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Criteria for punching failure mode in RC slabs reinforced by externally bonded CFRP

机译：外部粘结CFRP加固的RC板的冲孔破坏模式准则

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摘要

This paper presents the experimental investigations and a specific failure criterion for evaluating the ultimate punching load of concrete slabs strengthened by composite materials. First, the flexural mode failure is calculated by the yield lines method to ensure that it was the punching phenomenon that caused the break. The analytical model for punching failure of reinforced concrete slabs developed by Menetrey [Menetrey P. Synthesis of punching failure in reinforced concrete. Cem Concr Comp 2002;24:497-507] is used. For RC slabs reinforced by composite materials, the punching load is calculated by the Rochdi enhancement model [Rochdi EH, Bigaud D, Ferrier E, Hamelin P. Ultimate behaviour of CFRP strengthened RC flat slabs under a centrally applied load. Comp Struct 2006;72:69-78]. Finally, the experimental values are compared to the analytical model values to validate the method of calculation.
机译：本文介绍了用于评估复合材料增强的混凝土板的极限冲切载荷的实验研究和特定的破坏准则。首先，通过屈服线法计算弯曲模式破坏，以确保是造成断裂的冲压现象。 Menetrey [Menetrey P.开发的钢筋混凝土板冲孔破坏分析模型。 Cem Concr Comp 2002； 24：497-507]。对于由复合材料增强的RC平板，冲切荷载通过Rochdi增强模型[Rochdi EH，Bigaud D，Ferrier E，Hamelin P. CFRP增强的RC平板在集中施加的荷载下的极限性能来计算。 Comp Struct 2006; 72：69-78]。最后，将实验值与分析模型值进行比较，以验证计算方法。

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