英文论文
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文献类型
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Journal article (JA)
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题名
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Study on Bond-Slip Behavior between Seawater Sea-Sand Concrete and Carbon Fiber-Reinforced Polymer (CFRP) Bars with Different Surface Shapes
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作者
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Gao, Jing; Xu, Penghai; Fan, Lingyun; Terrasi, Giovanni Pietro
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作者单位
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[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.
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通讯作者地址
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Xiamen Univ, Dept Civil Engn, Daxue Rd 182, Xiamen 361005, Peoples R China.
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Email
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gaojing@xmu.edu.cn; 25320211152338@stu.xmu.edu.cn; fly950920@163.com; giovanni.terrasi@empa.ch
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ResearchID
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ORCID
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期刊名称
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Polymers
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出版社
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MDPI
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ISSN
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出版信息
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July-1 2022, 14 (13)
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JCR
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影响因子
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ISBN
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基金
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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]
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会议名称
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会议地点
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会议开始日期
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会议结束日期
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关键词
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Bond strength (materials); Carbon fiber reinforced plastics; Compressive strength; Geometry; Reinforced concrete; Seawater corrosion
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摘要
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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.
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一级学科
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Polymer Science
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WOS入藏号
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WOS:000824031800001
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EI收录号
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20222812336037
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DOI
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10.3390/polym14132689
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ESI
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收录于
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SCIE, EI
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