Abstract: This paper presents a three-dimensional (3D) cyclic nonlinear finite-element model for concrete-filled steel tube (CFT) beam-columns and composite frame structures. This CFT beam finite element is incorporated into a matrix ...

Abstract: This paper presents the development of a polynomial equation to represent the three-dimensional (3D) cross-section strength of square or rectangular concrete-filled steel tube (CFT) beam-columns. The equation provides an ...

Abstract: Part I of this two-part paper presents a three-dimensional (3D) cyclic nonlinear finite-element macromodel for concrete-filled steel tube (CFT) beam-columns and composite frame structures. The material formulation consists ...

Abstract: This paper presents the findings from a computational investigation performed on the Borax corporate headquarters building, a four-story steel frame structure in which 75% of the steel moment-resisting connections suffered ...