Experimental Study on Damping Ratios of in-situ Buildings
Accurate evaluation of damping ratios involving soilstructure interaction (SSI) effects is the prerequisite for seismic design of in-situ buildings. This study proposes a combined approach to identify damping ratios of SSI systems based on ambient excitation technique. The proposed approach is illustrated with main test process, sampling principle and algorithm steps through an engineering example, as along with its feasibility and validity. The proposed approach is employed for damping ratio identification of 82 buildings in Xi-an, China. Based on the experimental data, the variation range and tendency of damping ratios of these SSI systems, along with the preliminary influence factor, are shown and discussed. In addition, a fitting curve indicates the relation between the damping ratio and fundamental natural period of SSI system.
[1] A. Kareem, K. Gurley, "Damping in structures: Its evaluation and treatment
of uncertainty," Journal of Wind Engineering and Industrial Aerodynamics,
vol. 59, no. 2-3, pp. 131-157, 1996.
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suspension bridge," Journal of the Engineering Mechanics Division, ASCE,
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1999.
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mathematical basis for the random decrement vibration signature analysis
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[7] S. R. Ibrahim, and E. C. Mikulcik, "The experimental determination of
vibration parameters from time responses," The Shock and Vibration
Bulletin, vol. 46, no. 5, pp. 187-196, 1976.
[8] J. M. Ueng, C. C. Lin, P. L. Lin, "System identification of torsion coupled
buildings," Computers & Structures, vol. 74, no. 6, pp. 667-686, 2000.
[9] Y. Gao, R. B. Randall, "Determination of frequency response functions
from response measurements - 1. Extraction of poles and zeros from
response cepstra," Mechanical Systems and Signal Processing, vol. 10, no.
3, pp. 293-317, 1996.
[10] P. V. Overschee, B. DeMoor, "Subspace Algorithms for the Stochastic
Identification problem," Proceedings of the 30th IEEE Conference on
Decision and Control, Brighton, pp. 1321-1326, 1991.
[11] B. Peeters, G. De Roeck. "Reference-based stochastic subspace
Identification for output-only modal analysis," Mechanical Systems and
Signal Processing, vol. 13, no. 11, pp. 855-878, 1999.
[12] E. Reynders, G. De Roeck. "Reference-based combined
deterministic-stochastic subspace identification for experimental and
operational modal analysis," Mechanical Systems and Signal Processing,
vol. 22, no. 4, pp. 617-637, 2008.
[13] D. M. Siringoringo, Y. Fujino, "System identification of suspension bridge
from ambient vibration response," Engineering Structures, vol. 30, no. 2,
pp. 462-477, 2008.
[14] J. Marks II. Robert, "Introduction to Shannon Sampling and Interpolation
Theory", Springer-Verlag, New York, 1991.
[15] N. Satake, K. Suda, T. Arakawa, A. Sasaki, Y. Tamura, "Damping
evaluation using full-scale data of buildings in Japan", Journal of Structural
Engineering, ASCE, vol. 129, no. 4, pp. 470-477, 2003.
[1] A. Kareem, K. Gurley, "Damping in structures: Its evaluation and treatment
of uncertainty," Journal of Wind Engineering and Industrial Aerodynamics,
vol. 59, no. 2-3, pp. 131-157, 1996.
[2] P. Bischop, G.Fladwell, "An investigation into the theory of resonance
testing," Philosophical Transactions of the Royal Society of London, vol.
255, no. 1055, pp. 241-280, 1963.
[3] A. M. Abdel-Ghaffar, G. W. Housner, "Ambient vibration tests of
suspension bridge," Journal of the Engineering Mechanics Division, ASCE,
vol. 104, no. 5, pp. 983-999, 1978.
[4] H. A. Cole, "On-the-line analysis of random vibration, AIAA/ASME 9th
Structure," Structural Dynamics and Materials Conference, AIAA, pp.
68-288, 1968.
[5] C. S. Huang, C. H. Yeh, "Some properties of randomdec signatures,"
Mechanical Systems and Signal Processing, vol. 13, no. 3, pp. 491-507,
1999.
[6] J. K. Vandiver, A. B. Dunwood, R. B. Campbell, M. F. Cook, "A
mathematical basis for the random decrement vibration signature analysis
technique," Journal of Mechanical Design, vol. 104, no. 4, pp. 307-313,
1982.
[7] S. R. Ibrahim, and E. C. Mikulcik, "The experimental determination of
vibration parameters from time responses," The Shock and Vibration
Bulletin, vol. 46, no. 5, pp. 187-196, 1976.
[8] J. M. Ueng, C. C. Lin, P. L. Lin, "System identification of torsion coupled
buildings," Computers & Structures, vol. 74, no. 6, pp. 667-686, 2000.
[9] Y. Gao, R. B. Randall, "Determination of frequency response functions
from response measurements - 1. Extraction of poles and zeros from
response cepstra," Mechanical Systems and Signal Processing, vol. 10, no.
3, pp. 293-317, 1996.
[10] P. V. Overschee, B. DeMoor, "Subspace Algorithms for the Stochastic
Identification problem," Proceedings of the 30th IEEE Conference on
Decision and Control, Brighton, pp. 1321-1326, 1991.
[11] B. Peeters, G. De Roeck. "Reference-based stochastic subspace
Identification for output-only modal analysis," Mechanical Systems and
Signal Processing, vol. 13, no. 11, pp. 855-878, 1999.
[12] E. Reynders, G. De Roeck. "Reference-based combined
deterministic-stochastic subspace identification for experimental and
operational modal analysis," Mechanical Systems and Signal Processing,
vol. 22, no. 4, pp. 617-637, 2008.
[13] D. M. Siringoringo, Y. Fujino, "System identification of suspension bridge
from ambient vibration response," Engineering Structures, vol. 30, no. 2,
pp. 462-477, 2008.
[14] J. Marks II. Robert, "Introduction to Shannon Sampling and Interpolation
Theory", Springer-Verlag, New York, 1991.
[15] N. Satake, K. Suda, T. Arakawa, A. Sasaki, Y. Tamura, "Damping
evaluation using full-scale data of buildings in Japan", Journal of Structural
Engineering, ASCE, vol. 129, no. 4, pp. 470-477, 2003.
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:57260", author = "Zhiying Zhang and Chongdu Cho", title = "Experimental Study on Damping Ratios of in-situ Buildings", abstract = "Accurate evaluation of damping ratios involving soilstructure interaction (SSI) effects is the prerequisite for seismic design of in-situ buildings. This study proposes a combined approach to identify damping ratios of SSI systems based on ambient excitation technique. The proposed approach is illustrated with main test process, sampling principle and algorithm steps through an engineering example, as along with its feasibility and validity. The proposed approach is employed for damping ratio identification of 82 buildings in Xi-an, China. Based on the experimental data, the variation range and tendency of damping ratios of these SSI systems, along with the preliminary influence factor, are shown and discussed. In addition, a fitting curve indicates the relation between the damping ratio and fundamental natural period of SSI system.
", keywords = "Damping ratio, seismic design, soil-structure interaction, system parameter identification.", volume = "3", number = "2", pages = "190-5", }
