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

计量
- 文章访问数: 0193
- HTML全文浏览量: 0
- PDF下载量: 0151
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

HTML全文

参考文献(12)

[1]	ANSI/AWWA C304—2014 Design of prestressed concrete cylinder pipe[S]. American National Standards Institute,American Water Works Association, 2014 .
[2]	SL702—2015 预应力钢筒混凝土管道技术规范[S]. 2015. (SL702—2015 Technical specifications of prestressed concrete cylinder[S]. 2015. (in Chinese))
[3]	ROSS C W.Tests of prestressed concrete pipe containing a steel cylinder[J]. Journal Proceedings, 1945, 42(9): 37-48.
[4]	MCCALL J T, VALENZIANO F P.Combined load tests on 108 inch prestressed concrete embedded cylinder pipe[C]// Proceedings of Symposia on Prestressed Concrete. Sidney, Australia, 1961.
[5]	ZARGHAMEE M S.Hydrostatic pressure testing of prestressed concrete cylinder pipe with broken wires[C]// Pipeline Engineering and Construction international conference, 2003.
[6]	TREMBLAY A W.Combined-load testing of prestressed concrete cylinder pipe[C]// Proceedings International Conference on Pipeline Design and Installation. ASCE, 2015.
[7]	胡少伟, 沈捷, 王东黎, 等. 超大口径预存裂缝的预应力钢筒混凝土管结构分析与试验研究[J]. 水利学报, 2010, 41(7): 876-882. (HU Shao-wei, SHEN Jie, WANG Dong-li, et al.Experiment and numerical analysis on super caliber prestressed concrete cylinder pipes with cracks[J]. Journal of Hydraulic Engineering, 2010, 41(7): 876-882. (in Chinese))
[8]	窦铁生, 程冰清, 胡赫, 等. 预应力钢筒混凝土管结构变形规律的原型试验研究Ⅰ:内压[J].水利学报, 2017, 48(12): 1438-1446. (DOU Tie-sheng, CHENG Qing-bing, HU He, et al.The prototype test study of prestressed concrete cylinder pipe structure deformation law: Ⅰ the internal pressure[J]. Journal of Hydraulic Engineering, 2017, 48(12): 1438-1446. (in Chinese))
[9]	窦铁生, 程冰清, 胡赫, 等. CFRP修复PCCP的内水压试验[J]. 混凝土与水泥制品, 2017(12): 35-40. (DOU Tie-sheng, CHENG Qing-bing, HU He, et al.Test of CFRP repair PCCP under internal water pressure[J]. China Concrete and Cement Products, 2017(12): 35-40. (in Chinese))
[10]	LEE D C, KARBHARI V M.Rehabilitation of large diameter prestressed cylinder concrete pipe (PCCP) with FRP composites-experimental investigation[J]. Advances in Structural Engineering, 2005, 8(1): 31-44.
[11]	LEE Y, LEE E T.Analysis of prestressed concrete cylinder pipes with fiber reinforced polymer[J]. Ksce Journal of Civil Engineering, 2015, 19(3): 682-688.
[12]	GB/T19685—2005 预应力钢筒混凝土管[S]. 2005. (GB/T19685—2005 Prestressed concrete cylinder pipe[S]. 2005. (in Chinese))

施引文献(6)

期刊类型引用(2)

1.	张小利，张四化，李明宇，刘涛，钱宇奔. 复合地基桩端位置变化对挡墙附加土压力的影响规律模型试验研究. 工程勘察. 2023(06): 7-12+29 . 百度学术
2.	刘华，刘志，张文龙，胡亚洲，刘人菩，谭茜元，谢楠，姜海波. 旋喷加固淤泥地层隧道荷载作用模式研究. 铁道标准设计. 2023(12): 143-149 . 百度学术