Study on Flexural Fatigue Performance and Damage Laws of Hybrid Fiber Reinforced Concrete

摘要

The flexural fatigue experiment of plain concrete (C) and Steel-Polypropylene Hybrid Fiber Reinforced Concrete (HFRC) is carried out to study the flexural fatigue performance and damage laws under cyclic loading. With the strain gauges pasted on the bottom of the specimens, the strain is collected by dynamic acquisition instrument.We obtain the fatigue life and the maximum strain-cyclic ratio (εmax-n/N) curves by counting and analyzing the results of fatigue experiment ,which move forward a single step for analysis of fatigue damage laws of HFRC. The study would provide reference for flexural fatigue properties of HFRC.