Evaluating the Effectiveness of Vibration-Mitigation Devices for Structural Supports of Signs, Luminaires, and Traffic Signals
| 项目名称： | Evaluating the Effectiveness of Vibration-Mitigation Devices for Structural Supports of Signs, Luminaires, and Traffic Signals |
| 摘要： | Structural supports for signs, luminaires, and traffic signals are typically characterized by high flexibility and low damping, which makes them prone to wind-induced vibration and susceptible to fatigue and structural failure. Use of vibration-mitigation devices could reduce the induced vibration thereby increasing the life of new and existing structures; reducing costs of new structures; contributing to improved safety to the traveling public; and reduced maintenance, inspection, and repair costs. Although several mitigation devices have been proposed, only a few have been used, primarily due to the absence of test methods for evaluating their effectiveness and implications in the structural design process. Research is needed to develop test procedures for evaluating the effectiveness of these vibration-mitigation devices and considering their effect in the structural design process. Incorporating such procedures into the American Association of State Highway and Transportation Officials (AASHTO) Load and Resistance Factor Design (LRFD) Specifications for Structural Supports for Signs, Luminaires, and Traffic Signals (AASHTO LRFD SLTS Specifications) would facilitate the use of effective vibration-mitigation devices for new and existing structures and help accrue economic and other benefits. The objectives of this research are to (1) develop test procedures for evaluating the effectiveness of vibration-mitigation devices for structural supports of signs, luminaires, and traffic signals and (2) propose procedures for considering the effectiveness of these devices in the design process of the structural supports. These procedures shall be appropriate for potential incorporation into the AASHTO LRFD SLTS Specifications. |
| 状态： | Active |
| 资金： | 400000 |
| 资助组织： | National Cooperative Highway Research Program |
| 项目负责人： | Hanna, Amir N |
| 执行机构： | University of Connecticut, Storrs |
| 主要研究人员： | Christenson, Richard |
| 开始时间： | 20170403 |
| 预计完成日期： | 20190702 |
| 实际结束时间： | 0 |
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