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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Comparative Study of State-of-the-Art Macroscopic Models for Planar Reinforced Concrete Walls
Author(s): K. Kolozvari, C. Arteta, M. Fischinger, S. Gavridou, M. Hube, T. Isakovic´, L. Lowes, K. Orakcal, J. Vásquez, and J. Wallace
Publication: Structural Journal
Appears on pages(s): 1637-1657
Keywords: macroscopic models; nonlinear modeling; performance-based design; reinforced concrete walls
Abstract:Over the past 20 years, a spectrum of analytical models for nonlinear analysis of reinforced concrete (RC) structural walls, with varying capabilities and complexities, have become available for both research and design applications. Five conceptually different state-of-the-art macroscopic models were described, including two-node and four-node elements, based on either a fiber-based representation of a wall cross section or a strut-and-tie approach, using either force-deformation or strain-stress material behavior, and considering either coupled or uncoupled axial/flexural and shear responses. Modeling approaches were validated against experimental data obtained for five RC wall specimens characterized by a range of properties (for example, aspect ratio, axial load, and failure mechanism) to assess current modeling capabilities and identify future research directions. Results presented suggest that the considered analytical models typically overestimate initial wall stiffness, models with uncoupled flexural and shear behavior overestimate lateral capacity of walls where shear deformations are significant, models with shear-flexure interaction can capture nonlinear shear deformations, and that vertical strains within the plastic hinge region can be either overestimated or underestimated by a factor of 2 in the nonlinear response range using the plane sections assumption.
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