Reinforcement detailing of Columns from ETABS output

ans: All answer are written in PDF form, column detailing along the height will remain the same, i.e., lo distance & lapping zone length & spacing while the section keep on changing which are already attached below.

For Grid 3b, we have to follow the same section through the height of the building due to uniformity in the R?F as shown below in the screenshots:

uniformity of RF along the 3B make me able to provide a homogeneous section.

=======================================================================