Effect of welding residual stress on the performance of CFST tubular joints

The residual stress and the dimensional distortion due to rapid temperature variation during the welding process are often crucial for the life-cycle behavior of structures, especially for key connection regions in offshore and marine applications. This paper evaluates the detailed welding effects on the strength and stiffness of concrete-filled steel tubular (CFST) Y- and K-joints using advanced finite element modeling (FEM), and the results...