I have been working on a project to investigate how ETABS version 21.0.0 captures frame and shell elements in vertical structures (columns) differently.
Details on the testing are that all of the column height is 4.2 m. all subject to the same building, all same material(concrete fc'50MPa), and...
Why is my designed rebar percentage suddenly becoming overstressed in story 9, the 2B and 3B columns have a very close amount of bending moment compared to the base level column of 2B and 3B.
I have obtained several results resembling this, when there are a huge amount of bending moments at...