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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 43
ADVANCES IN COMPUTATIONAL TECHNIQUES FOR STRUCTURAL ENGINEERING
Edited by: B.H.V. Topping
Paper VII.3

Increasing of Numerical Efficiency in Nonlinear Analysis of Reinforced Concrete Beam Elements

M. Sekulovic*, D. Milasinovic# and D. Kovacevic#

*Civil Engineering Faculty, University of Belgrade, Belgrade, Yugoslavia
#Civil Engineering Faculty, University of Novi Sad, Novi Sad, Yugoslavia

Full Bibliographic Reference for this paper
M. Sekulovic, D. Milasinovic, D. Kovacevic, "Increasing of Numerical Efficiency in Nonlinear Analysis of Reinforced Concrete Beam Elements", in B.H.V. Topping, (Editor), "Advances in Computational Techniques for Structural Engineering", Civil-Comp Press, Edinburgh, UK, pp 139-150, 1996. doi:10.4203/ccp.43.7.3
Abstract
This paper presents a possibilities for increasing the efficiency of non-linear analysis for reinforced concrete beam structures by application of the finite element method (FEM). A various procedures for discretization of the beam structures are discussed. Special attention is paid to the two-dimensional beam finite element (beam FE).

Opposite to standard approach (i.e. Finite Layer Technique - FLT), which means discrete change of material properties, proposed procedure suggest calculation of crosssection stiffness based on "continuous" change of material properties. If discretization is performed by a low number of layers, because of assumption of constant axial stress, in standard FLT, errors appear in approximation. Proposed procedure partially solve this problem.

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