Abstract
This study determines the dynamic characteristics of a prototype arch dam-reservoir-foundation system using Operational Modal Analysis method. Achievement of this purpose involved construction of a prototype arch dam-reservoir-foundation system under laboratory conditions. Ambient vibration tests on the arch dam model identified its natural frequencies, mode shapes, and damping ratios. Natural excitations such as small impact loads vibrated to arch dam. Sensitivity accelerometers which were placed on the dam’s crest collected signals in measurements. Measurements were recorded for empty and full reservoirs. Operational Modal Analysis software processed signals which were collected from the ambient vibration tests. Enhanced Frequency Domain Decomposition technique estimated dynamic characteristics of the dam. Results showed that there was an approximate 20–25% difference between natural frequencies related to empty and full reservoirs.
References
USACE (2003) Time-History Dynamic Analysis of Concrete Hydraulic Structures, Engineering and Design, USA
Alves SW, Hall JF (2006) System identification of a concrete arch dam and calibration of its finite element model. Earthquake Eng Struct Dyn 35(11):1321–1337
Ghanaat Y, Hall RL, Redpath BB (2000) Measurement and computation of dynamic response of arch dams including interaction effects. J Seismology Earthquake Eng 2:1–19
Darbre GR, Proulx J (2002) Continuous ambient-vibration monitoring of the arch dam of Mauvoisin. Earthquake Eng Struct Dyn 31(2):475–480
Daniell WE, Taylor CA (1999) Effective ambient vibration testing for validating numerical models of concrete dams. Earthquake Eng Struct Dyn 28(11):1327–1344
Zhou J, Lin G, Zhu T, Jefferson AD, Williams FW (2000) Experimental investigations into seismic failure of high arch dams. J Struct Eng 126(8):926–935
Mendes P, Oliveira S, Guerreiro L, Baptista MA, Costa AC (2004) Dynamic behavior of concrete dams monitoring and modeling. 13th World Conference on Earthquake Engineering, Vancouver, B.C., Canada, August 1–6, Paper No: 2126.
Wang BS, He ZC (2007) Crack detection of arch dam using statistical neural network based on the reductions of natural frequencies. J Sound Vib 302:1037–1047
Wang H, Li D (2007) Experimental study of dynamic damage of an arch dam. Earthquake Eng Struct Dyn 36:347–366
Wang H, Li D (2006) Experimental study of seismic overloading of large arch dam. Earthquake Eng Struct Dyn 35:199–216
Mendes P, Oliveira S (2007) Study of dam-reservoir dynamic interaction using vibration tests on a physical model, 2nd International Operational Modal Analysis Conference. Copenhagen, Denmark 2(18):477–484
Arch Dams (1968) A review of British research and development. Proceedings of the Symposium held at the Institution of Civil Engineers. 20–21 March, London, England
PULSE (2006) Analyzers and Solutions, Release 11.2. Brüel and Kjær, Sound and Vibration Measurement A/S, Denmark
OMA (2006) Operational Modal Analysis, Release 4.0. Structural Vibration Solutions A/S, Denmark, 2006
Acknowledgements
The TUBITAK and Karadeniz Technical University (KTU) supported this research through Research Grants No. 106M038 and 2006.112.001.1, respectively. The authors thank to KTU Hydraulic Laboratory workers for their assistance.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Sevim, B., Bayraktar, A., Altunışık, A.C. et al. Dynamic Characteristics of a Prototype Arch Dam. Exp Mech 51, 787–791 (2011). https://doi.org/10.1007/s11340-010-9392-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11340-010-9392-9