As per IS 800: 2007, for a web (having d – depth of web, tw – thickness of web, ε-yield stress ratio) without stiffeners, the resistance to shear buckling shall be verified using the condition:
1
d/tw > 67 ϵ
2
d/tw > 37 ϵ
3
d/tw < 67 ϵ
4
d/tw > 45 ϵ
5
d/tw < 90 ϵ