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The price of progress Structural codes of practice have always been controversial but today the biggest issue for many practising engineers is not philosophy but cost. In tune with the spirit of the times, BSI has ‘built up its core market’, i.e. locked customers into QA schemes which require them to buy every new code edition or revision which is published, is ‘publishing more codes than ever before’, i.e. dividing up codes into innumerable parts and issuing ‘new editions’ instead of amendments, and, it seems, is intent on charging its captive customers more money for its codes than ever before. A.N. Beal
Wet and dry timber Mr Steer, Chairman of BSI Committee B/525/5 - Structural use of timber writes: There has been increasing use of ‘wet wood’, i.e. timber with a moisture content exceeding 20% for situations where ‘dry wood’ (moisture content less than 20%) is intended (the majority of timber designs carried out to BS 5268 The structural use of timber employ dry exposure stress values). Verulam
This paper describes a programme of work on the testing of hollow plank floor systems under static loads. Particular issues addressed include the need to estimate the transverse load distribution in a floor during a test, and the scope for extrapolation of behaviour from the results of tests carried out at lower loads. The research described focuses on these aspects and leads to specific recommendations for load testing of hollow plank floors. R.M. Moss