Parametric study on concrete-filled steel tubular T-joints under in-plane bending

Concrete filled steel tubular connections are being increasingly used in various engineering structures. Stress concentration usually exists at the vicinity of the welded joint. In this paper, variation of the maximum Stress Concentration Factor (SCF) with non-dimensional geometric parameters β, τ and γ in concrete-filled steel tubular (CFST) T-joints under in-plane bending has been investigated. Graphs showing variation of the maximum SCF, in CFST T-joints, with non-dimensional geometric parameters have been developed. The graphs showed that parameter β has less influence on maximum SCF compared to τ and γ. The graphs also showed that the effect of parameters τ and γ is considerable compared to β