Fire and the Protection of Structures. Discussion on the paper by L. A. Ashton OBE BSc(Eng) MlFireE

Mr. Peter Stott (GLC) : ' I should like to congratulate Dr. Kerensky on his paper. It is a very pleasant change to be able to read a paper which says what actually happened. So often a paper describes what the finished article looks like, but not what vital engineering decisions had to be taken. The great merit of this paper is that it does tell you what you want to know. '

This paper describes the design and construction of the Thelwall Bridge, M6 Motorway, Lancashire, which was officially opened in 1963. C. Probert and A. McKie

This paper outlines the ways in which bridge designers seck to ensure that their bridges are at once adequately safe and economical, and tries to contribute to this process. It also endeavours to determine the degree of safety actually achieved by analysing the numbers of bridges that have collapsed since the industrial revolution. Sir Alfred Pugsley