断丝PCCP管道外贴CFRP修复足尺模型试验研究

翟科杰; 方宏远; 付兵; 王复明; 胡本月; 雷新海

doi:10.11779/CJGE2019S1040

断丝PCCP管道外贴CFRP修复足尺模型试验研究 English Version

翟科杰¹,
方宏远^2,4,5, ,,
付兵³,
王复明^{1, 2, 4, 5},
胡本月^{2, 4, 5},
雷新海⁶

1. 中山大学土木工程学院,广东广州 510275;
2. 郑州大学水利与环境学院,河南郑州 450001;
3. 广东工业大学土木与交通工程学院,广东广州 510006;
4. 重大基础设施检测修复技术国家地方联合工程实验室,河南郑州 450001;
5. 水利与交通基础设施安全防护河南省协同创新中心,河南郑州 450001;
6. 郑州水务建筑工程股份有限公司,河南郑州 450002

基金项目: 国家重点研发计划项目（2016YFC0802400）; 河南省重大科技专项项目（171100310100）; 河南省教育厅高校科技创新人才计划项目（19HASTIT043）; 郑州大学优秀青年人才科研基金项目（1621323001）

详细信息

作者简介:
翟科杰（1991—）,男,博士研究生,主要从事混凝土结构修复加固研究。E-mail:zhaikj@mail2.sysu.edu.cn。

通讯作者:
方宏远，E-mail：18337192244@163.com

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出版历程
- 收稿日期: 2019-04-29
- 发布日期: 2019-07-14

CFRP wrapping to retrofit a deteriorated prestressed cylinder concrete pipe: full-scale experiments

ZHAI Ke-jie¹,
FANG Hong-yuan^2,4,5, ,,
FU Bing³,
WANG Fu-ming^{1, 2, 4, 5},
HU Ben-yue^{2, 4, 5},
LEI Xin-hai⁶

1. School of Civil Engineering, Sun Yat-sen University, Guangzhou 510275, China;
2. College of Water Conservancy & Environmental Engineering, Zhengzhou University, Zhengzhou 450001, China;
3. School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China;
4. National Local Joint Engineering Laboratory of Major Infrastructure Testing and Rehabilitation Technology, Zhengzhou 450001, China;
5. Collaborative Innovation Center of Water Conservancy and Transportation Infrastructure Safety, Henan Province, Zhengzhou 450001, China;
6. Zhengzhou Water Construction Project Limited by Share Ltd, Zhengzhou 450002, China

摘要

摘要: 断丝是目前预应力钢筒混凝土管（Prestressed Concrete Cylinder Pipe,PCCP）最为常见的一种病害,如不及时加固,极易造成爆管等事故。针对长距离PCCP输水管道难以停水维修问题,提出了一种外贴碳纤维增强复合材料（Carbon Fiber Reinforced Polymer,CFRP）的维修方法。为了探究外贴CFRP修复断丝PCCP效果,采用一根内径2.8 m 的PCCP管道进行了内水压足尺试验。试验对修复前后PCCP结构应变响应进行了对比分析,结果表明：由于CFRP“箍束”作用,修复后断丝区中间截面材料应变减小,利于PCCP承压。
- 碳纤维增强复合材料（CFRP） /
- 预应力钢筒混凝土管（PCCP） /
- 外贴修复 /
- 足尺试验
Abstract: The prestressed concrete cylinder pipes (PCCPs) are often deteriorated due to rupture of prestressed steel wires. Such deteriorated PCCPs need to be retrofitted timely and effectively, otherwise they could suffer from explosion. An innovative retrofitting technique is therefore proposed, which is carbon fiber reinforced polymer (CFRP) wrapping outside the deteriorated PCCPs, and the retrofitting technique is especially suitable for the cases that shutting off water is impossible. In order to evaluate the effectiveness of the newly-proposed retrofitting technique for PCCPs, a full-scale PCCP of 2.8 m in inner diameter is tested under internal water pressure. The strains of PCCP structures are compared before and after the repair. It is found that the strains near the ruptured steel wires significantly decrease due to the presence of CFRP, which improves the operation of the PCCPs.
- carbon fiber-reinforced polymer /
- prestressed steel cylinder concrete pipe /
- retrofitting /
- full-scale experiment

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参考文献(12)

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施引文献(14)

期刊类型引用(8)

1.	张霄杰，吴嘉瑜，陈建飞. 内压作用下碳纤维增强复合材料内衬加固预应力钢筒混凝土管承载力分析. 工业建筑. 2024(06): 61-71 . 百度学术
2.	张海鹏，王建慧，邵青，张立. 基于宽度回声状态网络的PCCP断丝智能预测. 计算机仿真. 2024(11): 529-533+538 . 百度学术
3.	王浩，杨宇轩，曾旭明，朱盛延，王子南. 纤维增强材料在城市给排水管道修复中的应用. 科学技术与工程. 2023(26): 11071-11080 . 百度学术
4.	窦铁生，董晓农，章煊，李炎隆，宁靖华，黎康平. PCCP断丝破坏规律Ⅰ:原型试验研究. 水利学报. 2023(12): 1430-1439 . 百度学术
5.	鲁文妍，刘海祥，柯敏勇，许珉凡，吕康伟，洪欣. PCCP管内环向预应力加固验证试验研究. 水利水运工程学报. 2022(03): 122-126 . 百度学术
6.	吕康伟，鲁文妍，田霞，刘海祥，柯敏勇. PCCP管内环向预应力加载装置内衬分析. 粉煤灰综合利用. 2021(03): 108-112 . 百度学术
7.	翟科杰，方宏远，郭成超，倪芃芃，付兵，李斌. 预应力CFRP加固断丝PCCP的试验与仿真研究. 水利学报. 2021(06): 739-749 . 百度学术
8.	窦铁生，程冰清，夏世法，赵丽君，董晓农. CFRP内衬法加固预应力钢筒混凝土管的内水压力试验研究. 混凝土与水泥制品. 2021(11): 44-48 . 百度学术