Impact tests on dynamic compressivebehaviors of steel fiber reinforced concrete at elevated temperature

被引：0
作者：
Peng S. [1 ]
Li L. [1 ]
Wu J. [1 ,2 ]
Jiang X. [3 ]
Du X. [1 ]
机构：
[1] The Key Laboratory of Urban Security and Disaster Engineering Ministry of Education, Beijing University of Technology, Beijing
[2] School of Urban Railway Transportation, Shanghai University of Engineering Science, Shanghai
[3] Army Artillery and Air Defense Force Academy, Hefei
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2019年 / 38卷 / 22期
关键词：
Dynamic compressive behavior; Elevated temperature; High strain rate; Split Hopkinson pressure bar(SHPB) test; Steel fiber reinforced concrete(SFRC);
D O I：
10.13465/j.cnki.jvs.2019.22.021
中图分类号：
学科分类号：
摘要：
Dynamic compressive tests of steel fiber reinforced concrete (SFRC) specimens with different fiber content (1% and 2%) at different temperature (20℃, 200℃, 400℃, 600℃ and 800℃)were carried out by using the split Hopkinson pressure bar and resistance heating stove.The dynamic stress-strain curves at different temperature were obtained, and the corresponding dynamic compressive strength and peak strain were presented. The test results show that SFRC has obvious strain rate strengthening effect and temperature damage effect. At the different test temperature, the dynamic compressive strength of SFRC increases with the increase of strain rate. At the same loading speed, the dynamic compressive strength of SFRC is greatly reduced with the increase of test temperature.Compared with normal concrete, the impact resistance of SFRC is greatly improved. © 2019, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：149 / 154
页数：5
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