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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 59
Edited by: B.H.V. Topping and B. Kumar
Paper II.1

On an Exact Calculation Method for Structural Modification

M. Cheikh, A. Loredo, S. Aivazzadeh and G. Verchery

Laboratoire de Recherche en Mecanique et Acoustique, ISAT, Nevers, France

Full Bibliographic Reference for this paper
M. Cheikh, A. Loredo, S. Aivazzadeh, G. Verchery, "On an Exact Calculation Method for Structural Modification", in B.H.V. Topping, B. Kumar, (Editors), "Developments in Analysis and Design using Finite Element Methods", Civil-Comp Press, Edinburgh, UK, pp 33-39, 1999. doi:10.4203/ccp.59.2.1
This work is about a direct method for the static reanalysis of structures. We use the concept of the reflexive inverse to express a general solution of discrete structure regardless of boundary conditions. We present a decomposition method for the stiffness matrix in order to avoid its inversion. We provide a comparison between the calculation time of this method and the one taken by a traditional approach. We also demonstrate the capability of this method to solve reanalysis problems involving stiffness modifications.

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