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Experimental and numerical investigation on low-strength RC beams strengthened with side or bottom near surface mounted FRP rods
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Imjai, Thanongsak, Setkit, Monthian, Figueiredo, Fabio P., Garcia, Reyes, Sae-Long, Worathep and Limkatanyu, Suchart (2022) Experimental and numerical investigation on low-strength RC beams strengthened with side or bottom near surface mounted FRP rods. Structure and Infrastructure Engineering . doi:10.1080/15732479.2022.2045613 ISSN 1573-2479. (In Press)
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WRAP-experimental-numerical-investigation-low-strength-RC-beams-strengthened-side-bottom-near-surface-mounted-FRP-rods-Garcia-2022.pdf - Accepted Version - Requires a PDF viewer. Download (3314Kb) | Preview |
Official URL: http://dx.doi.org/10.1080/15732479.2022.2045613
Abstract
This article examines experimentally and numerically the flexural performance of low-strength reinforced concrete (RC) beams strengthened using near-surface mounted (NSM) carbon fibre reinforced polymer (CFRP) rods. Five RC rectangular beams were tested in four-point bending until failure. Four of these beams were strengthened using Bottom NSM (BNSM) or Side NSM (SNSM) rods. The results are discussed in terms of observed damage, load capacity, and midspan deflection. It is shown that the SNSM strengthening solution enhanced the cracking load of the beams by up to 19%. Similarly, the yield and ultimate load-carrying capacities of the strengthened beams increased by up to 31% and 64%, respectively. It is also shown that moment-curvature and FE approaches predict well the deflections of the strengthened RC beams within 20% and 10% of accuracy at failure. The results from nonlinear Finite Element (FE) analyses showed a better agreement with the experimental results up to failure (within a 10% of accuracy). For the beams presented in this study, the crack widths calculated by Eurocode 2 match reasonably well the measured values.
| Item Type: | Journal Article | |||||||||||||||
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| Subjects: | Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General) T Technology > TS Manufactures |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | |||||||||||||||
| Library of Congress Subject Headings (LCSH): | Maintainability (Engineering), Finite element method, Concrete beams -- Testing, Reinforced concrete, Polymers | |||||||||||||||
| Journal or Publication Title: | Structure and Infrastructure Engineering | |||||||||||||||
| Publisher: | Routledge | |||||||||||||||
| ISSN: | 1573-2479 | |||||||||||||||
| Official Date: | 26 February 2022 | |||||||||||||||
| Dates: |
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| DOI: | 10.1080/15732479.2022.2045613 | |||||||||||||||
| Status: | Peer Reviewed | |||||||||||||||
| Publication Status: | In Press | |||||||||||||||
| Reuse Statement (publisher, data, author rights): | This is an Accepted Manuscript of an article published by Taylor & Francis in Structure and Infrastructure Engineering on 07/03/2022, available online: http://dx.doi.org/10.1080/15732479.2022.2045613 | |||||||||||||||
| Access rights to Published version: | Restricted or Subscription Access | |||||||||||||||
| Date of first compliant deposit: | 7 March 2022 | |||||||||||||||
| Date of first compliant Open Access: | 26 February 2023 | |||||||||||||||
| RIOXX Funder/Project Grant: |
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