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Old 19th November 2013, 10:20 PM   #1
Tony Bryer
Join Date: Apr 2008
Location: Melbourne, Australia
Posts: 829
Default Substitution of undersized steel sections

From the latest structural safety newsletter:

Having read your recent warning on the failure of certified steel products (Newsletter No 29), despite having certification, a reporter feels it necessary to report a similar but more basic problem. Given the continuance of the recession he and colleagues are seeing an increased use of smaller than specified steel sections in domestic construction. For example a 203 x 203 x 60 UC might be specified on a drawing by an engineer and a 203 x 203 x 46 UC appears on inspection of the installation. Occasionally the correct size is even shown on the delivery ticket (Alert Anomalous documentation for proprietary products). On other occasions the builder has made a decision that the steel is over designed and reduces it without consultation. This is now occurring on applications in one city at the rate of once or twice a week. The reporter has checked with colleagues in other cities and a similar picture is emerging. This is not a new problem but it is on the increase. The reporter and his colleagues are giving builders a list of the dimensions of common section sizes and advising them to check their steel before installation. This has the effect of both helping and warning at the same time.

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Tony Bryer, Greentram Software Pty Ltd
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