Fatigue Behavior of Steel Fiber Reinforced High-Strength Concrete under Different Stress Levels

1st International Conference on Frontiers of Materials Synthesis and Processing

材料科学;化学

Zhang, Chong^1 ; Gao, Danying^1,2 ; Gu, Zhiqiang^1

School of Water Conservancy and Environment, Zhengzhou University, Zhengzhou

450001, China^1

Henan University of Engineering, Zhengzhou

451191, China^2

关键词: Fatigue behavior;    Flexural fatigue;    Life prediction models;    S-N curve;    Static tests;    Steel fiber reinforced high strength concrete;    Stress levels;    Tensile reinforcement;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/274/1/012067/pdf
DOI  :  10.1088/1757-899X/274/1/012067

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The investigation was conducted to study the fatigue behavior of steel fiber reinforced high-strength concrete (SFRHSC) beams. A series of 5 SFRHSC beams was conducted flexural fatigue tests at different stress level S of 0.5, 0.55, 0.6, 0.7 and 0.8 respectively. Static test was conducted to determine the ultimate static capacity prior to fatigue tests. Fatigue modes and S-N curves were analyzed. Besides, two fatige life prediction model were analyzed and compared. It was found that stress level S significantly influenced the fatigue life of SFRHSC beams and the fatigue behavior of SFRHSC beams was mainly determined by the tensile reinforcement.