采用长度9mm、直径约0.45mm的平直型超短钢纤维 ,配制了钢纤维体积含量0%、3%和6%的钢纤维高强混凝土 ,对它们进行了准静态的压缩试验和冲击压缩试验 ,得到两种材料在不同应变速率下的全过程应力应变曲线 ,对比分析了静态和动态条件下钢纤维含量对超短钢纤维高强混凝土的影响。 A steel fiber high-strength concrete with steel fiber volume contents of 0%, 3% and 6% was prepared using flat ultra-short steel fibers with a length of 9 mm and a diameter of about 0.45 mm. They were subjected to quasi-static compression tests and impact compression tests. The whole process stress and strain curves of the two materials at different strain rates were obtained, and the effects of steel fiber content on ultra-short steel fiber high-strength concrete under static and dynamic conditions were compared and analyzed.