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Verulam

Shortcuts in design It may seem to our readers, as it did to us, that we receive a large number of letters giving shortcuts to the design of reinforced concrete in bending. It appears, however, that we published only one letter on this subject last year, from Mr P. H. Gregory, which appeared in October in outline only, since it set out two programs for a ‘home’ computer. We have now received the following offering from Mr R. N. Morgan of Edinburgh: I have identified an expression that can be used for the direct calculation of A, that is applicable to the rectangular concrete stress block of CP 110 and also to the ‘Beeby’ stress block of BS 8110 as well as the so-called ‘exact’ rectangular/parabolic stress blocks applicable to both Codes. The derivation of the expression is enclosed for your information. Verulam