13/10/2026
In Indian Standard (IS) codes and masonry construction practice - Governing Code / Guidelines: Covered under IS 4326 (Earthquake Resistant Design and Construction of Buildings — Code of Practice) and the National Building Code (NBC) of India guidelines for Confined Masonry (CM) these columns are called Tie-Columns (also referred to as Confining Columns in Confined Masonry or Vertical RC Confining Elements / Jamb Posts)