Following the publication in 1964 of the Joint Committee report Fully-rigid Multi-storey Welded Steel Frames, an experimental investigation was instituted aimed at establishing the accuracy of the simplified design method proposed therein. This investigation took the form of tests on a full-scale 3-storey 2 bay X 1 bay rigid-jointed frame fabricated in BS 4360, Grade 43 steel, and designed in accordance with the recommendations of the report. The results of these tests were presented in a paper in The Structural Engineer.
R.F. Smith and E.H. Roberts