Bond-Slip Models for FPR-Concrete Interfaces Subjected to Moisture Conditions
Environmental related durability issues have been of great concerns in the structures strengthened with the fiber reinforced polymers (FRPs). In marine environment, moisture is one of the dominant factors that adversely affect the material properties and the bond interfaces. Several short-term and l...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/2017/4031565 |
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| _version_ | 1832556481016233984 |
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| author | Justin Shrestha Dawei Zhang Tamon Ueda |
| author_facet | Justin Shrestha Dawei Zhang Tamon Ueda |
| author_sort | Justin Shrestha |
| collection | DOAJ |
| description | Environmental related durability issues have been of great concerns in the structures strengthened with the fiber reinforced polymers (FRPs). In marine environment, moisture is one of the dominant factors that adversely affect the material properties and the bond interfaces. Several short-term and long-term laboratory experimental investigations have been conducted to study such behaviors but, still, there are insufficient constitutive bond models which could incorporate moisture exposure conditions. This paper proposed a very simple approach in determining the nonlinear bond-slip models for the FRP-concrete interface considering the effect of moisture conditions. The proposed models are based on the strain results of the experimental investigation conducted by the authors using 6 different commercial FRP systems exposed to the moisture conditions for the maximum period of 18 months. The exposure effect in the moisture conditions seems to have great dependency on the FRP system. Based on the contrasting differences in the results under moisture conditions, separate bond-slip models have been proposed for the wet-layup FRP and prefabricated FRP systems. As for the verification of the proposed model under moisture conditions, predicted pull-out load was compared with the experimental pull-out load. The results showed good agreement for all the FRP systems under investigation. |
| format | Article |
| id | doaj-art-8ade602f165a4498bd6ec8c81e14e5ba |
| institution | Kabale University |
| issn | 1687-9422 1687-9430 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-8ade602f165a4498bd6ec8c81e14e5ba2025-02-03T05:45:15ZengWileyInternational Journal of Polymer Science1687-94221687-94302017-01-01201710.1155/2017/40315654031565Bond-Slip Models for FPR-Concrete Interfaces Subjected to Moisture ConditionsJustin Shrestha0Dawei Zhang1Tamon Ueda2Engineering Development Department, Takenaka Civil Engineering & Construction Co., Ltd., Shinsuna, Koto-ku, Tokyo 136-8570, JapanDepartment of Civil Engineering, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, ChinaDivision of Engineering and Policy for Sustainable Environment, Faculty of Engineering, Hokkaido University, Kita 13 Jo Nishi 8 Chome Kita-ku, Sapporo 060-8628, JapanEnvironmental related durability issues have been of great concerns in the structures strengthened with the fiber reinforced polymers (FRPs). In marine environment, moisture is one of the dominant factors that adversely affect the material properties and the bond interfaces. Several short-term and long-term laboratory experimental investigations have been conducted to study such behaviors but, still, there are insufficient constitutive bond models which could incorporate moisture exposure conditions. This paper proposed a very simple approach in determining the nonlinear bond-slip models for the FRP-concrete interface considering the effect of moisture conditions. The proposed models are based on the strain results of the experimental investigation conducted by the authors using 6 different commercial FRP systems exposed to the moisture conditions for the maximum period of 18 months. The exposure effect in the moisture conditions seems to have great dependency on the FRP system. Based on the contrasting differences in the results under moisture conditions, separate bond-slip models have been proposed for the wet-layup FRP and prefabricated FRP systems. As for the verification of the proposed model under moisture conditions, predicted pull-out load was compared with the experimental pull-out load. The results showed good agreement for all the FRP systems under investigation.http://dx.doi.org/10.1155/2017/4031565 |
| spellingShingle | Justin Shrestha Dawei Zhang Tamon Ueda Bond-Slip Models for FPR-Concrete Interfaces Subjected to Moisture Conditions International Journal of Polymer Science |
| title | Bond-Slip Models for FPR-Concrete Interfaces Subjected to Moisture Conditions |
| title_full | Bond-Slip Models for FPR-Concrete Interfaces Subjected to Moisture Conditions |
| title_fullStr | Bond-Slip Models for FPR-Concrete Interfaces Subjected to Moisture Conditions |
| title_full_unstemmed | Bond-Slip Models for FPR-Concrete Interfaces Subjected to Moisture Conditions |
| title_short | Bond-Slip Models for FPR-Concrete Interfaces Subjected to Moisture Conditions |
| title_sort | bond slip models for fpr concrete interfaces subjected to moisture conditions |
| url | http://dx.doi.org/10.1155/2017/4031565 |
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