ABSTRACT

A new three-dimensional finite element modeling methodology for nonlinear analysis of reinforced concrete walls is developed and implemented in OpenSees software. The model is validated against broad experimental data obtained for nine planar (unidirectional loading) and two U-shaped (multidirectional loading) specimens. Results of the detailed validation studies presented indicate that the proposed model can accurately capture a wide range of measured global (e.g., load-deformation) and local (e.g., strains) wall responses. However, the model fails to capture the loss of wall lateral load capacity observed in experiments due to various complex failure mechanisms that are not incorporated in presented model formulation.

摘要

在 OpenSees 软件中开发并实施了一种新的用于钢筋混凝土墙非线性分析的三维有限元建模方法。该模型针对九个平面（单向加载）和两个 U 形（多向加载）试样获得的广泛实验数据进行了验证。所提出的详细验证研究的结果表明，所提出的模型可以准确地捕获广泛的测量全局（例如，负载变形）和局部（例如，应变）壁响应。然而，由于各种复杂的失效机制未包含在所提出的模型公式中，该模型未能捕捉到实验中观察到的墙体横向承载能力的损失。