Asd

LRFD and LSD

Beams with unreinforced webs

Beams with transverse web stiffeners

VfbMnxcJ Vfv VJ - 1

VfbMnxo/ Vfv Vj

Note: M is the bending moment, V is the unfactored shear force, Ob and Ov are the factors of safety for bending and shearing, respectively, f b is the resistance factor for bending, f v is the resistance factor for shear, Mn is the nominal flexural strength when bending alone exists, Mnxo is the nominal flexural strength about the centroidal x-axis determined in accordance with the specification excluding the consideration of lateral-torsional buckling, M is the required flexural strength (Mu for LRFD and Mf for LSD), Vn is the nominal shear strength when shear alone exists, and V is the required shear strength (Vu for LRFD and Vf for LSD).

\ \ FIGURE 6.26 Web crippling of cold-formed steel beams.

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