Finite Element Analysis of Reinforced Hollow High-Strength Concrete Filled Square Steel Tubular Middle-long Column under Eccentric Load

Abstract Traditional hollow concrete filled steel tube components are mainly used in the transformer power structure. In order to improve mechanical properties and application scope of components, a new type reinforcement high-strength combination structure is proposed. Given that construction system frequently an eccentric stress condition throughout structural system, finite element analysis program ABAQUS produces 20 compression middle-long column models. The overall force process composite members investigated, parametric done on yield strength, eccentricity, content, various lengths slenderness ratios components. According results analysis, reinforced high strength square divided into four stages: elastic section, elastic–plastic plastic strengthening section descending stage. configuration bars can significantly ductility This be as wind-resistant industrial plants future, which has certain prospects economic benefits.