| Product(s): | RAM Concrete Beam | ||
| First Affected Version: | |||
| Found in Version: | 14.07.01.00 | ||
| Fixed in Version | 15.04.00.00 | ||
| Environment: | N/A | ||
| Area: | Design | ||
| Subarea: | N/A | ||
| Defect Number: | 241725 |
Problem Description
Gravity concrete beams in structures assigned to SDC D, E, or F may have been designed incorrectly.
Reason
The following checks are required in ACI 318-11 (and previous ACI codes) but were not used in RAM Concrete Beam design when the gravity axial load did not exceed Ag*f'c/10:
21.13.4.2: Stirrups are required to be spaced at not more than d/2 throughout the length of the member. The program may have detailed no stirrups in some locations.
21.5.2.1: At least two continuous bars are required at the top and bottom of the beam. The program may have detailed the beams with discontinuous top and bottom bars.
21.5.4: The design shear force, Ve, shall be determined using Mpr and a gravity load along the span. The program was using the shear force from the analysis and generated load combinations only.
Solution
Problem corrected in version 15.04.00.00.
