采用变截面霍普金森杆( SHPB) 对不同配比的钢/PVA 纤维混合增强水泥基复合材料( HFRCC) 进行了不同应变率的冲击压缩实验，并对其抗压强度、峰值应变和韧性等 动力性能进行对比分析． 结果表明: HFRCC 材料表现出应变率敏感性; 随着PVA 纤维的 增加，材料的变形性能更好，而钢纤维的加入则提高了其动态抗压强度; PVA 纤维含量的增加能降低材料的动态强度增长因子; 在低应变率下和峰值应力之前，纤维间的相对含量对HFRCC 的韧性影响不大，在高应变率下，钢纤维能有效提高其韧性．

The impact compression tests of hybrid fiber ( steel and polyvinyl alcohol ( PVA) fiber) -reinforced cement- based composites ( HFRCC) of different ratios were conducted at different strain rates by using a split Hopkinson pressure bar ( SHPB) . Then, their dynamic compressive strength, peak strain and tenacity are compared. The results show that (1) HFRCC is sensitive to strain rates; (2) the peak strain increases with the PVA fiber content and the addition of steel fiber can increase the dynamic compressive strength; (3) to increase the PVA fiber content can decrease the dynamic strength increase factor; and (4) at a low strain rate and before the stress reaches up to a peak, the relative contents of two kinds of fibers have little influence on the tenacity of HFRCC. At a high strain rate, however, the steel fiber can effectively improve the tenacity of HFRCC.