2024-10-18 00:00:00 Design circular reinforced concrete columns subject to flexo-compression according to the Complementary Technical Standard for the Review of the Structural Safety of Buildings (NTC - RSEE 2021 / 2017) of Mexico City 2017 or with the Complementary Technical Standards of the Regulation of Constructions for the Federal District (NTC - DF 2004), valid for all of Mexico. ꙮ FREE: Technical Assistance. ꙮ Powerful tool for concrete column design.