2 · FRP Structural Strengthening
FRP Structural Strengthening for Concrete Elements
Composite systems for strengthening structural elements based on adequate evaluation and technical design.
Illustrative visual. Not a specific project record unless stated otherwise.
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When FRP is relevant
FRP may be discussed when beams, columns, slabs, or selected elements require technically designed rehabilitation or strengthening.
- A capacity-improvement need has been identified by technical parties
- Concrete elements require rehabilitation based on adequate evaluation
- Selected elements require localized strengthening
- A composite system must be executed according to an approved design
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A design-led system
Carbon or glass fibers are applied with resin, but the configuration must not be determined from visual inspection alone.
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System options
CFRP, GFRP, wrapping of selected elements, and beam or slab lamination are used according to approved design.
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Carbon Fiber Reinforcement / CFRP
What it is
A carbon-fiber and resin system for elements defined by the design.
When it may be relevant
It may form part of strengthening when evaluation and design direct its use.
Condition to confirm
Fiber type, orientation, layers, and details are not prescribed by this page.
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Glass Fiber Reinforcement / GFRP
What it is
A glass-fiber and resin system for selected applications.
When it may be relevant
It may be considered when suited to the evaluated objective and environment.
Condition to confirm
Selection follows authorized design input.
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Selected-Element Wrapping
What it is
Wrapping for columns or selected elements according to design details.
When it may be relevant
It may be used for geometry and strengthening objectives that have been assessed.
Condition to confirm
Overlap, termination, anchorage, and connections must follow the design.
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Beam and Slab Lamination
What it is
Beam or slab lamination with an approved configuration.
When it may be relevant
It may be applied as part of a designed strengthening solution.
Condition to confirm
Configuration, connections, and final protection follow the approved design.
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What must be evaluated
Drawings, existing material condition, loads, strengthening objectives, damage, access, substrate condition, and authorized design inputs must be coordinated.
This list provides input for professional evaluation; it is not a self-diagnosis tool.
- Available structural drawings and element information
- Existing material condition and quality
- Loads and strengthening objectives
- Type, location, and extent of damage
- Substrate condition and repair requirements
- Work access and operational constraints
- Evaluation and design input from authorized parties
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Typical benefits
Composite systems may form part of capacity improvement, rehabilitation, or localized strengthening when appropriately designed and applied.
- May form part of a designed capacity improvement
- Supports rehabilitation of selected elements
- Can address a localized strengthening requirement
- Provides an execution path for an approved technical design
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Application environments
Beams, columns, slabs, concrete structures, industrial buildings, and commercial buildings may be assessed by the appropriate technical parties.
- Concrete beams
- Columns or selected elements
- Concrete slabs
- Concrete structures
- Industrial buildings
- Commercial buildings
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Execution sequence
Execution follows the evaluation, technical design, and approved scope.
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Design and area verification
Drawings, details, work boundaries, access, and element condition are coordinated.
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Substrate repair and preparation
Repair, profiling, and cleaning follow design and system requirements.
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Resin and fiber application
Fibers are applied with the orientation and layer count in the approved design.
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Details and curing
Overlap, termination, anchorage, connections, and curing follow technical details.
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Inspection and final protection
Inspection, documentation, and final protection are completed where relevant.
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Quality Control
Checks are performed at relevant stages according to the technical design and agreed scope.
- Substrate readiness and repairs included in scope
- Resin and fiber material identity
- Orientation and layer count according to design
- Overlap, termination, anchorage, and connection details
- Curing conditions and relevant inspection
- Execution records and final protection where required
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Design authority limitation
Fiber type, orientation, layer count, anchorage, connection details, and final protection must follow evaluation and technical design by authorized parties.
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Related solutions
Other protection requirements can be discussed separately from strengthening design.
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Prepare your consultation
Share the initial context and available technical input without replacing authorized evaluation and design.
- Project location
- Structural element of concern
- Structural function and strengthening objective
- Visible condition or damage
- Approximate element dimensions where available
- Photos or video of the condition
- Access and operational constraints
- Target timing
- Drawings, load information, and authorized design input
This information is an initial guide. System recommendations follow evaluation of actual conditions and the agreed scope.