Shear Resistance of Panel Zone of Frame Joint Connecting CHS Column and H Steel Beams

The stress distribution in the panel zone of circular hollow section (CHS) column and H steel beam joint in moment resistant steel frame is analyzed according to the assumption of thin walled structures,and the results are checked by the FE analysis.The yield capacity and ultimate of the joint against shear force are deduced according to a typical joint model in plane frame with the identical beam height on two sides.Then the other cases are discussed,including the unequal beam height on two sides of joint in plane frame,identical beam height connecting to the joint in three dimensional frame with perpendicular plane frames or two or more lean frames.It is shown that by simple change,the formulas of shear capacity of circular joint panel zone can be used in H steel column,box section column and cross section column.