中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊
重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 1997, Vol. 16 ›› Issue (3): 41-48.

• • 上一篇    下一篇

长钢纤维混凝土抗拉比例极限及界面损伤的细观力学分析

蒙云1, 汤羽2   

  1. 1. 重庆交通学院桥梁工程系 400074;
    2. 重庆大学 400044
  • 收稿日期:1995-11-02 修回日期:1997-03-05 出版日期:1997-06-23 发布日期:2016-11-14
  • 作者简介:蒙云,男,1949年生,教授

Meso-mechanical Analysis to Tension Proportional Limit and Interficial Damage of Steel Fiber Reinforced Concrete

Meng Yun1, Tang Yu2   

  1. 1. Department of Bridge Engineering, Chongqing Jiaotong Institute 400074;
    2. Chongqing University 400044
  • Received:1995-11-02 Revised:1997-03-05 Online:1997-06-23 Published:2016-11-14

PDF

摘要： 对纤维体积掺量和长径比>80的钢纤维砼进行了细观力学分析,实验与分析结果表明:钢纤维的物理性质、几何参数分布形式以及与砼基体之间的界面粘结状态对钢纤维砼的宏观拉伸行为有着重要影响.由此导得的抗拉比例极限公式与试验结果吻合良好.

关键词: 钢纤维混凝土, 抗拉比例极限, 界面损伤, 细观力学分析

Abstract: Adding steel fiber to traditional concrete improves its tension strength and crack resistance to a great extent.By the meso-mechanical analysis presented in the paper, it reveals that the fiber's physical properties, geometrical conditions and the interficial bonding state have a marked effect on the macroscopic tension behavior of the composite.Theoretical formula of the tension proportional limit derived here gives a good agreement to the testing results.

Key words: steel fiber reinforced concrete, meso-mechanics tension proportional limit, interficial damage, meso-mechanical analysis