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June 4, 2026Journal of Composites for Construction

Rapid Strengthening of Short-Span Reinforced Concrete T-Beams with Unbonded Carbon Fiber–Reinforced Polymer Straps

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Authors

RPRenée-Anne PaquetMDMarc-André DagenaisGWGordon Wight

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Overview

Randomized trial evaluates rapid strengthening of short-span concrete T-beams using CFRP straps, suggesting practical applications for urgent repairs.

Key Points

  • This study aims to evaluate the effectiveness of unbonded CFRP straps for rapidly strengthening short-span reinforced concrete bridges.
  • Conducted an experimental program on six 6-m-long T-beams, including two control and four strengthened beams.
  • Implemented single and double layers of CFRP straps with a mechanical anchorage system.
  • Developed a numerical model to assess the load-deflection response of strengthened beams.
  • Strength increases of up to 22% for beams strengthened with a two-layer CFRP configuration.
  • Reduced deflections at high load levels and delayed crack formation observed.
  • Post-test analysis indicated significant additional tensile forces in CFRP straps during loading.

Cite This Study

Paquet et al. (2026) studied this question.

synapsesocial.com/papers/6a211611d499ed480b16f2a5https://doi.org/10.1061/jccof2.cceng-5396
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Shear–Flexure Integrated Strengthening of RC Beams with Near-Surface Mounted Carbon Fiber-Reinforced Polymer (CFRP) Ropes and Geopolymer Overlays2026 · 1 citations
  2. 2Experimental and analytical study on enhancing flexural strength of <scp>RC</scp> beams using post‐ tensioned heavy‐duty metal straps wrapped around anchored steel plates2024
  3. 3Flexural strengthening of reinforced concrete beams with CFRP laminates and spike anchors2024 · 33 citations
  4. 4Strengthening Reinforced Concrete Beams through Integration of CFRP Bars, Mechanical Anchorage System, and Concrete Jacketing2024 · 3 citations
  5. 5Novel approach for strengthening T-beams deficient in shear with near-surface mounted CFRP ropes in form of closed stirrups2024 · 20 citations