Web crippling of cold-formed steel beams at end supports

This investigation focused on the effects of overhang length on the web crippling capacity of cold-formed steel members. The current design recommendations in North America do not provide for an increase in web crippling capacity for end-one-flange loading when an overhang is present beyond the end support. The test specimens used for the investigation were single web C-sections and Z-sections. The current design requirements for end-one-flange web crippling capacity were found to be conservative for overhang lengths ranging from 0.5 h to 1.5 h, where h is the web depth. However, the design practice that permits the application of the interior-one-flange loading condition for overhangs equal to or greater was discovered to be unconservative. Test results allowed for the formulation of a modification factor to the end-one-flange loading condition based.