Resistance of C-profile cold-formed compression members: Test and standard

In this paper experimental and standard-based analyses on C-profiled cold-formed compression members under supporting conditions and arrangements not fully covered by standard calculation methods are presented. The specimens used in the two cases are made of a single asymmetrical C-section. The third type of specimen consists of two C-sections sticking into each other and connected at their flanges at certain distances using self-drilling screws. The specimens are subject to centric or eccentric compression. The test arrangements, the observed behaviour modes and the results of the tests are presented for all types of specimens. The test results are compared to standard-based design resistances. A method for the design of the double C-profile arrangement is proposed.