This seminar explains when externally bonded FRP is appropriate, compares fibres, laminates, fabrics and adhesives, walks through flexural, shear and confinement design to current ACI and fib guidance, and sets out the substrate preparation, testing and quality control that make a design work on site.
Learning objectives
- Explain when externally bonded FRP is an appropriate way to strengthen a concrete member and the limits set by the existing structure, fire and environment
- Compare carbon, glass and aramid fibres, pre-cured laminates and wet lay-up fabrics, and the role of the epoxy adhesive or saturant
- Describe the flexural, shear and confinement design approach in current ACI and fib guidance, including debonding, strain limits and the unstrengthened-capacity check
- Specify substrate preparation, pull-off testing, installation, protection and quality control for an FRP strengthening system
Modules0 of 5 done
1
When FRP strengthening fitsReasons to strengthen, the alternatives and the limits of the existing member · About 11 min · 10 min video
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2
FRP materials and adhesivesFibres, product forms, epoxy resins and long-term durability · About 11 min · 7 min video
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3
Flexural design principlesGuidance, strengthening limits, failure modes, debonding and fire · About 11 min · 7 min video
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4
Shear, confinement and detailingWrapping schemes, column confinement, anchorage and a worked example · About 11 min · 7 min video
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5
Installation and quality controlSubstrate preparation, site conditions, testing, inspection and protection · About 16 min · 8 min video
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Assessment10 questions · pass mark 80% · 2 attempts