8. Vertical Extent of the Special Boundary Element Transverse Reinforcement
Special boundary elements are permitted to be discontinued where the calculated fcu < 0.15 fc'. | |
The reference determined that special boundary elements can be terminated above the twenty-third-floor level (the wall thickness is 12.0 in. and the compressive strength of the concrete is equal to 5,000 psi at this elevation, which makes the stress limit equal to 0.15 fc' = 750 psi. | |
ACI 318-19 (18.10.6.3) | |