Field Demonstration-Instrumentation and monitoring of Accelerated Repair Using UHPC Shell
| 项目名称： | Field Demonstration-Instrumentation and monitoring of Accelerated Repair Using UHPC Shell |
| 摘要： | Recently Florida International University (FIU) has developed repair techniques that are capable of repairing damaged bridge elements using Ultra High Performance Concrete (UHPC). Technique is applicable to both flexural and axially dominated bridge elements. U.S. transportation infrastructure consists of more than 60,000 miles of coastal roadways. Significant number of bridges located along these coastal roadways are subject to harsh environment resulting in corrosion and other damages. In addition to bridges located in the coastal areas, other bridges located in-land, also contain damages that need development of accelerated repair techniques. Several methods are currently used by bridge owners for repairing damaged bridge elements that include, wrapping damaged portions of bridge elements with Fiber Reinforced Polymers (FRP), steel jacketing and wrapping using conventional concrete. The Accelerated UHPC shell retrofit technique developed at FIU has many advantages over the existing retrofit techniques: A) UHPC is a very durable material with a very low permeability; B) the high compressive and tensile strength of UHPC strengthen the damaged bridge elements, in fact, the retrofit technique should be referred to as upgrade technique, since the end product could be stronger than even original bridge elements; and C) the properties of UHPC allow tension development of steel reinforcement over a short length, in case some of the reinforcement in the retrofitted areas needs replacement. |
| 状态： | Active |
| 资助组织： | Office of the Assistant Secretary for Research and Technology |
| 管理组织： | Department of Transportation |
| 项目负责人： | Azizinamini, Atorod |
| 执行机构： | Accelerated Bridge Construction University Transportation Center (ABC-UTC) |
| 主要研究人员： | Lau, Kingsley |
| 开始时间： | 20180101 |
| 预计完成日期： | 20201231 |
| 实际结束时间： | 0 |
相关文献
- Use of UHPC in Conjection with Pneumatic Spray Application and Robotic for Repair and Strengthening of Culverts- Phase I
- Rapid Repair and Retrofit of Timber Piles Using UHPC
- Laboratory and Field Testing and Evaluation of Precast Bridge Elements
- Field Evaluation of Hybrid-Composite Girder Bridges in Missouri
- Structural Health Monitoring to Determine Long-Term Behavior of AFRP Composite Bars in Prestressed Concrete Panels for Field Deployment
- Construction of Three Large-Scale Robots Capable of Constructing UHPC Shell, Repair of Culvert and Automated MFL
检索历史
应用推荐
