Author: Terrington, J S
First published: N/A
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Terrington, J S
DR. W. W. L. CHAN, (Associate-Member) referred to the section given in the paper on Hinge Rotation. Whilst the Author first recognised that Hinge Rotation occurred over a finite length, and was governed by the depth of neutral axis, he then quoted permissible rotations of 0.001 radians and 0.01 radians for unbound and bound sections respectively as being Professor A.I.I,. Haker’s suggested values and used these figures in the worked example of the built-in beam.
THIS paper introduces two new methods of structural analysis for the single-storey, multi-bay frame. The first, the generalized slope-deflection method, is developed from a consideration of the flexural properties of the curved (or bent) structural member. It is, however, restricted in its application here to those “linear” structures in which the connecting eaves joints are only able to rotate and displace horizontally.
The second, the generalized moment distribution method, is developed from this first method, and is restricted to the same type of structure. It is based upon the physical conception of allowing the various eaves joints, in turn, both to rotate and displace
horizontally together, so that the out-of-balance moments and thrusts are successively eliminated at these joints.
THE European Committee for Concrete first met at Luxembourg on November 23rd, 1953. Subsequent meetings have been held at Fontainebleau, in May 1954, in Madrid, June 1956, and in Rome, April 1957. The initiative and enthusiasm of French engineers brought it into being, particularly M. Balency-Béarn, the first president, M. Esquillan and M. Brice, all leading members of the ‘Chambre Syndicale des Constructeurs en Ciment Armé de France et de l'Union Française.’ Membership of the Committee is limited to three delegates from each country, who should be authorities in the fields of research and design practice. Simplicity of organisation and intimacy of discussion has thereby been achieved. A larger assembly could not hope to debate effectively the complexities of research and design theory, and make progress in drafting agreed conclusions and recommendations. The enthusiasm of the French, as the instigators of the venture, has persisted, and at each meeting no time has been wasted
and a concentrated programme of work has been carried through with zest and endurance, sub-committees often working until late at night, in order to reach understanding and agreement.
Professor A.L.L. Baker