钢筋与 FRP 筋混杂配筋混凝土梁的抗弯性能

doi:10.12066/j.issn.1007-2861.2246

Abstract

Abstract:

To conduct an experimental study of the flexural theory of hybrid steel and fibre reinforced plastic (FRP) reinforced beams, the finite element software ABAQUS was used to model and nonlinearly analyse existing hybrid FRP/steel reinforced test beams. The effects of FRP bar type, concrete strength, and the equivalent reinforcement ratio on the bending performance of hybrid FRP/steel reinforced beams were then studied. Finite element results revealed that the stress expression of FRP bars could be obtained and a formula for the bearing capacity of hybrid FRP reinforced beams could be derived. Finally, experimental data were used to verify the correctness of the formula. Results showed that the equivalent reinforcement ratio had the most significant effect on the bearing capacity and deformation performance of hybrid FRP bars beams, followed by FRP bar type. The strength of concrete had a certain effect on the bearing capacity but had little effect on stiffness. Based on the stress expression of FRP bars in this study, the flexural capacity of hybrid FRP reinforced beams were accurately calculated.

Key words: fibre reinforced plastic (FRP), concrete beam, finite element analysis, flexural performance, stress expression

CLC Number:

TU377.94

ZHANG Zhimei, WEI Jiuyi. Flexural performance of hybrid steel and FRP reinforced concrete beams[J]. Journal of Shanghai University（Natural Science Edition）, 2022, 28(4): 678-688.

Figures/Tables 10

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References 13

[1]	杨健. 混合FRP筋混凝土梁受弯性能研究[D]. 重庆: 重庆大学, 2012.
[2]	叶列平, 冯鹏. FRP 在工程结构中的应用与发展[J]. 土木工程学报, 2006, 39(3): 24-36.
[3]	Mustafa S A A, Hassan H A. Behavior of concrete beams reinforced with hybrid steel and FRP composites[J]. HBRC Journal, 2018, 14(3): 300-308. doi: 10.1016/j.hbrcj.2017.01.001
[4]	郝庆多, 王勃, 欧进萍. 纤维增强塑料筋在土木工程中的应用[J]. 混凝土, 2006(9): 38-40.
[5]	Ombres A. Structural performances of concrete beams with hybrid fiber-reinforced polymer-steel reinforcements[J]. J. Compos Constr, 2002, 6(2): 133-140. doi: 10.1061/(ASCE)1090-0268(2002)6:2(133)
[6]	Lau D, Pam H. Experimental study of hybrid FRP reinforced concrete beams[J]. Engineering Construction, 2010, 32(12): 3857-3865.
[7]	孔祥清, 于洋, 邢丽丽. BFRP 筋与钢筋混合配筋混凝土梁抗弯性能试验研究[J]. 玻璃钢/复合材料, 2018, 295(8): 49-55.
[8]	Ge W, Zhang J, Cao D, Tu Y. Flexural behaviors of hybrid concrete beams reinforced with BFRP bars and steel bars[J]. Construction and Building Materials, 2015, 87: 28-37. doi: 10.1016/j.conbuildmat.2015.03.113
[9]	葛文杰, 张继文, 戴航. FRP 筋和钢筋混合配筋增强混凝土梁受弯性能[J]. 东南大学学报(自然科学版), 2012(1): 118-123.
[10]	张晓亮. 混合配筋混凝土梁抗弯性能研究[J]. 结构工程师, 2013(03): 137-142.
[11]	Qu W, Zhang X, Huang H. Flexural behavior of concrete beams reinforced with hybrid (GFRP and steel) bars[J]. Journal of Composites for Construction, 2009, 13(5): 350-359. doi: 10.1061/(ASCE)CC.1943-5614.0000035
[12]	黄海群. 混杂配筋混凝土梁抗弯性能研究[D]. 上海: 同济大学, 2004.
[13]	Kara I F, Ashour A F. Flexural behavior of hybrid FRP/steel reinforced concrete beams[J]. Composite Structures, 2015, 129: 111-121. doi: 10.1016/j.compstruct.2015.03.073

Flexural performance of hybrid steel and FRP reinforced concrete beams

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