Research Activities: 2003
Southview Bridge Rehabilitation in Rolla, Missouri | |||||||||
Status |
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Sequential Number | R103 | ||||||||
Matching Research Agency | City of Rolla and Missouri Department of Transportation | ||||||||
Principal Investigator |
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Student Involvement | Visiting Scholar: Gianpietro Boschetto, University of Padua, Italy | ||||||||
Project Objective | The City of Rolla has made available a bridge (Southview Drive on Carter Creek) to demonstrate the use of FRP composites in new construction. No steel reinforcement will be used in the construction of the new bridge deck for this project.
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Project Abstract | The characteristics of the existing bridge are as follows: Total length: 43 ft The existing and proposed addition are shown in the sketch below:
Deck Cross-Section
One lane of the bridge has already been constructed using a conventional four-cell steel reinforcement concrete (RC) box culvert. The abutments for the missing lane have also been constructed. One lane and the two sidewalks need to be added. The proposed project will demonstrate the use of glass FRP reinforcement for top and bottom mats and carbon FRP reinforcement for internal post-tensioning of the bridge deck. The project will include the following phases:
Prior to the construction of the bridge deck, two specimens representing a deck strip 18 inches wide and 23 feet long will be constructed by the same contractor and tested in the University laboratory. The two specimens are two spans strips, 12 and 6 feet long respectively. The 5 feet length remaining is required to provide sufficient development length at the supports and to allow the tensioning of the CFRP tendons.
Specimens Test Set-up | ||||||||
Anticipated Benefits | The construction of the bridge will demonstrate the use of FRP composite material in new construction instead of conventional steel reinforcement, avoiding the problems related to steel corrosion. Carbon FRP composite material is also used for internal post-tensioning of the concrete deck. | ||||||||
Modal Orientation | Assessment of FRP composite material as reinforcement in new construction and as internal post-tensioning in the bridge deck instead of steel. | ||||||||
Milestones |
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Relationship to other Research/Projects | Use of glass and carbon FRP rebars as concrete internal reinforcement | ||||||||
Technology Transfer Activities | Monitoring activities over three years (deflection deck and crack width measurements) | ||||||||
Transportation Research Board Keywords | Bridges, FRP | ||||||||
