In this study, effect of varying opening location and size on the punching behavior of two-way RC flat slabs was investigated through the finite element analyses. For this purpose, the two-way RC flat slabs with openings in the literature done by the authors were simulated using finite element modeling technique. The variables that were investigated in the study are the location and size of the opening. For the study, two-way square slabs having the dimensions of 2000 × 2000 × 120 mm with openings were analyzed. The nonlinear analyses were performed using the ANSYS FEA software with reference to the experimental data. The experimental results were compared with the finite element analyses results. According to the results of this study, it was shown that when properly modeled, finite element simulations may be used as efficient tools for estimating the nonlinear behavior of flat slabs with openings subjected to punching capacities. Simulations performed using verified finite element models estimated the punching shear force capacity of the flat slabs with variable openings with 7% average error. Moreover, the load–displacement relationships of the specimens are estimated in good agreement with their experimental counterparts.

中文翻译：

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两路钢筋混凝土板开孔冲孔行为的非线性有限元分析

在这项研究中，通过有限元分析研究了不同开口位置和尺寸对双向钢筋混凝土平板冲压性能的影响。为此，作者使用有限元建模技术对作者文献中的带开口的双向钢筋混凝土平板进行了模拟。研究中调查的变量是开口的位置和大小。在这项研究中，分析了尺寸为 2000 × 2000 × 120 mm 且带开口的双向方板。非线性分析是使用ANSYS FEA软件参考实验数据进行的。将实验结果与有限元分析结果进行了比较。根据这项研究的结果，表明当正确建模时，有限元模拟可用作估算具有受冲孔能力影响的开口的平板的非线性行为的有效工具。使用经过验证的有限元模型进行的模拟估计了具有可变开口的平板的冲剪力能力，平均误差为 7%。此外，估计试样的载荷-位移关系与其实验对应物非常一致。