Development of Load Rating Procedures for Deteriorated Steel Beam Ends
| 项目名称： | Development of Load Rating Procedures for Deteriorated Steel Beam Ends |
| 摘要： | The purpose of this project is to identify a better methodology for determining the remaining load carrying capacity for deteriorating steel beam ends. Current methods are too conservative and may result in unnecessary bridge closings. The results of this project can provide Massachusetts Department of Transportation (MassDOT) engineers more accurate ways to assess bridge conditions. As the Commonwealth�s bridges age, MassDOT is witnessing more and more instances of deterioration of the web at steel beams ends due to corrosion as a result of leaking bridge joints. This deterioration reduces the load carrying capacity of beams at a critical point where the beam sits on its bearing. In extreme cases, the web has failed and the bridge had to be closed. Therefore, the determination of the remaining load carrying capacity is very important, however there are no good methods for performing this analysis and so, it has been very difficult to calculate realistic estimates of the remaining capacity of the web. The research objectives are to develop models that include the beam end and a large part of the bridge structure to accurately simulate the loading and boundary conditions of the deteriorated zone. These models will then be used to develop procedures for determining the safe capacity of deteriorated beam ends that can be incorporated into the MassDOT Bridge Manual. |
| 状态： | Active |
| 资金： | 198717 |
| 资助组织： | Federal Highway Administration |
| 管理组织： | Massachusetts Department of Transportation |
| 项目负责人： | McMahon, Patrick |
| 执行机构： | University of Massachusetts, Amherst |
| 主要研究人员： | Gerasimidis, Simos |
| 开始时间： | 20170810 |
| 预计完成日期： | 20190731 |
| 实际结束时间： | 0 |
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