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The Structural Engineer, Volume 56, Issue 5, 1978
The paper discusses the possibility of specifying tolerances for post-welding distortions of plates which are both simple to check and directly related to the weakening effect of these distortions on the compressive strength. The discussion is based on a statistical treatment of a large number of full-scale measurements of size and shape of the distortions, as well as numerical analyses of the compressive strength of plates. C.A. Carlsen and J. Czujko
Members will be familiar with the current activities of the Committee of Inquiry in to the Engineering Profession set up in July 1977 by the Secretary of State for Industry. The terms of reference on the Committee appeared in The Structural Engineer August 1977 (page 329) and brief details of its Chairman, Sir Monty Finniston and the 17 other members appointed by the Government were published in the March l978 issue (page 68).
The paper is intended to give designers an understanding and visual appreciation of the way temperature distributions within bridge decks form and change throughout the day. Any temperature distribution is considered as a superposition of a steady state average heat flow between top and bottom surfaces and an hourly changing variation near the surfaces. Both components are analysed by classic theory of conductivity and can often be sketched by eye. The influences of surfacing and lightweight aggregate concrete are indicated. E.C. Hambly