Punching shear resistance of concrete slabs using mode-II fracture energy

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• 作者：Ch. Naga Satish Kumar ; T.D. Gunneswara Rao ; ^{tdgtdg@gmail.com}
• 关键词：Punching shear ; Mode-II fracture parameters ; Double edge notched specimen
• 刊名：Engineering Fracture Mechanics
• 出版年：2012
• 出版时间：March, 2012
• 年：2012
• 卷：83
• 期：Complete
• 页码：75-85
• 全文大小：1311 K

文摘

In this paper an analytical model is presented to predict the punching shear resistance of concrete slabs using fracture energy concept. The mode-II fracture parameters are obtained by conducting the experiments on double edge notched specimens. The model predicts the force displacements resistance during punching and the stress distribution along the cracked surface. Experimental investigation on punching shear resistance of concrete slabs is also reported to compare the model. The punching shear tests showed that the thickness of slab had a strong influence on the punching shear strength and also very good agreement between the predicted and experimental results.