Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Smart Structures and Systems Volume 12, Number 6, December 2013 , pages 661-678 DOI: https://doi.org/10.12989/sss.2013.12.6.661 |
|
|
|
Bridge load testing and rating: a case study through wireless sensing technology |
||
Samir N. Shoukry, Yan Luo, Mourad Y. Riad and Gergis W. William
|
||
| Abstract | ||
| In this paper, a wireless sensing system for structural field evaluation and rating of bridges is presented. The system uses a wireless platform integrated with traditional analogue sensors including strain gages and accelerometers along with the operating software. A wireless vehicle position indicator is developed using a tri-axial accelerometer node that is mounted on the test vehicle, and was used for identifying the moving truck position during load testing. The developed software is capable of calculating the theoretical bridge rating factors based on AASHTO Load and Resistance Factor Rating specifications, and automatically produces the field adjustment factor through load testing data. The sensing system along with its application in bridge deck rating was successfully demonstrated on the Evansville Bridge in West Virginia. A finite element model was conducted for the test bridge, and was used to calculate the load distribution factors of the bridge deck after verifying its results using field data. A confirmation field test was conducted on the same bridge and its results varied by only 3% from the first test. The proposed wireless sensing system proved to be a reliable tool that overcomes multiple drawbacks of conventional wired sensing platforms designed for structural load evaluation of bridges. | ||
| Key Words | ||
| testing and inspecting procedures; bridge load rating; remote sensing; wireless data acquisition; finite element modeling | ||
| Address | ||
| Samir N. Shoukry : Department of Mechanical and Aerospace Eng., West Virginia University, Morgantown, WV 26506, USA Yan Luo : DEI Group, Millersville, MD 21108, USA Mourad Y. Riad and Gergis W. William : Department of Civil and Environmental Eng., West Virginia University, Morgantown, WV 26506, USA | ||