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Fatigue Life of Reinforced Concrete Beams under Bending Strengthened with Composite Materials
Cracow University f Technology, Poland. (Concrete Structures)ORCID iD: 0000-0001-6133-3624
2006 (English)In: Archives of Civil and Mechanical Engineering, ISSN 1644-9665, Vol. 6, no 4, p. 33-47Article in journal, Editorial material (Refereed) Published
Sustainable development
SDG 9: Build resilient infrastructure, promote inclusive and sustainable industrialization, and foster innovation
Abstract [en]

The paper focuses on the problem of the durability of bent RC beams strengthened with composite materials, subjected to cyclic loading. The theoretical model of determining fatigue life of the cross-section of the bent reinforced concrete beam strengthened with external, non-stressed CFRP strips is presented. The author's own proposal is to introduce the coefficient of the strip position effect on each individual bar and a way of taking into account the energy absorbed by the strengthening. The energy causes a decrease in the velocity of the crack propagation in the rebar, and consequently, an increase in its durability. The theoretical model was verified in the experiments carried out on two series of reinforced concrete beams with different steel and strengthening ratios. For each group of the beams, the value of fatigue load was matched to get similar stress in the tension bars.

Place, publisher, year, edition, pages
Springer, 2006. Vol. 6, no 4, p. 33-47
Keywords [en]
reinforced concrete, strengthening, FRP, fatigue life, tests, analitycal model
National Category
Building Technologies
Research subject
Technology (byts ev till Engineering), Civil engineering
Identifiers
URN: urn:nbn:se:lnu:diva-102585DOI: 10.1016/S1644-9665(12)60274-XOAI: oai:DiVA.org:lnu-102585DiVA, id: diva2:1548464
Available from: 2021-04-30 Created: 2021-04-30 Last updated: 2021-05-05Bibliographically approved

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Derkowski, Wit

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  • asciidoc
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