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The paper contains the results of an investigation into the elastic critical loads of multi-bay pitched roof portal frames using an electronic digital computer. The variables considered are:
(a) The number of bays.
(b) The ratio Span / Stanchion height
(c) The angle of inclination of the rafters.
(d) The ratio Inertia of Stanchion / Inertia of Rafter
(e) The end fixity of the internal stanchions.
D. M. Brotton
Though the ‘concrete industry’ has no distinct entity except in certain specialized aspects, the term is a useful one in describing those parts of the work of various professions and industries that involve the use of Portland cement. It is also appropriate for the purpose of this paper in that the research organization of the Cement and Concrete Association, though financed by the cement manufacturing industry,
is in fact Concerned almost entirely with providing help to the cement user.
A. R. Collins
The United Steel Company’s Pegasus Computer was installed in Sheffield in February, 1958, and one of the first major tasks assigned to the programming staff was in the field of structural steel design. This particular application of the computer had been suggested by the United Steel Structural Company with a view to employing the machine on their problems.