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The Structural Engineer

The paper presents non - dimensional design charts which allow the estimation of the critical loads of sets of interbraced compression members and also the strength requirements of the braces. The charts summarise the results of computations made on structures comprising up to six compression members in parallel linked by up to twelve lines of braces. Both uniform and'parabolic' axial force distributions within the column length are considered. The analytical procedure used is a normal stiffness matrix formulation using stability functions to incorporate the weakening effect of axial compression. I.C. Medland

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The Structural Engineer

The President: You mention in the paper that there is quite a range of strengths I think between 100-800 M N/,m2. Would you like to say something about the reasons? Is it the proportion of the glass fibres or is the size of the fibres?

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The Structural Engineer

The President: Once in every four years we have the Olympic Games and whatever arguments and difficulties the Olympic movement may go through, it presents to the engineering world an opportunity to undertake structures of a magnitude and complexity which does not occur on any other occasion. There are a handful of engineers who are lucky enough and able enough to be chosen as consulting engineers for these projects.

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The Structural Engineer

An additional stand was required at the Crystal Palace National Sports Centre to provide covered seating for a further 5000 spectators. The structure comprises an in situ RC frame with a steel canopy. For aesthetic reasons, the design brief required the canopy to resemble that of the existing stand. A.J.J. Bartak, D.C. Kaye and T.J. George

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Author – Bartak, A J J;Kaye, D C;George, T J

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The Structural Engineer

A correspondent in commenting on legal liability in the April 1977 column referred to a case then being considered in the House of Lords. It was the case of Anns and others v Merton London Borough Council. Judgement has now been given which seems likely to re-open the flood gates of litigation to which he referred. Briefly the decision is that a Council has a duty to inspect a site (the issue was about damage caused by settlement due to poor foundations); if the Council fails to do so, or if the inspection is negligent, the Council has a liability if something goes wrong. Further, the plaintiff, has six years from the time the damage appeared in which to make his case and the plaintiff can be the present owner of the damaged property and not the original purchaser. Since this is a ruling by the highest court of the land it is a precedent which only legislation by Parliament can change. Verulam

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