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Constitutive behaviour of confined fibre reinforced concrete under axial compression

机译:承压纤维混凝土的轴向压缩本构特性

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摘要

Steel fibre reinforced concrete is finding extensive use in field applications. The mechanism of delaying and arresting crack propagation by the fibres can be made use in passive confinement of concrete. Such concrete was termed as confined fiber reinforced concrete (CFRC). This paper presents an analytical model for predicting the stress-strain behaviour of CFRC based on the experimental results. A total of ninety prisms of size 150 X 150 X 300 mm were cast and tested under strain control rate of loading. The increase in strength and strain of CFRC were used in formulating the constitutive relation.
机译:钢纤维增强混凝土正在现场应用中广泛使用。纤维延缓和阻止裂纹扩展的机理可以用于被动约束混凝土中。这种混凝土被称为承压纤维增强混凝土(CFRC)。本文基于实验结果提出了一种预测CFRC应力应变行为的分析模型。共铸造了90个尺寸为150 X 150 X 300 mm的棱镜,并在载荷的应变控制速率下进行了测试。 CFRC强度和应变的增加被用来表示本构关系。

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