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The Structural Engineer, Volume 64, Issue 3, 1986
This series started in January 1983 with ‘Aims of structural design’, and since then more than 25 additional ‘Viewpoints’ have been published on a varied range of topics:
The collapse of a factoy roof in the UK under snow loading is described. The mode of failure was repeated in a number of similar structures. As discussed in a recent BRE Digest, these failures may have been due to the increased sensitivity of certain types of structure to snow driffing. In this paper, it is shown that the failure occurred from the unintended consequences of progress in our understanding of the structural behaviour of cold formed steel purlins. Several lessons are drawn regarding the design of these elements, the role of Code recommendations, the production of ssfe load tables for design, and the need for engineers to be aware that human action can result in unintended consequences and that decisions should be taken so as to minimise their effects. N.F. Pidgeon, D.I. Blockley and B.A. Turner
By necessity, the character of this paper has to be rather general. Its subject is very broad, and some emphasis should be given to the physical and analytical modelling of the behaviour under seismic actions. However, because of this generality, a more complete picture of all aspects of aseismic design is needed and hence the briefness of the presentation of each aspect and the inevitable gaps in the presentation. Consequently, originality is claimed only for some of the models presented during the paper. Professor Dr. T.P. Tassios