Field Testing and Long-Term Monitoring of Selected High-Mast Lighting Towers
| 项目名称： | Field Testing and Long-Term Monitoring of Selected High-Mast Lighting Towers |
| 摘要： | In 2013, Wyoming Department of Transportation (WYDOT) Projects B139025 and B133026 installed a combined 21 high-mast light towers (HMLT) in District 1 and District 3. The HMLTs were fabricated by Valmont Industries according to WYDOT Standard Plan and were installed by Modern Electric of Casper, WY. In May 2016, after only three years of service, inspectors discovered fatigue cracks on two HMLTs located at the Wagonhound Rest Area of of I-80 near Exit 267. One of the HMLTs was missing a luminaire. Further inspection revealed that one more HMLT (also located at the Wagonhound Rest Area) had significant fatigue damage too. Weather data collected by a nearby weather station was reviewed by WYDOT officials showing high winds, rain and freezing temperatures. The cause of the fatigue cracking cannot be determined at this time. Monitoring has been on-going at the selected locations for several months. While useful data have been collected, no significant vibration events have been observed. To increase the likelihood of recording such an event, it is proposed to extend the monitoring for an additional 12 months beyond the original end date. This proposal summarizes this work. |
| 状态： | Completed |
| 资金： | 209965 |
| 资助组织： | Wyoming Department of Transportation |
| 管理组织： | Purdue University |
| 项目负责人： | Cortez, Paul |
| 主要研究人员： | Lloyd, Jason B |
| 开始时间： | 20170314 |
| 预计完成日期： | 20200331 |
| 实际结束时间： | 0 |
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