摘要
钢纤维混凝土(SFRC)作为一种纤维增强混凝土,具有比普通混凝土更为优异的抗弯拉、抗裂及更为良好的冲击韧性等特点,但由于钢纤维混凝土造价高,施工困难,其发展受到了阻碍。为了更有效地解决目前SFRC存在的一些问题,从而为深入开展SFRC力学性能研究及推广提供有效信息,本文对目前SFRC静力及疲劳性能的研究进行了总结归纳。首先,从钢纤维增强混凝土的机理入手,阐述了钢纤维对混凝土性能产生增强效果的具体理论依据;其次,从钢纤维掺量、纤维长度、形状及纤维在混凝土中的分布形式等方面,阐述了钢纤维对混凝土静力性能与疲劳性能的影响规律;最后,对当前研究的阶段性成果及不足进行了展望。
steel fiber reinforced concrete(SFRC),as a kind of fiber reinforced concrete,has the characteristics of better flexural tensile resistance,crack resistance and better impact toughness compared with ordinary concrete.However,due to the high cost of SFRC and the difficulty of construction,it is unpopular in practical engineering.In order to solve the existing problems of SFRC more effectively,and provide effective information for further research of mechanical properties and promotion of SFRC,the current research on SFRC static and fatigue properties is summarized in the paper.Firstly,from the mechanism of steel fiber reinforced concrete,the specific theoretical basis of the reinforcing effect of steel fiber on concrete performance is elaborated.Secondly,from the aspects of steel fiber content,fiber length,shape and fiber distribution in concrete,the influence of steel fiber on the static and fatigue properties of concrete is expounded.Finally,the staged achievements and shortcomings of the current research are prospected.
作者
常晟
罗云蓉
付磊
CHANG Sheng;LUO Yunrong;FU Lei(School of Civil Engineering,Sichuan University of Science&Engineering,Zigong 643000,China;School of Mechanical Engineering,Sichuan University of Science&Engineering,Yibin 644000,China)
出处
《四川轻化工大学学报（自然科学版）》
CAS
2022年第3期84-92,共9页
Journal of Sichuan University of Science & Engineering(Natural Science Edition)
基金
四川省粉末冶金工程技术研究中心开放基金课题项目(SC-FMYJ2019-07)
过程装备与控制工程四川省高校重点实验室项目(GK201808
GK201816)。
关键词
钢纤维
混凝土
力学性能
疲劳
steel fiber
concrete
mechanical property
fatigue
