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The next British Code of Practice for composite structures in buildings, now in preparation, will not include composite columns. A simplified design method for such columns, originally developed for the draft for public comment of this Code, has been revised to take account of subsequent work and the publication of BS 5400: Part 5. This method and other recommendations on composite columns for buildings are now presented in Code form, with explanations, comparisons with other methods, and a worked example.
R.P. Johnson and D.G.E. Smith
The 80 recommendations of the Report of the Committee of Inquiry into the Engineering
profession (Cmd. 7794, available from any HMSO bookshop, price £5) are reproduced below
(see also page 74). The Council of the Institution will be commenting to the Department of Industry and the Department of the Environment about the proposals for reorganising the profession. Comments and opinions from members will be welcomed and will be taken into account when preparing the response to Government. The Institution statement will be published in The Structural Engineer as soon as possible.
Mr. Peter Mason (Past President): The subject of this paper is, of course, fascinating-experiences that we have all had, but that we do not normally attempt to analyse or put into graph form. In Table 3 the author shows relative accelerations for different sets of circumstances. Particularly interesting to me were those for earthquakes-something like 45 m/s to the power 2-and those for a fairground machine, which were also up to 45 m/s to the power 2. Yet the human reaction to these experiences was completely different-the reaction to one being horror and, to the other, pleasure. I wonder what is the mechanistic explanation. Is there a factor in the earthquake motion additional to that of the machine? Is there, indeed, some factor of which we are unaware (or possibly do not recognise) that is additional to the normal accelerations and movements that can be measured in three dimensions? Or do these reactions differ so widely because of the psychological pressures of being in a red danger situation as compared with being in a simulated one-even though (or perhaps because of the fact that) the simulated situation often does contain an element of real danger?