Experimental Study on the Optimal Layering Position of the Piezocomposite Electricity Generating Element Built-in an Innovative Traffic Load-Measuring Bridge Bearing

Abstract:

The bearings of a bridge are indispensable structural members, which support the superstructure, transfer the loads of the superstructure to the substructure and, accommodate the horizontal and vertical motions of the superstructure caused by all types of loads like traffic. Such traffic loads induce the bridge to vibrate but this energy is wasted. Therefore, a piezocomposite electricity generating element (PCGE) has been introduced in the bearing to exploit effectively this vibrational energy. The bridge bearing with built-in PCGE was seen to be effective for measuring the traffic loads and, detecting eventual overloaded or overspeeding vehicles. In a will to optimize the amount of energy generated by this bearing, this study compares experimentally the amount of electricity produced by the PCGE with respect to its position in the bridge bearing through a series of dynamic loading tests to find out the position of the PCGE providing the most efficient electricity generation.

• Periodical: Advanced Materials Research (Volume 811)
• Pages: 365-369
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.811.365
• Online since: September 2013
• Authors: Jinkyo F. Choo, Dong Ho Ha, Chang Hyung Lee, Won Seo Jang
• Keywords: Bridge Bearing, Dynamic Loading Test, Efficiency of Electricity Generation, Load Measurement, Piezocomposite Electricity Generating Element (PCGE)

References

[1] J. Zhao, N.S. Goo, J. F Choo, D.H. Ha: Design and performance evaluation of a d33-mode piezocomposite electricity generating element. submitted to J. Mechanical Science and Technology (2012).

DOI: 10.1007/s12206-013-0942-9

[2] D.H. Ha, W.S. Jang, J.F. Choo, C.H. Lee: Dynamic test of a bearing with built-in piezo-composite generating element. Proceedings of EESK Conference 2013 Vol. 17 (2013), pp.101-104.

[3] D.H. Ha, J.F. Choo, C.H. Lee, W.S. Jang, N. S Goo: Dynamic Characteristics of a Multi-Functional Bridge Bearing with Built-in Piezocomposite Element. 2013 International Symposium on Mechatronics and Applied Mechanics, May 15-16, 2013, Nanjing, China (2013).

DOI: 10.4028/www.scientific.net/amm.432.275

[4] J.F. Choo, D,H. Ha, N.S. Goo, W. S Jang : Preliminary Tests for a Multi-Functional Bridge Bearing with Built-In Piezoelectric Material. Advanced Science Letters, Adv. Sci. Lett. 19, 37-41 (2013).

DOI: 10.1166/asl.2013.4714

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