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>Experimental and numerical studies on punching shear strength of concrete slabs containing sintered fly ash aggregates
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Experimental and numerical studies on punching shear strength of concrete slabs containing sintered fly ash aggregates
This paper presents experimental and numerical investigations on M30 grade of concrete containing 40% of sintered fly ash aggregates (SFAs) on the punching behaviour of reinforced concrete (RC) slabs. Two 1000 x 1000 x 100 mm reinforced concrete slabs were cast and subjected to punching tests. The experimental results were compared with creating a nonlinear finite element programme using ABAQUS. These 3D Finite element analyses were performed with the appropriate modelling of element size and the constitutive modelling of concrete. The material parameters of the damaged plasticity model in ABAQUS were calibrated based on the test results of the slab – plate connection. The comparison between experimental and numerical results indicates that the calibrated model correctly predicts the punching shear response of the slabs. A modification of 0.4 is introduced in MC2010 code.
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机译:本文介绍了含有40%烧结粉煤灰(SFA)的M30级混凝土对钢筋混凝土(RC)板的冲压行为的实验性和数值研究。两种1000 x 1000 x 100 mm钢筋混凝土板被铸造并进行冲压试验。将实验结果与使用ABAQUS产生非线性有限元件进行比较。通过适当的元素尺寸和混凝土构成建模进行这些3D有限元分析。基于平板板连接的测试结果校准ABAQUS中损坏可塑性模型的材料参数。实验和数值结果之间的比较表明校准模型正确预测板坯的冲压剪切响应。在MC2010代码中引入了0.4的修改。
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