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Fiber reinforced material and, in particular, fiber-reinforced-polymers (FRP), have been introduced for the structural rehabilitation and retrofitting of aging infrastructure as they are stronger than steel and not susceptible to corrosion. However, FRP plate can be more difficult to anchor to the base material (the underside of a bridge for example) because of low transverse compressive strength (i.e. it’s easily crushed), which can lead to breakage at or near the anchor point. Finding a suitable anchor system for FRP plates is a challenge as FRP plate is generally sensitive to lateral stress. It is, therefore, desirable to provide an improved anchoring system for fiber reinforced materials. Further, typical anchors for FRP plates tend to be very large, expensive, and difficult to manufacture.
A researcher at the University of Waterloo has created a simple, reusable, compact, easy to machine, and light weight anchor system, which includes an outer casing that supports a wedge to hold the FRP plate. The anchor system is configured to anchor an FRP plate to a concrete structure. This anchor system utilizes a unique patent pending geometry which eliminates breakage and enables 100% of the tensile strength of the FRP to be used. This unique geometry allows the new anchor system to be very compact and light, especially when compared to traditional anchor systems.
Advantages
This unique geometry anchor system has multiple advantages:
Potential applications
This new anchoring system can be used to anchor FRPs for:
Patent status
Patent issued
Stage of development
Working prototype
The University of Waterloo, renowned for its innovative spirit and co-op education model, excels in cutting-edge research across diverse fields, including advanced manufacturing, artificial intelligence, sustainability, and health technologies.
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