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Experimental investigation of CFRP-strengthened steel beams with web openings
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Altaee, Mohammed J., Cunningham, Lee S. and Gillie, Martin (2017) Experimental investigation of CFRP-strengthened steel beams with web openings. Journal of Constructional Steel Research, 138 . pp. 750-760. doi:10.1016/j.jcsr.2017.08.023
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WRAP-experimental-investigation-CFRP-strengthened-steel beams-Gillie-2017.pdf - Accepted Version - Requires a PDF viewer. Available under License Creative Commons Attribution Non-commercial No Derivatives 4.0. Download (1518Kb) | Preview |
Official URL: http://dx.doi.org/10.1016/j.jcsr.2017.08.023
Abstract
The introduction of web openings in existing steel floor beams is a common occurrence in practice. Such modifications are often necessary to accommodate additional services driven by a change of building use, thus extending the service life of the structure. Depending on their size and location, openings in the web can present a major challenge to the strength and stiffness of the beam. Strengthening around an opening is often necessary to maintain the required performance of the floor beam, traditionally this is affected via application of additional steel plate, either bolted or welded. This paper focusses on the novel application of carbon fibre reinforced polymer (CFRP) to the problem of strengthening web openings, taking advantage of the material's ease of handling, superior strength-to-weight ratio and corrosion resistance. An experimental study involving 4 full scale universal beams was conducted in order to investigate the ability of CFRP to recover the strength and stiffness of beams following the introduction of web openings. All the specimens were tested under 6-point bending in the experiments. For further comparison, the equivalent test series without the addition of strengthening was modelled numerically via finite element analysis.. The effectiveness of the strengthening technique was demonstrated with increases in the load carrying capacity over the un-altered beam of between 5 and 20% being achieved.
| Item Type: | Journal Article | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Subjects: | T Technology > TH Building construction | ||||||||
| Divisions: | Faculty of Science > Engineering | ||||||||
| Library of Congress Subject Headings (LCSH): | Building, Iron and steel , Steelwork, Carbon fiber-reinforced plastics | ||||||||
| Journal or Publication Title: | Journal of Constructional Steel Research | ||||||||
| Publisher: | Elsevier Ltd. | ||||||||
| ISSN: | 0143-974X | ||||||||
| Official Date: | November 2017 | ||||||||
| Dates: |
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| Date of first compliant deposit: | 24 October 2017 | ||||||||
| Volume: | 138 | ||||||||
| Page Range: | pp. 750-760 | ||||||||
| DOI: | 10.1016/j.jcsr.2017.08.023 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
| Funder: | Iraq. Wizārat al-Taʿlīm al-ʿĀlī wa-al-Baḥth al-ʿIlmī, Jāmiʻat Bābil |
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