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Volume 13 | Issue 5 | Year 2026 | Article Id. IJCE-V13I5P114 | DOI : https://doi.org/10.14445/23488352/IJCE-V13I5P114

Linking Curvature, Rotation, and Displacement Ductility in RC Shear Walls: A Critical Review and Unified Assessment Framework

Anasuya Mondal, Santanu Bhanja

Received Revised Accepted Published
20 Feb 2026 06 Apr 2026 22 Apr 2026 29 May 2026

Citation :

Anasuya Mondal, Santanu Bhanja, "Linking Curvature, Rotation, and Displacement Ductility in RC Shear Walls: A Critical Review and Unified Assessment Framework," International Journal of Civil Engineering, vol. 13, no. 5, pp. 203-221, 2026. Crossref, https://doi.org/10.14445/23488352/IJCE-V13I5P114

Abstract

Shear walls made of Reinforced Concrete (RC) are commonplace and popular as load-resisting systems against lateral movement in seismic locations because of their high stiffness and strength. The ductility of their seismic performance is largely determined by the way they can maintain inelastic deformation without much loss in strength to have the capacity to perform well in seismic activities. This paper is a synthesis of experimental data, model analysis, and code clauses that have been developed in the last 50 years to give a complete picture of shear wall ductility. The experimental results are based on a broad scope of isolated wall tests with different aspect ratios, degree of axial loads, and reinforcement configurations. Analytical methods are also discussed, starting with early shear flexure interaction models with fibre section formulations, until current nonlinear finite element methods and coupled shear flexure models. A comparison is made between the ductility requirements of four widely used international codes, namely Eurocode 8, ACI 318, NZS 3101, and IS 13920, based on the curvature ductility demand, boundary element confinement, and displacement capacity. According to these complementary sources, a unified judgment structure is built in order to correlate the various measures of ductility. The suggested framework illustrates that a regular comparison of codes demands that the two levels of ductility and the performance levels should be aligned. Finally, the paper offers practical design and assessment recommendations based on both the proven information and present findings of significant campaigns of earthquake reconnaissance and large-scale experiments.

Keywords

Curvature Ductility, Rotation Ductility, Displacement Ductility, Reinforced Concrete Shear Walls, Plastic Hinge, Seismic Design.

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