of this type. Two publications based on work at Cornell University, (Ref. 9.1), and the Institute TNO for Building Materials and Building Structures in Delft, Netherlands (Ref. 9.2), have produced useful test results from which design formulae have been developed. The design rules in the AISI Specification were developed from the Cornell tests. However, the more recent TNO tests add additional information to the original Cornell work, and so the results and design formulae derived in Refs. 9.1 and 9.2 are covered in this chapter even though the AISI Specification is based solely on Ref. 9.1.
