英文论文


文献类型
Journal article (JA)
题名
Study on Bond-Slip Behavior between Seawater Sea-Sand Concrete and Carbon Fiber-Reinforced Polymer (CFRP) Bars with Different Surface Shapes
作者
Gao, Jing; Xu, Penghai; Fan, Lingyun; Terrasi, Giovanni Pietro
作者单位
[Gao, Jing; Xu, Penghai; Fan, Lingyun] Xiamen Univ, Dept Civil Engn, Daxue Rd 182, Xiamen 361005, Peoples R China. [Terrasi, Giovanni Pietro] Empa, Swiss Fed Labs Mat Sci & Technol, Mech Syst Engn Lab, Ueberlandstr 129, CH-8600 Dubendorf, Switzerland.
通讯作者地址
Xiamen Univ, Dept Civil Engn, Daxue Rd 182, Xiamen 361005, Peoples R China.
Email
gaojing@xmu.edu.cn; 25320211152338@stu.xmu.edu.cn; fly950920@163.com; giovanni.terrasi@empa.ch
ResearchID
ORCID
期刊名称
Polymers
出版社
MDPI
ISSN
出版信息
July-1 2022, 14 (13)
JCR
影响因子
ISBN
基金
Natural Science Foundation of China [U2005216]; Science and Technology Research and Development Plan of China Railway Group Limited [2020-Key-11]; Natural Science Foundation of Fujian [2020J01010]
会议名称
会议地点
会议开始日期
会议结束日期
关键词
Bond strength (materials); Carbon fiber reinforced plastics; Compressive strength; Geometry; Reinforced concrete; Seawater corrosion
摘要
The application of CFRP bar and seawater sea-sand concrete (SSSC) in construction can overcome the shortcomings in conventional reinforced concrete, such as corrosion induced by carbonation and chloride ingress. In this study, the bond-slip behavior between an SSSC cube and CFRP bar has been investigated, and different CFRP bar surface shapes have been considered. A total of 27 specimens (9 groups) were fabricated for a pull-out test, where three types of CFRP bar with different surface shapes were used: smooth regular bars, double-wrapped bars and ribbed bars. Bond strength, bond-slip curve, and failure mode have been presented and discussed. FE models have been constructed and validated by experimental results. The effect of concrete compressive strength and relative area of ribs on bond strength has been studied through numerical simulations. It is found that the bond strength increased with concrete compressive strength, and the ribbed bar had significantly higher bond strength than the smooth regular bar. Pull-out failure was observed when the cover-depth-to-bar-diameter ratio was no less than 4 and, otherwise, splitting failure occurred. In addition, a simple formula has been proposed to approximately evaluate the bond strength between an SSSC cube and CFRP bar and validated by experimental results, and analytical expressions for different bond-slip curves have also been developed.
一级学科
Polymer Science
WOS入藏号
WOS:000824031800001
EI收录号
20222812336037
DOI
10.3390/polym14132689
ESI
收录于
SCIE, EI

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