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The Structural Engineer, Volume 74, Issue 6, 1996
Where wind blows... Members have responded to the letter from Rollo Reed (Verulam, Vol.74, No. 2, 16 January 1996). Bill Hyde writes from Worcester: No doubt in a hurricane there are downdraughts, but I suggest that, if all of the purlin damage in Rollo Reed's photographs had been caused by downward forces, the roof coverings would still be in place. May it be that failure occurred upwards, and that the failed purlins are now simply sagging under their own weight? Verulam
The design of liquid-retaining structures in the UK has been governed by a series of Codes of Practice dating back to 1938. Outside the UK, practice varies. In the USA, Australia, and Hungary, there are specific Codes, whereas in some other countries there are documents which provide a design method, but which do not have the status of a Code of Practice. Now that the design of normal concrete structures is enshrined in Eurocode 2, and an additional section is being written to encompass containment structures, it seems appropriate to examine the variations in practice for the design of these somewhat specialised structures. This technical note is put forward in order that comparisons may be made, and in due course, a consensus for a Eurocode may be reached more easily. R.D. Anchor
A computer analysis is being developed whose objective is to predict the response of steel framed buildings to fire conditions. This is now capable of analysing 3-dimensional structures, including a representation of the restraint to thermal expansion provided by concrete floor slabs. The analysis has been used to model the first of the fire tests conducted on the full-scale eight-storey composite test frame at Cardington, which took place on 19 January 1995. In this test a 9m secondary composite beam was heated to steel temperatures in excess of 800°C. C.G. Bailey, I.W. Burgess and Professor R.J. Plank