First published: N/A
Standard: £9 + VAT
An IStructE account gives you access to a world of knowledge. Create a profile to receive details of our unique range of resources, events and training.
Added to basket
THE Chairman, introducing the lecturer, said as Constructional Engineer to the Northern Gas Board, whose territory extended from the North Riding of Yorkshire up to the Border and right across from the North Sea to the Irish Sea, Mr. Garrett had plenty
of gas works on his hands, for the constructional work in which he was responsible.
THE importance of being ablc to calculate the critical load of a strut has long been recognized, and a considerable part of any modern design code is devoted to this end. However, progressive structural engineers are dissatisficd with a design process in which it is necessary to consider the stability of a stanchion as though it were isolated from the frame. When this is done no exact allowance can be made for the stiffening effect of adjacent members or of the redistribution of moments which takes place as the axialoads in mcmbers are incrcased. It seems likely that a rational design method can be developed using the critical load of the complete frame as one
parameter. This paper demonstrates a method of obtaining the critical load of building frames in which sway can take place and includes approximations which are believed to be accurate and quick enough for use in such a design.
Mr I.P. Gillson (M) (Central Electricity Generating Board): I draw the attention of specifying engineers to the need to
-study carefully the September 1983 draft ‘Guidance notes’ when dealing with particularly vulnerable structures
-consider the relevance of tests on mortar prisms and cubes to the risk of ASR damage
-consider the scale effects of concrete samples on the risk of ASR damage
-examine evidence from concrete that has been damaged by ASR