期刊
APPLIED SCIENCES-BASEL
卷 9, 期 22, 页码 -出版社
MDPI
DOI: 10.3390/app9224790
关键词
steel fiber reinforced concrete beam; shear strength; high strength concrete; fiber effectiveness factor; flexural-shear failure; shear failure
类别
资金
- Ministry of Science and Technology (MOST) of Taiwan [108-2221-E-002-019-MY3, 108L892503]
Conducting research on steel fiber-reinforced concrete (SFRC) beams without stirrups, particularly the SFRC beams with high-strength concrete (HSC) and high-strength steel (HSS) reinforcing bars is essential due to the limitation of test results of high strength SFRC beams with high strength steel reinforcing bars. Eight shear strength prediction equations for analysis and design of the SFRC beam derived by different researchers are summarized. A database was constructed from 236 beams. Accordingly, the previous shear strength equations can be evaluated. Ten high-strength SFRC beams subjected to monotonic loading were prepared to verify the existing shear strength prediction equations. The equations for predicting shear strength of the SFRC beam are proposed on the basis of observations from the test results and evaluation results of the previous shear strength equations. The proposed shear strength equation possesses a reasonable result. For alternative analysis and design of the SFRC beams, ACI 318-19 shear strength equation is modified to consider steel fiber parameters.
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