Journal of Earthquake Engineering | 2019
Nonlinear Finite Element Modeling of Reinforced Concrete Walls with Varying Aspect Ratios
Abstract
ABSTRACTA relatively simple finite element modeling approach – named the Fixed-Strut-Angle Finite Element (FSAFE) Model – is presented in this paper for simulating the hysteretic lateral load behavior of reinforced concrete structural walls with varying levels of flexural and shear deformation contributions on wall response. The behavioral characteristics of the constitutive panel elements incorporated in the model formulation are based on a fixed-crack-angle modeling methodology that also incorporates simple behavioral models for shear–aggregate interlock in concrete and dowel action on reinforcing bars, constituting the shear stress transfer mechanisms across the cracks. Model response predictions are compared with experimentally measured responses of selected wall specimens with varying geometry and reinforcement characteristics; including relatively slender (aspect ratio of 3.0) flexure-controlled walls with rectangular and T-shaped cross-sections, medium-rise walls (aspect ratios of 1.5 and 2.0) with...