Crack propagation analysis of reinforced concrete wall under cyclic loading using RBSM
Crack propagation analysis of reinforced concrete wall under cyclic loading using RBSM
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DOI：
10.1080/19648189.2014.881755
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发表时间：
2014-06
影响因子：
2.1
通讯作者：
Yoshihito Yamamoto;Hikaru Nakamura;I. Kuroda;N. Furuya
中科院分区：
文献类型：
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作者：
Yoshihito Yamamoto;Hikaru Nakamura;I. Kuroda;N. Furuya
为了验证基于刚体弹簧模型（RBSM）的钢筋混凝土（RC）板和RC剪力墙在单调荷载和循环荷载作用下裂缝扩展行为的预测能力，本文对RC板和RC剪力墙进行了数值模拟。作者已经开发了具有随机几何形状的三维RBSM的本构模型，以定量评估包括软化和局部化断裂的力学响应，并已表明该模型可以很好地模拟RC构件的开裂和破坏行为。在这项研究中，本构模型进行了扩展，以包括循环效应和模型进行了验证，通过模拟的RC面板试验在循环荷载下，这是在文献中报道的。此外，模拟的RC剪力墙测试，这是测试的背景下，国际基准ConCrack（http：//www.concrack.org/）进行，并讨论了该模型的能力，以预测详细的开裂信息，如裂缝宽度，间距和扩展方向。
This paper presents the numerical simulations of the reinforced concrete (RC) panels and the RC shear walls under monotonic and cyclic loading in order to validate the ability of the proposed model which is based on the Rigid-Body-Spring Model (RBSM) to predict the crack propagation behaviours. The authors have already developed constitutive models for the three-dimensional RBSM with random geometry in order to quantitatively evaluate the mechanical responses including softening and localization fractures, and have shown that the model can well simulate the cracking and failure behaviours of RC members. In this study, the constitutive models were extended to include cyclic effects and the model was validated through the simulations of the RC panel tests under cyclic loadings, which were reported in the literatures. Furthermore, the simulations of the RC shear wall tests, which were tested in the context of the international benchmark ConCrack (http://www.concrack.org/) were carried out, and the capability of the model to predict the detailed cracking information, such as crack width, spacing and direction of propagation is discussed.