Mitigation of Weldment Cracking of Highway Steel Structures due to the Galvanizing Process
| 项目名称： | Mitigation of Weldment Cracking of Highway Steel Structures due to the Galvanizing Process |
| 摘要： | Structural supports for signs, luminaires, and traffic signals and other highway steel structures are generally galvanized to prevent corrosion and provide a long service life. However, recent investigations have revealed incidents of cracking in weldments of galvanized structures that appear to be induced during the galvanizing process. When placed in service, structures with such flaws will exhibit short service life and pose safety concerns. There was a need to identify the factors contributing to the occurrence of weldment cracking during the galvanizing process of steel highway structures and to propose improved design, materials, and construction specifications to help mitigate such cracking. This information will ensure that galvanized highway structures provide the intended service life and eliminate related safety concerns. The objective of this research was to propose improved design, materials, and construction specifications of galvanized steel highway structures to mitigate weldment cracking caused by the galvanizing process. This research was concerned with structural supports for signs, luminaires, and traffic signals and bridge superstructures (other than decks). |
| 状态： | Completed |
| 资金： | 499975 |
| 资助组织： | Federal Highway Administration<==>American Association of State Highway & Transportation Officials (AASHTO)<==>National Cooperative Highway Research Program |
| 项目负责人： | Hanna, Amir N |
| 执行机构： | University of Kansas, Lawrence |
| 开始时间： | 20140701 |
| 预计完成日期： | 20200331 |
| 实际结束时间： | 20200331 |
| 主题领域： | Bridges and other structures；Design；Highways；Maintenance and Preservation |
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