THE EFFECT OF SHEAR AND NORMAL FORCES ON THE FULLY PLASTIC MOMENT OF I-BEAMS,

Abstract : Lower bound solutions for thtic collapse load of an end-loaded cantilever beam of I section are developed and compared with ex isting upper bound solutions. The end shear load can only exceed the load corresponding to the yield stress in shear acting over the full web area for extremely short beams, and it is suggested that this load represents the practical limit of shear force. For longer beams a lower bound solution is given which agrees closely with an existing upper bound solution, and an em pirical interaction relation between shear load and moment at the clamped end is put forward as a summary of the results. (Author)