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

[摘要] 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 300°C 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.

[发布机构] City University of London, London, United Kingdom^1

[学科分类] 土木及结构工程学

[关键词] Bond behaviours;Bond properties;Bond stiffness;Elevated temperature;Fibre reinforced polymers;High temperature;Temperature increase;Temperature range