Research on optimal design of mechanical properties of hybrid fiber-reinforced concrete

doi:10.1002/suco.202100635

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Research on optimal design of mechanical properties of hybrid fiber-reinforced concrete
	Li, Jiangchuan 1; Chang, Jun 1; Qiao, Hongxia 2
刊名	Structural Concrete
	2022-06-01
卷号	23 期号:3 页码:1625-1641
关键词	Compressive strength Failure (mechanical) Polypropylenes Reinforced concrete Steel fibers Tensile strength Basalt fiber Failure state Fiber types Fibers content Hybrid fiber-reinforced concrete Optimal design Orthogonal experiment Prediction modelling Strength prediction Strength prediction model
ISSN号	1464-4177
DOI	10.1002/suco.202100635
英文摘要	In this study, the influence of the dosage optimization of steel fibers (SFs), basalt fibers (BFs), and polypropylene fibers (PPFs) on the mechanical properties of hybrid fiber-reinforced concrete (HFRC) is investigated, including cube compressive strength, splitting tensile strength, and prism compressive strength. The orthogonal method was used to design the fiber mixtures to optimize the performance of the specimens. IBM SPSS Statistics software was used to analyze the significance sequence of the influencing factors of SFs, BFs, and PPFs through range and variance. The influence degree and significant affecting factors of the three fiber types were obtained, and the failure states of the HFRC specimens were analyzed. Finally, a strength prediction model for HFRC was established based on the test results. The results show that for the degree of influence on the strength of HFRC, the degree of influence of SFs was greater compared to BFs, and the degree of influence of PPFs was the smallest. In addition, for the factors that affect the strength of HFRC, the content of SFs was the primary factor, the fiber content of BFs was less important, and the content was not an important factor for PPFs. The strength prediction model established based on the orthogonal test data can well reflect the influence of three fibers types and contents on the strength of HFRC. In order to verify the validity of the present model, experimental results reported in the literature were compared with the values calculated with the present model. © 2022 International Federation for Structural Concrete.
语种	英语
出版者	John Wiley and Sons Inc
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159153]
专题	土木工程学院
作者单位	1.School of Civil Engineering, Dalian University of Technology, Dalian, China; 2.Engineering Research Center of the Western Ministry of Education for Civil Engineering of Disaster Prevention and Disaster Reduction, Lanzhou University of Technology, Lanzhou, China
推荐引用方式 GB/T 7714	Li, Jiangchuan,Chang, Jun,Qiao, Hongxia. Research on optimal design of mechanical properties of hybrid fiber-reinforced concrete[J]. Structural Concrete,2022,23(3):1625-1641.
APA	Li, Jiangchuan,Chang, Jun,&Qiao, Hongxia.(2022).Research on optimal design of mechanical properties of hybrid fiber-reinforced concrete.Structural Concrete,23(3),1625-1641.
MLA	Li, Jiangchuan,et al."Research on optimal design of mechanical properties of hybrid fiber-reinforced concrete".Structural Concrete 23.3(2022):1625-1641.