This database is collected for evaluating the reliability of CFST columns designed by modern codes of practice (see Thai H-T, Thai S, Ngo T, Uy B, Kang W-H, Hicks SJ. Reliability considerations of modern codes for CFST columns. Journal of Constructional Steel Research 2021;106482). The database contains 3,208 tests including: - 1,305 tests on circular CFST columns under concentric loading - 1,003 tests on rectangular CFST columns under concentric loading - 499 tests on circular CFST columns under eccentric loading - 401 tests on rectangular CFST columns under eccentric loading