Using Externally Bonded CFRP to Repair a PCCP with Broken Wires under Combined Loads
Joint Authors
Fang, Hongyuan
Wang, Fuming
Zhai, Kejie
Fu, Bing
Hu, Benyue
Source
International Journal of Polymer Science
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-10-20
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Prestressed concrete cylinder pipe (PCCP) is widely used for long-distance water pipelines throughout the world.
However, prestressing wire breakage is the most common form of PCCP damage.
For some pipelines that cannot be shut down, a new technique for in-service PCCP repair by externally bonding the pipe with layers of carbon fiber reinforced polymer (CFRP) was proposed.
A set of three-dimensional finite element models of the repaired PCCP have been proposed and implemented in the ABAQUS software, which took into account the soil pressure, the weight of the PCCP, the weight of the water, and the hydrostatic pressure.
The stress–strain features of the PCCP repaired with CFRP of various thicknesses were analyzed.
The stress–strain features of different wire breakage rates for the repaired PCCP were also analyzed.
The results showed that the strains and stresses decreased at the springline if the PCCP was repaired with CFRP, which improved the operation of the PCCP.
It has been found that the wire breakage rates had a significant effect on the strains and stresses of each PCCP component, but CFRP failed to reach its potential tensile strength when other materials were broken.
American Psychological Association (APA)
Zhai, Kejie& Fang, Hongyuan& Fu, Bing& Wang, Fuming& Hu, Benyue. 2019. Using Externally Bonded CFRP to Repair a PCCP with Broken Wires under Combined Loads. International Journal of Polymer Science،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1168245
Modern Language Association (MLA)
Zhai, Kejie…[et al.]. Using Externally Bonded CFRP to Repair a PCCP with Broken Wires under Combined Loads. International Journal of Polymer Science No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1168245
American Medical Association (AMA)
Zhai, Kejie& Fang, Hongyuan& Fu, Bing& Wang, Fuming& Hu, Benyue. Using Externally Bonded CFRP to Repair a PCCP with Broken Wires under Combined Loads. International Journal of Polymer Science. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1168245
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1168245