Low-Cost Fiber Rope Reinforced Polymer (FRRP) Confinement of Square Columns with Different Corner Radii
This research investigates the behavior of square concrete columns externally wrapped by low-cost and easily available fiber rope reinforced polymer (FRRP) composites. This study mainly aims to explore the axial stress-strain relationships of FRRP-confined square columns. Another objective is to ass...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-08-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/11/8/355 |
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| author | Qudeer Hussain Anat Ruangrassamee Somnuk Tangtermsirikul Panuwat Joyklad Anil C. Wijeyewickrema |
| author_facet | Qudeer Hussain Anat Ruangrassamee Somnuk Tangtermsirikul Panuwat Joyklad Anil C. Wijeyewickrema |
| author_sort | Qudeer Hussain |
| collection | DOAJ |
| description | This research investigates the behavior of square concrete columns externally wrapped by low-cost and easily available fiber rope reinforced polymer (FRRP) composites. This study mainly aims to explore the axial stress-strain relationships of FRRP-confined square columns. Another objective is to assess suitable predictive models for the ultimate strength and strain of FRRP-confined square columns. A total of 60 square concrete columns were cast, strengthened, and tested under compression. The parameters were the corner radii of square columns (0, 13, and 26 mm) and different materials of FRRP composites (polyester, hemp, and cotton FRRP composites). The strength and deformability of FRRP-confined specimens were observed to be higher than the unconfined specimens. It was observed that strength gains of FRRP-confined concrete columns and corner radii were directly proportional. The accuracy of ultimate strength and strain models developed for synthetic FRRP-confined square columns was assessed using the test results of this study, showing the need for the development of improved predictive models for FRRP-confined square columns. Newly developed unified models were found to be accurate in predicting the ultimate strength and strain of FRRP-confined columns. |
| first_indexed | 2024-03-10T08:57:48Z |
| format | Article |
| id | doaj.art-adf3c3122cb8481ebff1e304fe9a048e |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-10T08:57:48Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-adf3c3122cb8481ebff1e304fe9a048e2023-11-22T07:00:50ZengMDPI AGBuildings2075-53092021-08-0111835510.3390/buildings11080355Low-Cost Fiber Rope Reinforced Polymer (FRRP) Confinement of Square Columns with Different Corner RadiiQudeer Hussain0Anat Ruangrassamee1Somnuk Tangtermsirikul2Panuwat Joyklad3Anil C. Wijeyewickrema4Center of Excellence in Earthquake Engineering and Vibration, Department of Civil Engineering, Chulalongkorn University, Bangkok 10330, ThailandCenter of Excellence in Earthquake Engineering and Vibration, Department of Civil Engineering, Chulalongkorn University, Bangkok 10330, ThailandSchool of Civil Engineering and Technology, Sirindhorn International Institute of Technology, Thammasat University, Pathum Thani 12120, ThailandDepartment of Civil and Environmental Engineering, Srinakharinwirot University, Nakhon Nayok 26120, ThailandDepartment of Civil Engineering, Tokyo Institute of Technology, Tokyo 152-8552, JapanThis research investigates the behavior of square concrete columns externally wrapped by low-cost and easily available fiber rope reinforced polymer (FRRP) composites. This study mainly aims to explore the axial stress-strain relationships of FRRP-confined square columns. Another objective is to assess suitable predictive models for the ultimate strength and strain of FRRP-confined square columns. A total of 60 square concrete columns were cast, strengthened, and tested under compression. The parameters were the corner radii of square columns (0, 13, and 26 mm) and different materials of FRRP composites (polyester, hemp, and cotton FRRP composites). The strength and deformability of FRRP-confined specimens were observed to be higher than the unconfined specimens. It was observed that strength gains of FRRP-confined concrete columns and corner radii were directly proportional. The accuracy of ultimate strength and strain models developed for synthetic FRRP-confined square columns was assessed using the test results of this study, showing the need for the development of improved predictive models for FRRP-confined square columns. Newly developed unified models were found to be accurate in predicting the ultimate strength and strain of FRRP-confined columns.https://www.mdpi.com/2075-5309/11/8/355square concrete columnsconfinementfiber rope reinforced polymers (FRRP)ultimate strength modelultimate strain modelhemp fiber rope |
| spellingShingle | Qudeer Hussain Anat Ruangrassamee Somnuk Tangtermsirikul Panuwat Joyklad Anil C. Wijeyewickrema Low-Cost Fiber Rope Reinforced Polymer (FRRP) Confinement of Square Columns with Different Corner Radii Buildings square concrete columns confinement fiber rope reinforced polymers (FRRP) ultimate strength model ultimate strain model hemp fiber rope |
| title | Low-Cost Fiber Rope Reinforced Polymer (FRRP) Confinement of Square Columns with Different Corner Radii |
| title_full | Low-Cost Fiber Rope Reinforced Polymer (FRRP) Confinement of Square Columns with Different Corner Radii |
| title_fullStr | Low-Cost Fiber Rope Reinforced Polymer (FRRP) Confinement of Square Columns with Different Corner Radii |
| title_full_unstemmed | Low-Cost Fiber Rope Reinforced Polymer (FRRP) Confinement of Square Columns with Different Corner Radii |
| title_short | Low-Cost Fiber Rope Reinforced Polymer (FRRP) Confinement of Square Columns with Different Corner Radii |
| title_sort | low cost fiber rope reinforced polymer frrp confinement of square columns with different corner radii |
| topic | square concrete columns confinement fiber rope reinforced polymers (FRRP) ultimate strength model ultimate strain model hemp fiber rope |
| url | https://www.mdpi.com/2075-5309/11/8/355 |
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