二軸対称曲げモーメントが作用するノンダイアフラム円形鋼管柱‐段違いH形梁接合部の仕口曲げ耐力

抄録

This paper deals with the joint strength in the non-diaphragm connection of a CHS column to H-section beams to which different depth beams were joined in two orthogonal directions. The yield, plastic, and ultimate moment capacities of the cylindrical wall of the non-diaphragm connection subjected to biaxial-symmetrical bending moment were examined by using the finite element method. Additionally, prediction formulae to estimate the joint strength with a level difference at the lower flange were proposed by applying the formulae of joint with no level difference previously developed by the author, using linear interpolation. By comparing the prediction lines with the numerical solutions, it was confirmed that the prediction formulae demonstrated good accuracy.