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Seismic Evaluation of the I-24 Corridor for Moderate Seismic Events

Bridges on or over the I-24 corridor will be evaluated for projected seismic events. If needed, retrofit measures will be proposed to enhance the capability of the bridges to survive an earthquake, and to remain open to traffic.

Barge Impact Loads on Bridge Piers

Laboratory tests are being conducted to determine impact of loads on bridge piers resulting from barges of various sizes and impact speeds. The outcome of this research will lead to more accurate load prediction on bridges over Kentucky's navigable waterways.

Structural Evaluation of the Roebling Bridge return to top

This study will assess the response of the bridge to current and projected traffic loads. The study involves field testing and modeling of the bridge in order to generate "signatures" which will be the basis for future evaluations and retrofits, and will assist in the preservation of the Roebling bridge, which is regarded by many as a "National Treasure."

Full Depth Bridge Slab Overlay

This study is evaluating the structural effects of full depth slab overlays on Kentucky's bridges and their viability as a method of rehabilitation for other bridges. Full depth slabs overlays reduce overall project costs, and enable bridge load capacities to be increased without need of expensive slab and girder replacement.

Bridges Susceptible to Vessel and Truck Impact

This study is developing risk assessment models in order to determine the probability and the associated dynamic impact energies of vessel and truck impact with bridges. This will lead to rational and more realistic design guidelines and methodologies for bridges susceptible to vessel and truck impact.

Fiber Reinforced Polymer (FRP) Bridge Deck Systems

Various FRP bridge decks were tested in the laboratory and compared with standard steel reinforced concrete (R/C) panels. The FRP panels surpassed the R/C panels in load capacity and deflection limitations. The advantage of the FRP panels lies in the rapid replacement of bridge decks, and in longer service life.

Reinforcement Alternatives for Concrete Bridge Decks return to top

Laboratory evaluation of bridge deck panels without top mat reinforcement and panels with top mat carbon FRP rebars. Field deployment will be carried out following testing. This approach will eliminate bridge deck degradation resulting from corrosion of top steel mat.

Carbon FRP for Repair and Strengthening of Bridges

FRP carbon cloth and strips are used to increase/strengthen the shear and for flexural capacities of reinforced concrete beams/girders. The main advantage of this technique is upgrading and prolonging the life of in service bridges.

Monitoring of a Bridge Deck Partially Reinforced With FRP Rebars

The Roger's Creek bridge in Bourbon County, KY has glass FRB rebars in a portion of the top mat. Field monitoring is being conducted on a monthly basis for a period of three years to determine crack formation, crack width and length over a period of time. This study will provide a one to one comparison between the FRP and steel reinforced portions of the bridge deck.

Bridge With Concrete I-Beams Pre-stressed With CFRP Tendon

Carbon FRP pre-stressing tendons will be deployed, following laboratory testing, on a bridge in Kentucky. The use of this high performance material will prolong the service life of bridges.

Non-Magnetic Platform

This project deals with the use of advanced composite materials in an equipment platform for acoustic testing at the Coastal Systems Station of the Naval Surface Warfare Center in Panama City, Florida. This project illustrates the value of research by transferring aerospace technology to infrastructure applications leading to an economical solution to a complex construction project.

> Completed Projects

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Seismic Rating and Evaluation of Highway Structures

In this study, dynamic site periods due to seismic loading were generated for the Jackson Purchase in western Kentucky. Seismic evaluations of the US 51 and US 41 bridges were conducted along with stability assessments of highway bridge approach embankments and retaining structures.

High-Performance Composite Material Structures

Testing, design and construction of the Clear Creek bridge, which is the longest FRP girder bridge in the world, were conducted in this study. This 60-foot pedestrian bridge is made of light weight composite materials and is located in the Daniel Boone National Forest in Bath County. In addition, the construction of a composite deck on the 420 ft. long suspension bridge in Johnson County, Kentucky, in 1999, makes the longest bridge deck in the world.

FRP Reinforcing Bars in Bridge Decks

Laboratory testing was conducted on bridge deck panels reinforced with steel and/or glass FRP rebars to generate design guidelines. The GFRP rebars were later deployed in the Roger's Creek bridge in Bourbon County.

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