Kredaras A K, Sapalas A. Research and Practice of Concrete-Filled Steel Tubes in Lithuania. Journal of Constructional Steel Research, 1999,49:187 ~ 212
[5]
Morgan M R, Lee M M K. Parametric Equations for Distributions of Stress Concentration Factors in Tubular K-Joints Under Out-of-Plan Moment Loading. International Journal Fatigue, 1998,20 ( 6 ): 449 ~ 461