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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 32
Edited by: B.H.V. Topping
Paper IV.2

Treatment of Non-Uniform Loads in Automated Yield-Line Analysis

D. Johnson

Department of Civil and Structural Engineering, The Nottingham Trent University, Nottingham, UK

Full Bibliographic Reference for this paper
D. Johnson, "Treatment of Non-Uniform Loads in Automated Yield-Line Analysis", in B.H.V. Topping, (Editor), "Developments in Computational Techniques for Civil Engineering", Civil-Comp Press, Edinburgh, UK, pp 83-87, 1995. doi:10.4203/ccp.32.4.2
The automatic yield-line analysis of orthotropic slabs by the technique of sequential linear programming is extended from a uniformly distributed loading capability to include provision for a direct treatment of point and line loading. The theoretical development required for the inclusion of point and line loading is described for both geometrically fixed and variable yield-line system. A series of examples are used to compare the performance of the direct treatment of point and line loading with analyses which represent such loading as equivalent uniformly loaded patches. It is shown that, in general, the direct treatment is more efficient, but that the patch approach is likely to be more representative of actual loading conditions and hence more accurate.

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