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Research progress on short-term mechanical properties of frp bars and frp-reinforced concrete beams

Journal of Traffic and Transportation Engineering(English Edition) 2024年第2期11卷 245-270页

作者： Lili Xing Shengjiang Sun Kuihua Mei Yiping Guo Zhenhong Yang School of Highway Chang'an UniversityXi'an 710064China

Fiber-reinforced polymer(frp)bars have been increasingly recognized in the field of civil engineering due to their advantages of light weight,high strength and excellent *** bars can replace steel bars in concrete beams and effectively improve the durability of *** this paper,the literature relevant to the short-term mechanical properties of frp bars and frp-reinforced concrete beams was reviewed based on previous studies and practical engineering ***,the mechanical properties of frp bars were *** types of fibers or steel and fibers can be combined to obtain hybrid fiber-reinforced polymer(Hfrp)or steel-fiber composite bars(SFCB)with excellent mechanical performance,*** bond performance and bond-slip model between frp bars and concrete were *** common bond-slip models were usually used to study the bond performance between carbon fiber-reinforced polymer(Cfrp)bars or glass fiber-reinforced polymer(Gfrp)bars and concrete,but changing the type of frp bars will lead to larger ***,the experimental studies,theoretical calculation methods and finite element simulation methods of flexural/shear behavior of frp-reinforced concrete beams were ***,their applications in practical engineering were discussed and the prospects of further research were *** is pointed out that frp-reinforced ultra-high performance concrete(UHPC)beams,frp-reinforced geopolymer concrete(GPC)beams,engineered cementitious composites(ECC)-frp-reinforced concrete beams,prestressed frp-reinforced concrete beams and steel/frp hybrid-reinforced concrete beams can effectively improve the deformation resistance and poor ductility of pure frp-reinforced concrete beams.

关键词： frp bars Bond performance Flexural/shear behavior Civil engineering

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