[提要]  给出了以芳纶纤维增强复合塑料AFRP作为预应力筋的高强混凝土梁的弯曲特性及延性的试验结果，并提出用一个综合考虑强度与能量等因素的总体因子作为定义AFRP预应力混凝土梁的延性指标。
[关键词]  AFRP筋  预应力混凝土梁  弯曲特性  延性  总体因子

This paper presents experimental results on the flexural behavior and ductility of High Strength Concrete( HSC) beams prestressed by Aramid Fiber Reinforced Plastic( AFRP) tendons. A new definition of an overall factor expressed as a combination of the strength factor and energy factor is given as an indicator of ductility of beams prestressed with AFRP tendons.
Keywords: AFRP tendons; prestressed high strength concrete beam; flexural behavior; ductility; overall factor