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Connecticut Permanent Long-Term Bridge Monitoring Network Volume 5: Wireless Monitoring of the Hung Span in a Large Truss Bridge - I-95 NB Over the Thames River in New London (Bridge No. 3819)
| 题名： | Connecticut Permanent Long-Term Bridge Monitoring Network Volume 5: Wireless Monitoring of the Hung Span in a Large Truss Bridge - I-95 NB Over the Thames River in New London (Bridge No. 3819) |
| 作者： | Scianna, A.; Prusaczyk, S.; Christenson, R. E.; DeWolf, J. T. |
| 关键词： | Bridge monitoring##Wireless sensors##Truss bridge##Bridges(Structures)##Steel bridges##Concrete bridges##Sensors##Vibration accelerometers##Strain gages##Tilt meters##Measuring instruments##Installation##Operation##Traffic loading##Bridge networks##Connecticut##Bridge monitoring networks## |
| 摘要： | This report describes the instrumentation and data acquisition for the center hung segment in the largest truss bridge in Connecticut, located on the interstate system. The monitoring system was developed as a joint effort between researchers at the University of Connecticut and a company manufacturing wireless sensor technology, and it is the first of its kind. The great lengths between sensors, along with the difficulty of running wires over the trusses, led to the decision to use wireless sensors. Access to the underside of the bridge is severely limited, requiring closing of a lane whenever researchers are on the bridge. Since wireless sensors require batteries for power, necessitating replacement of batteries on a regular basis, researchers proposed use of solar panels along with rechargeable batteries for use with the sensors. The initial system was developed and placed on the bridge and used to collect strains and accelerations. Using what was learned from the initial system, changes and upgrades were made to the equipment. This included sensor modifications, replacement of some of the solar panels and revisions to the monitoring techniques. This report shows what was learned from the initial phases for this first-of-its kind monitoring system. |
| 总页数： | 23 |
| 报告类型： | 科技报告 |
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- Connecticut Permanent Long-Term Bridge Monitoring Network Volume 1: Monitoring of Post-Tensioned Segmental Concrete Box-Girder Bridge - I-95 Over the Connecticut River in Old Saybrook (bridge No. 6200)
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