Implementation and Field Evaluation of Pretensioned Concrete Girder End Crack Control Methods
| 项目名称： | Implementation and Field Evaluation of Pretensioned Concrete Girder End Crack Control Methods |
| 摘要： | Wisconsin bulb tee girders and girders in other states experience characteristic cracking at girder ends during de-tensioning and during lifting from the forms. These cracks pose durability concerns as corrosive agents can reach steel reinforcement or strands through these cracks, increasing long term maintenance costs, and potentially compromising structural capacity. This proposal outlines an approach for deploying selected crack control methods into Wisconsin practice. The success of crack control methods will be evaluated by measuring strains and crack sizes in girders built with control methods and by visual observation of girder ends for cracks during fabrication and erection. Phase II work is critical to implement a solution for the end cracking. |
| 状态： | Completed |
| 资金： | 75000.00 |
| 资助组织： | Research and Innovative Technology Administration<==>Wisconsin Department of Transportation |
| 执行机构： | University of Wisconsin, Madison |
| 开始时间： | 20140901 |
| 实际结束时间： | 20160531 |
| 主题领域： | Bridges and other structures；Construction；Highways |
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