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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 59
DEVELOPMENTS IN ANALYSIS AND DESIGN USING FINITE ELEMENT METHODS Edited by: B.H.V. Topping and B. Kumar
Paper VII.1
Nonlinear Finite Element Method for RC Shear Wall Structures P. Shen*, J. Ye+ and S. Cai*
*Department of Civil Engineering, Hunan University, Changsha, People's Republic of China
P. Shen, J. Ye, S. Cai, "Nonlinear Finite Element Method for RC Shear Wall Structures", in B.H.V. Topping, B. Kumar, (Editors), "Developments in Analysis and Design using Finite Element Methods", Civil-Comp Press, Edinburgh, UK, pp 181-186, 1999. doi:10.4203/ccp.59.7.1
Abstract
This paper presents a method which can be used to study the
post-failure behavior of low-rise reinforced concrete (RC)
shear wall structures subjected to axial and lateral loads. The
method is based on a nonlinear plane stress finite element
modeling. In the analysis cracked reinforced concretes are
located as orthotropic materials on the basis of a smeared,
rotating crack model. The geometrical non-linearity is taken
into account by using Green's strain formulation. To trace
the non-linear equilibrium path beyond the limit point, an
iterative incremental displacement method is established by
combining the new element formulation and Newton-Raphson method. Numerical examples are provided to show
the effectiveness and efficiency of the method. Numerical
results for pre-failure analysis obtained by using present
method are compared with those obtained either numerically
or experimentally and available in the literature. The
comparisons show that the present study can provide not
only a satisfactory pre-failure analysis but also a higher
convergent rate in the non-linear iterations. New results are
presented to show the post-failure behavior of the RC shear walls.
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