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The Structural Engineer

Professor A. Bolton (F) (formerly, Heriot-Watt University) I read this paper with great interest because it presents much data of value to practising engineers. The experimental work was carried out after careful thought and preparation, and the results are offered in a form which can be applied directly to other structures. The extreme difficulty of carrying out full-size tests of this kind on practical structures is not always appreciated but such a paper is then read and used by many more than would read the formal solution of a theoretical problem. The work of Professor Bryan and his colleagues at Salford University, Dr. Morris at Manchester, and Dr. Cunningham, which are listed in the references of Dr. Robertson’s paper, are of this same useful kind.

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The Structural Engineer

The Chairman I am delighted to see so many people here tonight. We often have a full meeting room but we have excelled tonight and there is obviously a very real interest in this subject. I was thinking of asking how many were here out of purely academic interest and how many were trying to pick up some tips for the future, but in the event I shall not embarrass any of you by asking that question. It is an important subject and I am looking forward to a lively and wide-ranging discussion about all those things that are important to you as individuals.

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The Structural Engineer

This paper considers the inplane stability of regular and irregular multibay portal frames. The methodology is directed towards estimates of the elastic critical load which give an indication of the significance of inplane instability whether the frame is designed on an elastic or plastic basis. Simple expressions for the practical estimation of the elastic critical load are given for a range of situations, including both the external and internal bays of multibay frames, portal frames supported on valley beams or props, and tied portals. In each case, the proposed expression is justified by comparison with exact analysis for a range of practical cases. Professor J.M. Davies

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The Structural Engineer

The education of engineers Raymond Corrigan ’S suggestions for the education of engineers, contributed to this column in April, have called forth comments from two Fellows of the Institution who have been supremely involved in this area. Professor A.R. Cusens writes as follows: I was unable to attend Mr Corrigan’s Faculty of Building lecture ‘Roses in November - training for building’ given at the University of Leeds in February. Had I been present I would undoubtedly have been tempted to comment; it is more difficult to discuss the brief excerpt quoted in your column of 16 April, but clearly the lecturer is extending the range of his talk to include structural engineers and you are expecting some response. Verulam

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