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Old 19th November 2013, 10:20 PM   #1
Tony Bryer
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Join Date: Apr 2008
Location: Melbourne, Australia
Posts: 785
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.

More at http://www.structural-safety.org/pub...t/?report=3898
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