Structural Health Monitoring: Alarming System

DOI: 10.4236/wsn.2013.55013   PDF   HTML     3,324 Downloads   5,682 Views   Citations


There is a huge investment in our infrastructure that is vital to our social and economic life. However, the aging and deterioration of the structures require implementing a damage detection system to monitor their structural integrity. In this study, a new alarming system was developed as part of a structural health monitoring system and installed in a scaled-down structure models. The designed system incorporated microprocessors, wireless communication, transducer, and cellular transmission that allow remote monitoring. The developed system facilitates continuous monitoring process of any part of structures and controlled remotely from any location. The system was equipped with data processing subsystem that detects structural behavior irregularity, defects, and potential failures. The system was tested using Linear Variable Differential Transformer (LVDT) for deflections and using strain gages to measure the developed axial and flexural strains in different structural models. Filtering algorithm was used to filter graphs and the data gathered in each loading stage was averaged and plotted to show the abrupt change in the values. The filtering system helps the alarming system to have a clear prediction of possible irregularities. The developed system provides the desired features of low cost, low power, small size, flexibility and easy implementation, remote accessing, early detection of problems, and simplified representation of the results.

Share and Cite:

A. ElSafty, A. Gamal, P. Kreidl and G. Merckel, "Structural Health Monitoring: Alarming System," Wireless Sensor Network, Vol. 5 No. 5, 2013, pp. 105-115. doi: 10.4236/wsn.2013.55013.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] F. W. Klaiber, K. F. Dunker, T. J. Wipf and W. W. Sanders, “Methods of Strengthening Existing Highway Bridges,” NCHRP Report 293, Transportation Research Board, National Research Council, Washington, 1987.
[2] P. C. Chang, A. Flatau and S. C. Liu, “Review Paper: Health Monitoring of Civil Infrastructure,” Structural Health Monitoring, Vol. 2, No. 3, 2003, pp. 257-267. doi:10.1177/1475921703036169
[3] K. P. Chong, J. Nicholas, N. J. Carino and G. Washer, “Health Monitoring of Civil Infrastructures,” Smart Materials & Structures, Vol. 12, No. 3, 2003, pp. 483-493. doi:10.1088/0964-1726/12/3/320
[4] N. Bonessio, G. Lomiento and G. Benzoni, “Damage Identification Procedure for Seismically Isolated Bridges,” Structural Control and Health Monitoring, Vol. 19, No. 5, 2012, pp. 565-578. doi:10.1002/stc.448
[5] B. F. Spencer Jr., M. E. Ruiz-Sandoval and N. Krata, “Smart Sensing Technology: Opportunities and Challenges,” Journal of Structural Control and Health Monitoring, Vol. 11, No. 4, 2004, pp. 349-368. doi:10.1002/stc.48
[6] J. P. Lynch and K. J. Loh, “A Summary Review of Wireless Sensors and Sensor Networks for Structural Health Monitoring,” The Shock and Vibration Digest, Vol. 38, No. 2, 2006, pp. 91-128. doi:10.1177/0583102406061499
[7] D. L. Mascarenas, M. D. Todd, G. Park and C. R. Farrar, “Development of an Impedance Based Wireless Sensor for Structural Health Monitoring,” Smart Materials and Structures, Vol. 16, No. 6, 2007, pp. 2137-2145. doi:10.1088/0964-1726/16/6/016
[8] C. R. Bennett, A. Chamorro, C. Chen, H. Solminihac and G. W. Flintsch, “Data Collection Technologies for Road Management,” Version-2, East Asia Pacific Transport Unit, The World Bank, Washington, 2007.
[9] A. Gamal, A. ElSafty and G. Merckel, “New System of Structural Health Monitoring,” Open Journal of Civil Engineering (OJCE), Vol. 3, No. 1, 2013, pp. 19-28. doi:10.4236/ojce.2013.31004
[10] National Instruments, “Strain Gauge Measurement—A Tutorial,” National Instruments Corporation, 1998.

comments powered by Disqus

Copyright © 2020 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.