Contents page

The Structural Engineer
THE PRESIDENT introduced the Authors who then presented their paper and exhibited a model of part of the roof frame of the building.
The Structural Engineer
THIS paper describes the design and construction of a new fire-resisting floor to the auditorium, and improvements to the orchestra pit and entrance staircase made during the summer of 1955. C. H. Hockley
The Structural Engineer
THE problem of the simply-supported rectangular beam having a single circular hole is investigated for the case of bending with shear. An approximate mathematical analysis is presented along with the results of a photoelastic investigation. Results are also given for a rolled steel joist with a circular hole in its web from measurements with acoustic and electrical resistance strain gauges. J. E. Gibson and W. M. Jenkins