Circumferential Expansion Property of Composite Wrapping System for Main Cable Protection of Suspension Bridge
A composite wrapping system for main cable protection of suspension bridges was designed by using prepreg fiber-reinforced composites and nitrile rubber. The circumferential expansion performance of the system was tested, and the curves of circumferential bearing capacity and radial displacement of...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Polymer Technology |
| Online Access: | http://dx.doi.org/10.1155/2020/8638076 |
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| author | Pengfei Cao Hai Fang Weiqing Liu Yong Zhuang Yuan Fang Chenglin Li |
| author_facet | Pengfei Cao Hai Fang Weiqing Liu Yong Zhuang Yuan Fang Chenglin Li |
| author_sort | Pengfei Cao |
| collection | DOAJ |
| description | A composite wrapping system for main cable protection of suspension bridges was designed by using prepreg fiber-reinforced composites and nitrile rubber. The circumferential expansion performance of the system was tested, and the curves of circumferential bearing capacity and radial displacement of the components were obtained. Failure modes of each group of components were compared and analyzed. The results show that most of the components are vertically fractured at the lap transition. The increase of the number of prepreg layers contributed the most to the circumferential bearing capacity of components, with a growth rate of 65.31%~109.01%. The increase of rubber belt layers had the most significant effect on the radial displacement of the components, with a growth rate of 7.06%~23.5%. In the initial stage of the test, the strain of each part of the component was smaller due to the compaction by the loading device, and the strain value of the component was generally linearly increased during the loading process, during which the strain of the overlap was the smallest. The calculated cross-sectional temperature deformation of the main cable is in good agreement with the experimental data. The application of the rubber belt increases the deformation of the main cable; therefore, the protection system for the main cable could have more deformation redundancy and delay the arrival of the ultimate strain of the outer prepreg wrap. |
| format | Article |
| id | doaj-art-02d24e64e99944808d6fcf64338daae9 |
| institution | Kabale University |
| issn | 0730-6679 1098-2329 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Polymer Technology |
| spelling | doaj-art-02d24e64e99944808d6fcf64338daae92025-02-03T01:04:41ZengWileyAdvances in Polymer Technology0730-66791098-23292020-01-01202010.1155/2020/86380768638076Circumferential Expansion Property of Composite Wrapping System for Main Cable Protection of Suspension BridgePengfei Cao0Hai Fang1Weiqing Liu2Yong Zhuang3Yuan Fang4Chenglin Li5College of Civil Engineering, Nanjing Tech University, Nanjing 211816, ChinaCollege of Civil Engineering, Nanjing Tech University, Nanjing 211816, ChinaCollege of Civil Engineering, Nanjing Tech University, Nanjing 211816, ChinaChina Railway Major Bridge Reconnaissance & Design Institute Co. Ltd., Wuhan 430050, ChinaCollege of Civil Engineering, Nanjing Tech University, Nanjing 211816, ChinaCollege of Civil Engineering, Nanjing Tech University, Nanjing 211816, ChinaA composite wrapping system for main cable protection of suspension bridges was designed by using prepreg fiber-reinforced composites and nitrile rubber. The circumferential expansion performance of the system was tested, and the curves of circumferential bearing capacity and radial displacement of the components were obtained. Failure modes of each group of components were compared and analyzed. The results show that most of the components are vertically fractured at the lap transition. The increase of the number of prepreg layers contributed the most to the circumferential bearing capacity of components, with a growth rate of 65.31%~109.01%. The increase of rubber belt layers had the most significant effect on the radial displacement of the components, with a growth rate of 7.06%~23.5%. In the initial stage of the test, the strain of each part of the component was smaller due to the compaction by the loading device, and the strain value of the component was generally linearly increased during the loading process, during which the strain of the overlap was the smallest. The calculated cross-sectional temperature deformation of the main cable is in good agreement with the experimental data. The application of the rubber belt increases the deformation of the main cable; therefore, the protection system for the main cable could have more deformation redundancy and delay the arrival of the ultimate strain of the outer prepreg wrap.http://dx.doi.org/10.1155/2020/8638076 |
| spellingShingle | Pengfei Cao Hai Fang Weiqing Liu Yong Zhuang Yuan Fang Chenglin Li Circumferential Expansion Property of Composite Wrapping System for Main Cable Protection of Suspension Bridge Advances in Polymer Technology |
| title | Circumferential Expansion Property of Composite Wrapping System for Main Cable Protection of Suspension Bridge |
| title_full | Circumferential Expansion Property of Composite Wrapping System for Main Cable Protection of Suspension Bridge |
| title_fullStr | Circumferential Expansion Property of Composite Wrapping System for Main Cable Protection of Suspension Bridge |
| title_full_unstemmed | Circumferential Expansion Property of Composite Wrapping System for Main Cable Protection of Suspension Bridge |
| title_short | Circumferential Expansion Property of Composite Wrapping System for Main Cable Protection of Suspension Bridge |
| title_sort | circumferential expansion property of composite wrapping system for main cable protection of suspension bridge |
| url | http://dx.doi.org/10.1155/2020/8638076 |
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