Numerical Simulation of Bonding Performance Between FRP Bars and Full Coral Aggregate Seawater Concrete

被引：0
|
作者：
Yin S. [1 ,2 ]
Li Y. [1 ]
Liu Y. [1 ]
机构：
[1] State Key Laboratory for Geomechanics & Deep Underground Engineering, China University of Mining and Technology, Xuzhou
[2] Jiangsu Key Laboratory of Environmental Impact and Structural Safety in Engineering, School of Mechanics & Civil Engineering, China University of Mining and Technology, Xuzhou
来源：
Yingyong Jichu yu Gongcheng Kexue Xuebao/Journal of Basic Science and Engineering | 2023年 / 31卷 / 01期
关键词：
Bonding performance; Coral aggregates; Finite element simulation; FRP bars; Numerical calculation; Seawater concrete;
D O I：
10.16058/j.issn.1005-0930.2023.01.016
中图分类号：
学科分类号：
摘要：
Good interfacial bonding performance is one of the important factors to ensure that FRP reinforced coral aggregate seawater concrete structure can work together and give full play to their excellent performance. Therefore, the interfacial bonding properties between the two under various influence conditions were studied by pull-out test.Based on the experimental study, a simplified bilinear model was used to establish the bond-slip model of FRP bars and coral aggregate seawater concrete by Abaqus finite element software. The effects of the diameter of FRP bar, bond length, coral aggregate seawater concrete strength and FRP bar type on bonding performance were studied.By comparing the theoretical value obtained by numerical simulation with the experimental value, it is found that the two are in good agreement. Therefore, the simplified bilinear model is applicable to analyze the interfacial bonding performance of FRP reinforced all coral aggregate seawater concrete structure.After studying the influence of various factors, it is found that increasing the interfacial bond length, the diameter of reinforcement and the strength of coral aggregate seawater concrete can improve the bond strength of the structure, but the large diameter of reinforcement is easy to cause the splitting failure of the specimen, and the enhancement effect of high strength concrete on the bond strength is not obvious. © 2023, The Editorial Board of Journal of Basic Science and Engineering. All right reserved.
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页码：210 / 223
页数：13
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