High performance fiber reinforced cementitious composites (HPFRCC) material exhibits strain-hardening and multiple cracking behaviors. Using HPFRCC in the reinforced concrete (RC) frame is considered to improve the seismic performance and damage mechanism of structure. Three beam-column-slab subassemblies were tested under cyclic loading, and eight frame models were simulation by ABAQUS. In this paper, the effect of substitution of concrete with HPFRCC on the seismic performance and damage mechanism of subassemblies was investigated. According to the test results, the lateral bearing capacity and deformability of beam-column-slab subassemblies increased by above 10% through using the HPFRCC material in the expected damage positions. The shear resistance of the joint zone with HPFRCC material increased by 1.6%, the shear deformation of the joint zone decreased by 7.9%. And the contribution of slab bars to the beam flexural bearing strength also decreased for that the yielding range and the strain amplitude of slab bars are limited through using HPFRCC material. Consequently, the subassemblies were prone to the “strong column — weak beam” damage mechanism to using HPFRCC material in the expected damage positions.

高性能纤维增强水泥基复合材料（HPFRCC）材料具有应变硬化和多重开裂行为。人们认为在钢筋混凝土框架中使用HPFRCC可以改善结构的抗震性能和破坏机理。在循环载荷下测试了三个梁柱平板子组件，并通过ABAQUS模拟了八个框架模型。本文研究了用HPFRCC替代混凝土对子组件的抗震性能和破坏机理的影响。根据测试结果，通过在预期损坏位置使用HPFRCC材料，梁柱平板子组件的侧向承载能力和可变形性提高了10％以上。使用HPFRCC材料的接缝区的抗剪强度提高了1.6％，接头区的剪切变形降低了7.9％。由于使用HPFRCC材料限制了板坯的屈服范围和应变幅度，因此板坯对梁抗弯承载强度的贡献也降低了。因此，子组件容易受到“强柱-弱光束”损坏机制的影响，在预期的损坏位置使用HPFRCC材料。