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预应力碳纤维增强复合材料加固钢梁的耐久性能研究综述

邓军 李俊辉 郭栋

邓军, 李俊辉, 郭栋. 预应力碳纤维增强复合材料加固钢梁的耐久性能研究综述[J]. 工业建筑, 2024, 54(6): 81-90. doi: 10.3724/j.gyjzG24042801
引用本文: 邓军, 李俊辉, 郭栋. 预应力碳纤维增强复合材料加固钢梁的耐久性能研究综述[J]. 工业建筑, 2024, 54(6): 81-90. doi: 10.3724/j.gyjzG24042801
DENG Jun, LI Junhui, GUO Dong. A Review of Durability Research of Notched Steel Beams Reinfoned with Prestressed CFRP[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(6): 81-90. doi: 10.3724/j.gyjzG24042801
Citation: DENG Jun, LI Junhui, GUO Dong. A Review of Durability Research of Notched Steel Beams Reinfoned with Prestressed CFRP[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(6): 81-90. doi: 10.3724/j.gyjzG24042801

预应力碳纤维增强复合材料加固钢梁的耐久性能研究综述

doi: 10.3724/j.gyjzG24042801
基金项目: 

广东省基础与应用基础研究基金项目(2023A1515110542,2023A1515110842,2022A1515012076)

广东省普通高校创新团队项目(21KCXTD030)。

国家自然科学基金(52178278,51778151)

详细信息
    作者简介:

    邓军,博士,教授,博士生导师,主要从事土木工程新材料、结构检测评定和加固、桥梁与隧道施工监控的研究,dengjun@gzhu.edu.cn。

    通讯作者:

    郭栋,博士,博士后,主要从事CFRP加固钢结构的研究,dong.gzhu@gzhu.edu.cn。

A Review of Durability Research of Notched Steel Beams Reinfoned with Prestressed CFRP

  • 摘要: 疲劳损伤是钢桥最常见病害之一,预应力碳纤维增强复合材料(CFRP)能有效抑制裂纹扩展,延长结构服役寿命。预应力CFRP加固钢梁中,CFRP与钢界面作为主要的传力路径,保证了加固后结构的力学和耐久性能。在疲劳和湿热环境作用下,CFRP与钢界面的黏结性能发生劣化,导致加固后结构的力学性能退化。基于已有研究,总结了不同预应力加固系统设计下,钢梁的静载和疲劳性能的测试结果,以及环境因素对结构性能的影响机理。同时整理了预应力CFRP加固受损钢梁的界面主应力和黏结界面的能量释放率公式;并提出疲劳荷载和湿热环境作用下加固钢梁的承载力折减系数和寿命预测方法,以及考虑界面耐久性的结构加固设计思路。
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  • 收稿日期:  2024-04-28
  • 网络出版日期:  2024-06-24

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