I get a (ab) warning in the column details on the last floor. I always get the same error on the last floor, whether I increase or decrease the floors. The error does not appear in the report outputs. Anyone have experience with this issue? latest version.
See TDY 2007 Item 3.4.3.1 and Figure 3.7. The remaining length (a) of the beam reinforcement inside the column must be at least 0.4 * lb (ts500 clamping length). The part (b) that turns into a+beam should be at least lb. In addition, (ab) control is left to the user's preference in the beam parameters.