Author: Woods, C Roland
First published: N/A
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Woods, C Roland
SIR,--I have been eagerly anticipating Mr. Andrews’s paper on the above subject, and your March issue to hand this morning has enabled me to read it with pleasure.
If in any statically indeterminate structure with r redundants, we introduce, Figure 1,
an additional hinge (a), or make a cut and supply a frictionless guide which allows either (b) purely axial displacements, or (c) purely transverse displacements, then the redundancy will be reduced by one degree.
Perhaps this subject is a little more important than is generally realised; at any rate, it is certainly more extensive then the average engineer or contractor anticipates. The various ramifications of this specialised type of construction are considered in the following notes, and it will be seen from the chart that whereas some
sections are expanded into great detail, others are dealt with in a very brief manner. For instance, whilst the portion headed "Omitting Concrete" is divided into "Floors" and "Walls" (an arbitrary division which is both natural and convenient), the paper deals only with the former. These drastic limitations are necessary in order to keep the paper of reasonable size.