A finite element modelis presented for non-linear analysis of reinforced concrete framed structures. The model considers non-linear stress/strain characteristics and cracking of concrete and yielding of concrete and steel. The reinforced concrete element uses an improved quadrilateral Q16 with reinforcement in any orientation. The subregioning technique is used to improve the accuracy for coarser discretisation which results in computational economy. C.S. Krishnamoorthy and A. Panneerselvam
Professor A. L. L. Baker (F): Mr. President, will attempt to be concise and comprehensible but not comprehensive, and begin by complimenting Dr. Matthews on his introduction and grasp of the task before us of creating a common international concrete Code. The national delegates who first met at Luxembourg in 1953 were unofficial enthusiasts. Colonel Galbraith, who was President at that time, had the foresight to see the significance of the CEB which was then formed and he asked me to attend.
The theory of the finite difference method of stability analysis for simple end-loaded variable section members is explained. The theory is developed to give an easy-to-use method for the buckling analysis of steel compression members with any variation of flexural stiffness, pattern of axialloading and support conditions. Data requirements for an analysis are listed and the application of the method to three different structural steelwork problems is described. J. Gaughan
We continue to receive useful and interesting letters on trussed rafters. From Mr. G. E. Dickinson : The matters raised by Mr. H. Gorzelany (February '77) and Mr. R. A. Gill (May '77) on the subject of trussed rafters prompts me to add further comments. Verulam