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The Structural Engineer, Volume 49, Issue 8, 1971
Professor A. Bolton (M) was educated at Queen Elizabeth's Grammar School, Blackburn, and the University of Manchester. His first degree was in building but his subsequent degrees were concerned with structural engineering.
Mr. A. Spruce (M): The main construction problems facing the contractor on this project were those associated with the ground conditions and with the interesting features of the construction.
This paper presents a basis for determining displacements and stresses arising from the torsion of structural rectangular hollow sections. Particular attention is given to stress concentrations at the re-entrant corners. A relationship is determined between freely formed corner radii and section thickness. Analytical solutions are compared with experimental results on steel sections and prediction from thin walled torsion theory. J. Marshall