Concrete cover separation of reinforced concrete beams strengthened with near-surface mounted method: Mechanics based design approach
The primary mode of premature failure for near-surface mounted strengthened beams is the concrete cover separation. Due to its complexity, most of the prediction methods for concrete cover separation tend to be empirical based, which can limit their usage to specific near-surface mounted strengtheni...
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| Format: | Article |
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SAGE Publications
2019
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| _version_ | 1796961825720369152 |
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| author | Shukri, Ahmad Azim Ibrahim, Zainah Hashim, Huzaifa |
| author_facet | Shukri, Ahmad Azim Ibrahim, Zainah Hashim, Huzaifa |
| author_sort | Shukri, Ahmad Azim |
| collection | UM |
| description | The primary mode of premature failure for near-surface mounted strengthened beams is the concrete cover separation. Due to its complexity, most of the prediction methods for concrete cover separation tend to be empirical based, which can limit their usage to specific near-surface mounted strengthening configurations. In response to that, this article presents a mechanics-based design which uses the moment-rotation approach and the global energy balance approach which is less reliant on empirical formulations, as the mechanics of reinforced concrete beam such as tension stiffening and propagation of concrete cover separation debonding crack are directly simulated rather than empirically derived. The proposed design procedure was validated against published experimental results of reinforced concrete beams strengthened with near-surface mounted carbon fibre–reinforced polymer bars, near-surface mounted carbon fibre–reinforced polymer strips or side-near-surface mounted carbon fibre–reinforced polymer bars and show good accuracy. As it is less reliant on empirical formulations, the proposed design procedure should be applicable to various near-surface mounted reinforcement configurations and materials. © The Author(s) 2019. |
| first_indexed | 2024-03-06T05:59:54Z |
| format | Article |
| id | um.eprints-23451 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:59:54Z |
| publishDate | 2019 |
| publisher | SAGE Publications |
| record_format | dspace |
| spelling | um.eprints-234512020-01-16T02:28:51Z http://eprints.um.edu.my/23451/ Concrete cover separation of reinforced concrete beams strengthened with near-surface mounted method: Mechanics based design approach Shukri, Ahmad Azim Ibrahim, Zainah Hashim, Huzaifa TA Engineering (General). Civil engineering (General) The primary mode of premature failure for near-surface mounted strengthened beams is the concrete cover separation. Due to its complexity, most of the prediction methods for concrete cover separation tend to be empirical based, which can limit their usage to specific near-surface mounted strengthening configurations. In response to that, this article presents a mechanics-based design which uses the moment-rotation approach and the global energy balance approach which is less reliant on empirical formulations, as the mechanics of reinforced concrete beam such as tension stiffening and propagation of concrete cover separation debonding crack are directly simulated rather than empirically derived. The proposed design procedure was validated against published experimental results of reinforced concrete beams strengthened with near-surface mounted carbon fibre–reinforced polymer bars, near-surface mounted carbon fibre–reinforced polymer strips or side-near-surface mounted carbon fibre–reinforced polymer bars and show good accuracy. As it is less reliant on empirical formulations, the proposed design procedure should be applicable to various near-surface mounted reinforcement configurations and materials. © The Author(s) 2019. SAGE Publications 2019 Article PeerReviewed Shukri, Ahmad Azim and Ibrahim, Zainah and Hashim, Huzaifa (2019) Concrete cover separation of reinforced concrete beams strengthened with near-surface mounted method: Mechanics based design approach. Advances in Structural Engineering, 22 (7). pp. 1739-1754. ISSN 1369-4332, DOI https://doi.org/10.1177/1369433218824922 <https://doi.org/10.1177/1369433218824922>. https://doi.org/10.1177/1369433218824922 doi:10.1177/1369433218824922 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Shukri, Ahmad Azim Ibrahim, Zainah Hashim, Huzaifa Concrete cover separation of reinforced concrete beams strengthened with near-surface mounted method: Mechanics based design approach |
| title | Concrete cover separation of reinforced concrete beams strengthened with near-surface mounted method: Mechanics based design approach |
| title_full | Concrete cover separation of reinforced concrete beams strengthened with near-surface mounted method: Mechanics based design approach |
| title_fullStr | Concrete cover separation of reinforced concrete beams strengthened with near-surface mounted method: Mechanics based design approach |
| title_full_unstemmed | Concrete cover separation of reinforced concrete beams strengthened with near-surface mounted method: Mechanics based design approach |
| title_short | Concrete cover separation of reinforced concrete beams strengthened with near-surface mounted method: Mechanics based design approach |
| title_sort | concrete cover separation of reinforced concrete beams strengthened with near surface mounted method mechanics based design approach |
| topic | TA Engineering (General). Civil engineering (General) |
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