banded shaft
Webster's Dictionary (GCIDE)
1.To bind or tie with a band. [1913 Webster]
2.To mark with a band. [1913 Webster]
3.To unite in a troop, company, or confederacy. "Banded against his throne." --Milton. [1913 Webster]
Banded architrave, Banded pier, Banded shaft, etc. (Arch.), an architrave, pier, shaft, etc., of which the regular profile is interrupted by blocks or projections crossing it at right angles. [1913 Webster]