The Structural Engineer > Archive > Volume 31 (1953) > Issues > Issue 11 > A Derivation of Maximum Stanchion Moments in Multi-Storey Frames by Means of Nomograms*
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A Derivation of Maximum Stanchion Moments in Multi-Storey Frames by Means of Nomograms*

A type of Nomogram originally devised by Dr. M. R. Horne for the solution of beam moments in rigid frames has been extended to the determination of stanchion moments and developed to include the effects of instability, and it has been found that this can be achieved without departing from the construction of intersecting straight lines. The solution for the behaviour of a stanchion in the elastic range and in the absence of sway can be seen by merely locating two points on the Nomogram and drawing a straight line, which straight line is the diagram of the restraipt moments. The nomograms can be used to demonstrate with great rapidity the phenomenon of "unwrapping" leading to buckling. It is shown how to construct nomograms for continuous stanchions, and it is hoped that these nomograms will also be of use to those engaged in the more general elasto-plastic research into stanchion behaviour. R.H. Wood