Unanchored Externally Bonded Fiber Reinforced Polymer (EBFRP) System

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We are pleased to share these original illustrations as part of our contribution to structural engineering. Researchers and professionals are welcome to cite and use them in publications or presentations with proper acknowledgment. For editable or high-resolution files, or use in educational or commercial contexts, please contact us.

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Figure Description:

This figure demonstrates an Unanchored Externally Bonded Fiber Reinforced Polymer (EBFRP) System used for structural strengthening, particularly in concrete slab and wall applications. The layout shows a fully bonded configuration without the use of mechanical anchorage elements. Notable characteristics of this system include:

• Continuous EBFRP Sheets or Laminates applied directly to the surfaces of slabs, walls, and beams to improve flexural and shear performance.
• Full-Surface Bonding Strategy where fiber-reinforced strips are arranged orthogonally and uniformly across the concrete elements to maximize composite action and stress distribution.
• No Anchors – The absence of mechanical anchoring means that performance relies solely on adhesive bonding between the FRP and concrete, making surface preparation and adhesive quality critical.
• Mesh Overlay Visualization (orange grid) signifies the underlying rebar framework, which works in tandem with the externally bonded FRP for comprehensive reinforcement.
• Corner and Edge Detailing shows the continuity of EBFRP around structural discontinuities, walls, and floor intersections, indicating its applicability in strengthening large planar areas such as slab panels and shear walls.

This system is especially applicable where minimal intrusion is required and where structural enhancement through surface bonding is sufficient without additional anchorage, such as in low-to-moderate seismic zones or for serviceability improvements.

We are pleased to share these original illustrations of the Multi-Anchored EBFRP System and Unanchored EBFRP System as part of our ongoing contribution to structural engineering and retrofit technology. Researchers, academics, engineers, and students are warmly invited to cite and acknowledge these visual assets in their publications, theses, presentations, or design documentation. These figures were developed to support better understanding and adoption of advanced FRP strengthening systems in concrete structures. For the original inventor files (editable or high-resolution formats), or if you'd like to feature these systems in educational or commercial contexts, please reach out to us directly. Together, let's advance the field of structural resilience and innovation. Thank you for your interest and support!