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RE: Complexity of Code

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Dennis,

As a concrete designer/software developer I agree entirely with you Dennis.

Many code formulae are simplifications of the more complex formula which actually apply, to make them easier for designers to use in hand calculations. Unfortunately, the simplifications often hide the meaning and logic of the formula and make it difficult for the designer to understand where a formula came from or how to apply it to cases outside the norm. Limiting boundary conditions are quite often used in the simplification of the formula which severely limit the applicability of the formula but these are often not defined in the code. So the designer does not even know the limitations to the formula he is using and he is not given the more complex formula to apply outside these boundaries anyway.

The last thing a computer program needs is simplified formulae which are limited in their applicability as the program then has to be constrained in terms of the the flexibility available to the user. The whole idea of using computer software to carry out design calculations is that computers can solve the complex formulae that we do not normally want to attempt by hand and can therefore give us more accurate answers for a wider range of design situations than can be provided by the simplified code formulae.



Regards  Gil Brock
Prestressed Concrete Design Consultants Pty. Ltd.
5 Cameron Street Beenleigh Qld 4207 Australia
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