ACI-318 2014

The ACI 318-08 design code implementation in RAM Concrete Column utilizes the majority of the design logic contained in the ACI 318-05 code, as is the case with the design code itself. The reorganization of ACI 318-14 changed all references used in ACI 318-11 and these were updated within the program.

This section documents changes made to the implementation from ACI-318-05 to ACI 318-08; specifically, additional checks required by the newer design code, modifications to existing sections, and design checks that are no longer necessary in the newer code.

Confinement in Column Ends

RAM Concrete Column satisfies concrete confinement checks implemented in ACI 318-14. Thus, the maximum spacing of longitudinal bars laterally supported by corner of hoop legs around the perimeter of the column should be:

when $P_{u} > 0.3 A_{g} {f^{'}}_{c}$ or $f_{c}^{'} > 10, 000 psi$
$h_{x} < 8 "$ ACI 318-14 ( 18.7.5.2.f)
otherwise,
$h_{x} \leq 14 "$ ACI 318-14 (18.7.5.2.e)