Title:
Health Study of Reinforced Concrete Test Bridge with Pier Damage
Author(s):
Steven B. Worley and Elizabeth K. Ervin
Publication:
Structural Journal
Volume:
114
Issue:
4
Appears on pages(s):
959-967
Keywords:
inspection; modal analysis; modal decomposition; nondestructive testing; structural health evaluation; structural health monitoring
DOI:
10.14359/51689724
Date:
7/1/2017
Abstract:
An inspection scheme is presented for detecting global damage in reinforced concrete structures. In-house software is used to generate quantitative damage assessment metrics. Temporal sensor data captured during a bridge inspection can be post-processed to analyze stability and produce strength representations. Structural weak points can be visually located, and the developed tool can decrease inspection time and increase its accuracy. This risk monitoring provides objective guidance on a structure’s current health as compared to any previous condition, currently limiting applications to periodic inspection. As verification, a laboratory-built reinforced concrete bridge is analyzed by comparing an as-built baseline to four damage cases with artificial pier softening. Signal processing, modal decomposition, and health quantification produced visual plots for 12 metrics indicating both damage severity and location. The developed methodology is employed to demonstrate that flexibility absolute difference, damage location vector, and modal flexibility index most accurately located pier connection damage.
Related References:
ACI Committee 318, 2005, “Building Code Requirements for Structural Concrete (ACI 318-05) and Commentary (ACI 318R-05),” American Concrete Institute, Farmington Hills, MI, 430 pp.
Atamturktur, H. S.; Gilligan, C. R.; and Salyards, K. A., 2013, “Detection of Internal Defects in Concrete Members using Global Vibration Characteristics,” ACI Materials Journal, V. 110, No. 5, Sept.-Oct., pp. 529-538.
Baghiee, N.; Esfahani, M. R.; and Moslem, K., 2009, “Studies on Damage and FRP Strengthening of Reinforced Concrete Beams by Vibration Monitoring,” Engineering Structures, V. 31, No. 4, pp. 875-893. doi: 10.1016/j.engstruct.2008.12.009
Brasiliano, A.; Doz, G. N.; and de Brito, J. L. V., 2004, “Damage Identification in Continuous Beams and Frame Structures Using the Residual Error Method in the Movement Equation,” Nuclear Engineering and Design, V. 227, No. 1, pp. 1-17. doi: 10.1016/j.nucengdes.2003.07.006
Chang, F. K., ed., 1999, Structural Health Monitoring 2000: Proceedings of the 2nd International Workshop on Structural Health Monitoring. CRC Press, Stanford, CA.
Dinh, K.; Gucunski, N.; Kim, J.; and Duong, T. H., 2016, “Understanding Depth-Amplitude Effects in Assessment of GPR Data from Concrete Bridge Decks,” NDT & E International, V. 83, pp. 48-58. doi: 10.1016/j.ndteint.2016.06.004
Federal Highway Administration (FHWA), 2012, “Deficient Bridges by State and Highway System,” Washington, DC, http://www.fhwa.dot.gov/bridge/deficient.cfm. (last accessed July 20, 2016)
Gutschmidt, S., and Cornwell, P. J., 2001, “Statistical Confidence Bounds for Structural Health Monitoring Damage Indicators.” Proceedings of the International Modal Analysis Conference, Society of Experimental Mechanics, Orlando, FL, pp. 193-198.
Heo, G. H.; Lee, G.; Yun, H. D.; Choi, M. Y.; and Lee, M. W., 2005, “Structural Health Monitoring Systems for a Steel Structure Using an Ambient Vibration,” Key Engineering Materials, V. 297-300, pp. 2102-2108.
Huth, O.; Feltrin, G.; Maeck, J.; Kilic, N.; and Motavalli, M., 2005, “Damage Identification Using Modal Data: Experiences on a Prestressed Concrete Bridge,” Journal of Structural Engineering, ASCE, V. 131, No. 12, pp. 1898-1910. doi: 10.1061/(ASCE)0733-9445(2005)131:12(1898)
Huynh, D.; He, J.; and Tran, D., 2005, “Damage Location Vector: A Non-Destructive Structural Damage Detection Technique,” Computers & Structures, V. 83, No. 28-30, pp. 2353-2367. doi: 10.1016/j.compstruc.2005.03.029
Kharkovsky, S.; Giri, P.; and Samali, B., 2016, “Non-contact Inspection of Construction Materials Using 3-Axis Multifunctional Imaging System with Microwave and Laser Sensing Techniques,” IEEE Instrumentation & Measurement Magazine, V. 19, No. 2, pp. 6-12. doi: 10.1109/MIM.2016.7462786
Matovu, M. J.; Farhidzadeh, A.; and Salamone, S., 2016, “Damage Assessment of Steel-Plate Concrete Composite Walls by Using Infrared Thermography: A Preliminary Study,” Journal of Civil Structural Health Monitoring, V. 6, No. 2, pp. 303-313. doi: 10.1007/s13349-016-0169-4
Ndambi, J. M.; Vantomme, J.; and Harri, K., 2002, “Damage Assessment in Reinforced Concrete Beams Using Eigenfrequencies and Mode Shape Derivatives,” Engineering Structures, V. 24, No. 4, pp. 501-515. doi: 10.1016/S0141-0296(01)00117-1
Pandey, A. K.; Biswas, M.; and Samman, M. M., 1991, “Damage Detection from Changes in Curvature Mode Shapes,” Journal of Sound and Vibration, V. 145, No. 2, pp. 321-332. doi: 10.1016/0022-460X(91)90595-B
Quek, S. T. and Hou, X., 2007, “Sensing Inaccessible Damage in a Structure Using Frequency Response Functions.” Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure and Homeland Security, No. 653103, pp. 1-12.
Sun, Z. G.; Ko, J. M.; and Ni, Y. Q., 2001, “Modal Indices for Identifying Damage Location in Cable-Stayed Kap Shui Mun Bridge.” Health Monitoring and Management of Civil Infrastructure Systems, pp. 379-389.
Yu, T.; Cheng, T. K.; Zhou, A.; and Lau, D., 2016, “Remote Defect Detection of FRP-Bonded Concrete System Using Acoustic-Laser and Imaging Radar Techniques,” Construction and Building Materials, V. 109, pp. 146-155. doi: 10.1016/j.conbuildmat.2015.12.113
Zhang, Y.; Planes, T.; Larose, E.; Obermann, A.; Rospars, C.; and Moreau, G., 2016, “Diffuse Ultrasound Monitoring of Stress and Damage Development on a 15-Ton Concrete Beam,” The Journal of the Acoustical Society of America, V. 139, No. 4, pp. 1691-1701. doi: 10.1121/1.4945097