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Reinforced concrete...
Reinforced concrete T-beams externally prestressed with unbonded carbon fiber-reinforced polymer tendons
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- Bennitz, Anders (author)
- Luleå tekniska universitet,Byggkonstruktion och -produktion
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- Schmidt, Jacob W. (author)
- Technical University of Denmark, Division of Structural Engineering
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- Nilimaa, Jonny (author)
- Luleå tekniska universitet,Byggkonstruktion och -produktion
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- Täljsten, Björn (author)
- Luleå tekniska universitet,Byggkonstruktion och -produktion
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- Goltermann, Per (author)
- Technical University of Denmark, Division of Structural Engineering
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- Ravn, Dorthe L. (author)
- COWI A/S
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(creator_code:org_t)
- American Concrete Institute, 2012
- 2012
- English.
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In: ACI Structural Journal. - : American Concrete Institute. - 0889-3241 .- 1944-7361. ; 109:4, s. 521-530
- Related links:
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http://www.concrete....
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- This study describes a series of experiments examining the behavior of seven beams prestressed with unbonded external carbon fiber-reinforced polymer (CFRP) tendons anchored using a newly developed anchorage and post-tensioning system. The effects of varying the initial tendon depth, prestressing force, and the presence of a deviator were investigated. The results were compared to those observed with analogous beams prestressed with steel tendons, common beam theory, and predictions made using an analytical model adapted from the literature. It was found that steel and CFRP tendons had very similar effects on the structural behavior of the strengthened beams; the minor differences that were observed are attributed to the difference between the modulus of elasticity of the CFRP and the steel used in the tests. The models predicted the beams’ load-bearing behavior accurately but were less effective at predicting the stress experienced by the tendons.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Infrastrukturteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Infrastructure Engineering (hsv//eng)
Keyword
- Structural Engineering
- Konstruktionsteknik
Publication and Content Type
- ref (subject category)
- art (subject category)
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