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Diaphragm Reinforcement Limits per ACI 318-19 with ideCAD

How does ideCAD control Diaphragm reinforcement limits according to ACI 318-19?


  • Minimum area of flexural reinforcement, As,min is controlled and reported automatically.

  • The ratio of deformed shrinkage and temperature reinforcement area to gross concrete area are greater than or equal to 0.0018. It’s controlled automatically.


Shrinkage and Temperature

Shrinkage and temperature reinforcement is determined according to 24.4.

  • The ratio of deformed shrinkage and temperature reinforcement area to gross concrete area is greater than or equal to 0.0018.

  • The spacing of deformed shrinkage and temperature reinforcement does not exceed the lesser of 5h and 18 in.

One-way and Two-way Slab

Diaphragms which are part of the floor or roof, are designed according to one-way and two-way slab reinforcement limits automatically.

One-way slabs are provided the rules explained in One-Way Slab Reinforcement Limits per ACI 318-19 with ideCAD. Two-way slabs are provided the rules explained in Two-Way Slab Reinforcement Limits per ACI 318-19 with ideCAD.


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