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A new approach for predicting the shear capacity of FRCM strengthened RC beams in shear

机译:预测FRCM强化RC梁剪切剪切容量的新方法

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In spite of the availability of different models proposed to predict the shear capacity of reinforced concrete (RC) beams strengthened in shear using fabric reinforced cementitious matrix (FRCM) system, accurately predicting this value remains a challenge. The simplified compression field theory has shown to accurately predict the shear capacity of RC beams. This paper presents an analytical model based on the simplified compression field theory for predicting the shear capacity of RC beams strengthened in shear using FRCM strengthening system. The model has been validated against a data series of over sixty RC beams strengthened in shear using different FRCM types with different strengthening configuration and orientation. The results showed that the model can reasonably predict the load carrying capacity of the beams. The ratio of theoretically predicted and experimental results for the load carrying capacity ranged between 0.67 and 1.33 while average of this ratio was 1.01 with a coefficient of variation of 0.16.
机译:尽管提出了不同模型的可用性,提出了使用织物增强水泥矩阵(FRCM)系统在剪切中加强的钢筋混凝土(RC)梁的剪切容量,准确地预测该值仍然是一个挑战。简化的压缩场理论已经表明,准确地预测RC光束的剪切容量。本文介绍了基于简化压缩场理论的分析模型,用于使用FRCM强化系统预测剪切中加固RC光束的剪切容量。该模型已被验证,用于使用不同的FRCM类型在剪切中加强的六十RC光束的数据系列,具有不同的强化配置和方向。结果表明,该模型可以合理地预测光束的承载能力。理论上预测和实验结果的负载承载能力的比率范围为0.67和1.33,而该比率的平均值为1.01,变异系数为0.16。

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