Due to complexities from the interaction between steel tube and concrete filling of concrete-filled tubular (CFST) columns, their strengths are very complicated, which is a highly nonlinear relation with material geometry. Categorical gradient Boosting (CatBoost), advanced boosting machine, presented solve problems. A total 3103 tests, divided in four datasets, trained tested learners determine...

As a result of the excellent performance under different loading conditions, concrete-filled steel tubular (CFST) stub columns are extensively used recently. The current study employs 3D finite element analysis to assess response when subjected axial compression. effect some parameters concrete and confining tube where numerically investigated. was considered as an elastic perfectly plastic mat...