- Yield strength of steel : fy=60000 psi (all structure) fy=40000 psi (use lintel, stirrups, boundary wall etc) *Lapping length : 1.Beam,Grade beam, slab (35D) 2.Column (30 D) *Casting : 1.Footing and column (1:1.5:3) 2.Beam and slab (1:2:4) *Crushing strength of concrete: 1.f'c=3000 psi ( for column & foundation) Others works 2500 psi is enough.
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