I-10 Girder Repair Using Post-Tensioned Steel Rods and Carbon Fiber Composite Cables (CFCC)
| 项目名称： | I-10 Girder Repair Using Post-Tensioned Steel Rods and Carbon Fiber Composite Cables (CFCC) |
| 摘要： | The objective of this research is to continuous monitor the stress changes in all external reinforcement to ensure the safety of the bridge structure. This monitoring effort will provide the department on decision making on the future operation of the bridge. In addition, since both the traditional steel reinforcement and Carbon Fiber Composite Cables (CFCC) will be used, comparisons of the long-term performance of the two materials will be made. Due to the corrosive environment of the subject bridge there is a concern of continuing deterioration of the bridge girders and to be installed reinforcing steel bars and CFCC's. Continuous monitoring for the followings throughout the life time of this bridge is desirable, sudden change in stresses of the external reinforcing bars; gradual change in stresses of the external reinforcing bars and temperature. Any sudden increase in stresses of the internal reinforcement would indicate further deterioration of the prestressed girders either form spall of the concrete or breaking of the prestressed strands. Conversely, any sudden decrease in stresses would indicate failure of the anchorage of the reinforcement rendering the repair ineffective. Gradual change in stresses is most likely to be related to creep or corrosion of the reinforcement. Monitoring the change can provide insight into the behavior of the reinforcement. In order to better isolate the change of stresses due to structural condition changes from environment, temperature will be recorded along with the stresses. |
| 状态： | Active |
| 资金： | 60000.00 |
| 资助组织： | Louisiana Department of Transportation<==>Louisiana Transportation Research Center |
| 项目负责人： | Alaywan, Walid；King, Bill |
| 执行机构： | Louisiana Transportation Research Center<==>Louisiana Department of Transportation |
| 开始时间： | 20130318 |
| 实际结束时间： | 20140317 |
| 主题领域： | Bridges and other structures；Highways；Maintenance and Preservation；Pavements |
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