How does ideCAD control one-way slab design limits according to ACI 318-19?
The minimum slab thickness is controlled and reported automatically according to Table 18.104.22.168.
For nonprestressed slabs not satisfying 7.3.1, immediate and time-dependent deflection is calculated according to 24.2 and is not exceed the limits in 24.2.
Slab thickness is detemined by user.
h = overall thickness, height, or depth of member, in.
l = span length of beam or one-way slab; clear projection of cantilever, in.
fy = specified yield strength for nonprestressed reinforcement, psi
Minimum Slab thickness
The minimum slab thickness is controlled automatically according to Table 22.214.171.124. If calculated deflection limits of 7.3.2 are satisfied, the minimum slab thickness condition is not controlled.
Minimum slab thickness, h
One end continuous
Both ends continuous
For fy other than 60,000 psi, the expressions in Table 126.96.36.199 are multiplied by (0.4 + fy/100,000).
Calculated deflection limits
For nonprestressed slabs not satisfying 7.3.1, immediate and time-dependent deflection is calculated according to 24.2 and does not exceed the limits in 24.2.2.
Reinforcement strain limit in nonprestressed slabs
It’s automatically designed according to Strength Reduction Factors per ACI 318-19 with ideCAD.