TRC2103 - Developing Guidelines for Evaluating Weathering Steel Bridges
| 项目名称： | TRC2103 - Developing Guidelines for Evaluating Weathering Steel Bridges |
| 摘要： | Weathering steel is used to protect a structural member from corrosion. Owners often use weathering steel for bridges with the expectation that the weathering steel structure will not corrode. Weathering steel has improved corrosion-resistant behavior over conventional steel. However, weathering steel is not maintenance-free and will corrode if not used in proper ambient conditions. Weathering steel retards corrosion, but may require future restoration through cleaning and painting. ARDOT inspects 1192 weathering steel bridges. Of these, 908 structures are state owned and have an element level inspection. Approximately 23% of these structures are documented to have oxide film degradation of the steel protective coating, patina (AASHTO bridge inspection code 3430). Other states have also experienced this condition resulting in highway departments facing the dilemma of how to restore weathering steel sections that have experienced corrosion due to chlorides and other contaminants. This research intends to develop guidelines for Arkansas bridge inspectors to use for evaluating patina on weathering steel bridges, and to identify methods to restore steel sections that are experiencing corrosion. |
| 状态： | Active |
| 资金： | $224,450 |
| 资助组织： | Federal Highway Administration<==>Arkansas Department of Transportation |
| 项目负责人： | Romano, Kim |
| 执行机构： | University of Arkansas, Fayetteville |
| 开始时间： | 20201130 |
| 预计完成日期： | 20221231 |
| 主题领域： | Bridges and other structures；Maintenance and Preservation；Transportation (General) |
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