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Numerical Analysis on Bond Strength of FRP Re-bars under Elevated Temperature

机译:升高温度下FRP再杆粘合强度的数值分析

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The bond behaviour between fibre reinforced polymer(FRP)and concrete at a different temperature,ranging from room temperature(20’C)to high temperature of up to 300°C,are modelled using the FEA in this paper.Four different commercially produced FRPs with different bond treatments and the bond properties were study in this temperature range.It is observe that when the temperature increases from 20’C to 30CPC the FRP’s bond strength reduced between 80 and 90%,however,this reduction for steel is only 38% at this temperature range.Also as the temperature increased a reduction in the bond stiffness has occurred.
机译:纤维增强聚合物(FRP)和混凝土在不同温度下的粘合行为,从室温(20'C)​​到高达300℃的高温,在本文中使用FEA模拟。更多的商业生产的FRPS具有不同的键处理和粘合性质在该温度范围内研究。观察到,当温度从20'C增加到30CPC时,FRP的粘合强度降低了80%和90%,但是这种钢的减少仅为38%在该温度范围内。随着温度的增加,粘合刚度的降低已经发生。

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