Although Chapter J of the 2010 AISC Specification has
formulas for predicting strength of unstiffened webs and
stiffened webs with full-depth stiffeners under local compressive
loads, it does not have any formula to predict crippling
strength of webs with partial-depth stiffeners under
local compressive loads. Research on the behavior and
design rules of intermediate transverse stiffeners attached
on web panels was summarized by Lee et al. (2002, 2003).
Research on the requirements of transverse stiffeners in
straight and horizontally curved steel I-girders was summarized
by Kim et al. (2007). Research on unstiffened webs
under compressive edge loads was summarized by Elgaaly
(1983). Research on the same topic post-1983 was summarized
by Salkar (1992) at the University of Maine.