Hello,
In "Design for Flexure" section, STAAD foundation calculates the minimum reinforcement based on this equation: As min = ρ. b . d eff
b : foundation width or w
d eff : effective depth
But ACI says As min = ρ. b . h
[ ACI 7.12.2.1 — Area of shrinkage and temperature reinforcement shall provide at least the following ratiosof reinforcement area to gross concrete area ........]
I am asking for your ideas on this. At the moment I think it is wrong and must be corrected in STAAD.foundation.
Thank you
i think you should check also, ACI DESIGN HANDBOOK. IN FOOTNGS EXAMPLE 2 - Design a square spread footing. (Design of
Structural Reinforced Concrete Elements
in Accordance with the
Strength Design Method of AC1 318-95)
Thank you Rekcah, I checked it & again : As,min= 0.0018 bh
"h" instead of effective depth.
Hajir