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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 24
Edited by: B.H.V. Topping and M. Papadrakakis
Paper IV.2

Adaptive Nonlinear Analysis of Reinforced Concrete Frames

B.A. Izzuddin

Civil Engineering Department, Imperial College, London, United Kingdom,

Full Bibliographic Reference for this paper
B.A. Izzuddin, "Adaptive Nonlinear Analysis of Reinforced Concrete Frames", in B.H.V. Topping, M. Papadrakakis, (Editors), "Advances in Non-Linear Finite Element Methods", Civil-Comp Press, Edinburgh, UK, pp 119-127, 1994. doi:10.4203/ccp.24.4.2
This paper discusses the application of adaptive methods to the elasto-plastic analysis of reinforced concrete frames. The main components of adaptive analysis are first described; namely, an elastic formulation capable of accurately representing a whole member with one element, an accurate elasto-plastic formulation, and an automatic mesh refinement procedure. The nonlinear analysis program ADAPTIC is then used to study the response of a multi-storey reinforced concrete frame, demonstrating the importance of accounting for concrete cracking effects in the evaluation of design forces and moments, and illustrating the significant modelling and computational advantages achieved through the use of adaptive elasto-plastic analysis procedures.

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