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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 54
ADVANCES IN FINITE ELEMENT PROCEDURES AND TECHNIQUES
Edited by: B.H.V. Topping
Paper V.1

Advanced Nonlinear Analysis of 3D Reinforced Concrete Frames

B.A. Izzuddin and D. Lloyd Smith

Civil Engineering Department, Imperial College, London, United Kingdom

Full Bibliographic Reference for this paper
B.A. Izzuddin, D. Lloyd Smith, "Advanced Nonlinear Analysis of 3D Reinforced Concrete Frames", in B.H.V. Topping, (Editor), "Advances in Finite Element Procedures and Techniques", Civil-Comp Press, Edinburgh, UK, pp 181-185, 1998. doi:10.4203/ccp.54.5.1
Abstract
This paper describes the extension of nonlinear adaptive analysis methods to 3D reinforced concrete (R/C) frames. An overview of the first two components of the proposed adaptive analysis method, namely the elastic and elasto-plastic beam-column formulations, is provided. This is followed be a discussion of the requirements of the automatic mesh refinement procedure, representing the third component of adaptive analysis, particularly with regard to its application to 3D reinforced concrete frames. An example of a 3D R/C frame subject to earthquake loading is finally presented, using the nonlinear analysis program ADAPTIC, which illustrates the accuracy and considerable computational savings achieved by the proposed adaptive analysis method.

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