Design procedure for tee sections (Angles and tees: AISC 360)
The nominal flexural strength Mn is the lowest value obtained according to the limit states of yielding (plastic moment), lateral-torsional buckling and leg local buckling.
Mnx = Min {Mnx,Yield, Mnx,LTB, Mnx,LLB}
In the case of biaxial bending, or bending and axial force the combined stress ratio must be checked using the provisions of AISC, section H2.
The applied loads are
- Pr Axial
- Mrx Bending in x axis
- Mry Bending in y axis
Check:1
Abs (fra / Fca + frbzx / Fcbx + frby / Fcby) ≤ 1.0
Tees - Critical Points A, B & C