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Strengthening of pre-damaged HSC columns using post-tensioned steel straps
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Ma, Chau Kun, Garcia, Reyes, Yung, Sofrie Chin Siew, Awang, Abdullah Zawawi, Omar, Wahid and Pilakoutas, Kypros (2019) Strengthening of pre-damaged HSC columns using post-tensioned steel straps. Proceedings of the Institution of Civil Engineers-Structures and Buildings, 172 (10). pp. 703-711. doi:10.1680/jstbu.18.00031 ISSN 0965-0911.
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WRAP-strengthening-pre-damaged-HSC-columns-post-tensioned-steel-straps-Garcia-2019.pdf - Accepted Version - Requires a PDF viewer. Download (1332Kb) | Preview |
Official URL: https://doi.org/10.1680/jstbu.18.00031
Abstract
The effectiveness of an innovative post-tensioned steel strapping strengthening solution for enhancing the behaviour of pre-damaged plain concrete cylinders was investigated. To achieve this, 24 cylinders of diameter 100 mm and height 200 mm were subjected to axial compression; 18 of these specimens were initially subjected to compressive load in unconfined conditions to produce three different damage levels. These pre-damaged specimens were then repaired and strengthened using different strap spacings and number of confining layers of straps. The results showed that the post-tensioned steel straps were extremely effective at enhancing the strength of the pre-damaged specimens, by up to 313%. The strapping also increased the axial deformability of the pre-damaged cylinders up to values of 2·64–2·95%. However, the effectiveness of the repair solution varied with the pre-damage level. The results of this work should contribute towards the development of more rapid and effective strengthening solutions for damaged reinforced concrete structures.
| Item Type: | Journal Article | ||||||||
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| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TH Building construction |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
| Library of Congress Subject Headings (LCSH): | Columns, Concrete, Earthquake engineering, Structural engineering, Earthquake resistant design | ||||||||
| Journal or Publication Title: | Proceedings of the Institution of Civil Engineers-Structures and Buildings | ||||||||
| Publisher: | Institution of Civil Engineers UK | ||||||||
| ISSN: | 0965-0911 | ||||||||
| Official Date: | October 2019 | ||||||||
| Dates: |
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| Volume: | 172 | ||||||||
| Number: | 10 | ||||||||
| Page Range: | pp. 703-711 | ||||||||
| DOI: | 10.1680/jstbu.18.00031 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
| Copyright Holders: | Institution of Civil Engineers | ||||||||
| Date of first compliant deposit: | 12 March 2019 | ||||||||
| Date of first compliant Open Access: | 18 January 2020 | ||||||||
| RIOXX Funder/Project Grant: |
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