Correspondence on British Standards in Theory and Practice by D.W. Brown, Professor F. K. Kong, Dr.
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The Institution of Structural Engineers The Institution of Structural Engineers
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Correspondence on British Standards in Theory and Practice by D.W. Brown, Professor F. K. Kong, Dr.

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The Structural Engineer
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The Structural Engineer, Volume 68, Issue 4, 1990

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The Structural Engineer, Volume 68, Issue 4, 1990

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Mr A. C. G. Hayward (F) (Cass Hayward & Partners)
The authors argue the pros and cons of permissible stress or limit state Codes and note
that designs compare closely. This, of course, was a deliberate policy when the limit state Codes were written, the values of partial factor being fixed so that the overall safety of common structures under the then prevalent loading remained the same. Thus, the changed philosophy of the new Codes would at least start from a common base of experience. When the loading is changed (e.g. resulting from the recent increase in highway bridge loading discussed by the authors), differences in designs under the
Codes may become evident.

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