Abstract
A rapid and economical vibration-based non-destructive testing equipment has been developed to detect anomalies in external post-tensioning tendons used in post-tensioned bridges. This method provides a complementary non-destructive testing (NDT) technique to traditional inspection methods and other NDT techniques such as ultrasonic wave-based testing. The non-destructive tendon tester (NDTT) has been developed for testing the external tendons of a 12-span railway continuous concrete bridge. Thus, the NDTT has been designed, developed and applied to 25 tendons with a total of 216 tendon segments. The experimental tests for each tendon segment are carried out employing the operational modal analysis technique using several vertical and lateral accelerometers. From these, several structural performance indicators (PIs) based on the modal properties are extracted: fundamental frequency, the ratios between higher frequencies and the fundamental one, the symmetry/antisymmetry of mode shapes through the Modal Assurance Criterion between symmetric test point measurements, dam** of the fundamental mode and an estimation of the tension force. The latter is estimated through an in-line updating process of an analytical model (taut-string theory including bending stiffness) of the tendon segment. Once segment PIs are derived, the NDTT system analyses all the segment results of each tendon (9, 6 or 3 segments, depending on the tendon location), and an anomaly detection procedure searches for unexpected values based on significant deviation on the expected values depending on the segment location in the tendon.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Anania, L., Badalà, A., D’Agata, G.: Damage and collapse mode of existing post tensioned precast concrete bridge: the case of Petrulla viaduct. Eng. Struct. 162, 226–244 (2018)
Vonk, E., Schwarz, A., Bonetto, A.: Latest development in replacing external post-tensioning tendons. In: IABMAS Congress, Bridge Safety, Maintenance, Managements, Life-Cycle, Resilience and Sustainability, Barcelona (2022)
Cigada, A., Lucà, F., Malavisi, M., Mancini, G.: A damage detection strategy on bridge external tendons through long-time monitoring. In: Pakzad, S. (ed.) Dynamics of Civil Structures, Volume 2. CPSEMS, pp. 159–168. Springer, Cham (2021). https://doi.org/10.1007/978-3-030-47634-2_18
Chen, C.C., Wu, W.H., Leu, M.R., Lai, G.: Tension determination of stay cable or external tendon with complicated constraints using multiple vibration measurements. Measurement 86, 182–195 (2016)
Abdel Jaber, H., Glisic, B.: Monitoring of prestressing forces in prestressed concrete structures - an overview. Struct. Control Health Monit. 26 (2019)
Salamonte, S., Bartoli, I., Phillips, R., Nucera C., Lanza di Scalea, F.: Health monitoring of prestressing tendons in posttensioned concrete bridges. Transp. Res. Rec. J. Transp. Res. Board 2020, 21–27 (2011)
Gharehbaghi, V.R., et al.: A critical review on structural health monitoring: definitions, methods, and perspectives. Arch. Comput. Methods Eng.. 29, 2209–2235 (2022)
Liu, Z.H., Chen, L., Sun, L.M.: An experimental study of cable tension identification based on measurements of mode shapes. In: IABSE Congress, Structural Engineering for Future Societal Needs, Ghent (2021)
Debasish, J., Nagarajaiah, S.: Computer vision-based real-time cable tension estimation in Dubrovnik cable-stayed bridge using moving handheld video camera. Struct. Control. Health Monit. 28, e2713 (2021)
Naranjo, J.N., Vecino-Muñoz, B., Díaz, I.M., Renedo, C.M.C., García-Palacios, J.H.: Tension force estimation of post-tensioning external tendons through vibration-based monitoring: experimental validation. In: 10th International Conference on Experimental Vibration Analysis for Civil Engineering Structures, Milan (2023)
Chen, C.C., Wu, W.H., Chen, S.Y., Lai, G.: A Novel tension estimation approach for elastic cables by elimination of complex boundary condition effects employing mode shape functions. Eng. Struct. 166, 152–166 (2018)
Morse, P.M., Ingard, K.U.: Theoretical Acoustics. Princeton University Press (1986)
Acknowledgements
The authors acknowledge Grant PID2021-127627OB-I00 funded by Ministerio de Ciencia e Innovación, Agencia Estatal de Investigación and https://doi.org/10.13039/501100011033 FEDER, European Union. J. Naranjo-Pérez thanks Ministerio de Universidades for the Margarita Salas grant through the program ‘European Union - NextGenerationEU’.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2023 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this paper
Cite this paper
García-Palacios, J.H., Díaz, I.M., Naranjo-Pérez, J., Renedo, C.M.C. (2023). Vibration-Based Monitoring for Non-destructive Testing of Post-tensioning External Tendons. In: Limongelli, M.P., Giordano, P.F., Quqa, S., Gentile, C., Cigada, A. (eds) Experimental Vibration Analysis for Civil Engineering Structures. EVACES 2023. Lecture Notes in Civil Engineering, vol 432. Springer, Cham. https://doi.org/10.1007/978-3-031-39109-5_13
Download citation
DOI: https://doi.org/10.1007/978-3-031-39109-5_13
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-031-39108-8
Online ISBN: 978-3-031-39109-5
eBook Packages: EngineeringEngineering (R0)