DOI QR코드

DOI QR Code

A novel recursive stochastic subspace identification algorithm with its application in long-term structural health monitoring of office buildings

  • Wu, Wen-Hwa (Department of Construction Engineering, National Yunlin University of Science and Technology) ;
  • Jhou, Jhe-Wei (Department of Construction Engineering, National Yunlin University of Science and Technology) ;
  • Chen, Chien-Chou (Department of Construction Engineering, National Yunlin University of Science and Technology) ;
  • Lai, Gwolong (Department of Construction Engineering, National Yunlin University of Science and Technology)
  • 투고 : 2019.01.11
  • 심사 : 2019.06.23
  • 발행 : 2019.10.25

초록

This study develops a novel recursive algorithm to significantly enhance the computation efficiency of a recently proposed stochastic subspace identification (SSI) methodology based on an alternative stabilization diagram. Exemplified by the measurements taken from the two investigated office buildings, it is first demonstrated that merely one sixth of computation time and one fifth of computer memory are required with the new recursive algorithm. Such a progress would enable the realization of on-line and almost real-time monitoring for these two steel framed structures. This recursive SSI algorithm is further applied to analyze 20 months of monitoring data and comprehensively assess the environmental effects. It is certified that the root-mean-square (RMS) response can be utilized as an excellent index to represent most of the environmental effects and its variation strongly correlates with that of the modal frequency. More detailed examination by comparing the monthly correlation coefficient discloses that larger variations in modal frequency induced by greater RMS responses would typically lead to a higher correlation.

키워드

과제정보

연구 과제 주관 기관 : Ministry of Science and Technology of Republic of China

참고문헌

  1. Amezquita-Sanchez, J.P. and Adeli, H. (2016), "Signal processing techniques for vibration-based health monitoring of structures", Arch. Comput. Method Eng., 23(1), 1-15. https://doi.org/10.1007/s11831-014-9135-7.
  2. Apaydin, N.M., Kaya, Y., Safak, E. and Alcik, H. (2012), "Vibration characteristics of a suspension bridge under traffic and no traffic conditions", Earthq. Eng. Struct. D., 41(12), 1717-1723. https://doi.org/10.1002/eqe.1196.
  3. Bakir, P.G. (2011), "Automation of the stabilization diagram for subspace based system identification", Exp. Syst. Appl., 38(12), 14390-14397. https://doi.org/10.1016/j.eswa.2011.04.021.
  4. Belleri, A., Moaveni, B. and Restrepo, J.I. (2014), "Damage assessment through structural identification of a three-story large-scale precast concrete structure", Earthq. Eng. Struct. D., 43(1), 61-76. https://doi.org/10.1002/eqe.2332.
  5. Cao, Y.H., Yim, J.S., Zhao, Y. and Wang, M.L. (2011), "Temperature effects on cable stayed bridge using health monitoring system: a case study", Struct. Health Monit., 10(5), 523-537. https://doi.org/10.1177/1475921710388970.
  6. Carden, E.P. and Brownjohn J.M. (2008), "Fuzzy clustering of stability diagrams for vibration-based structural health monitoring", Comput.-Aided Civil Infrastruct. Eng., 23(5), 360-372. https://doi.org/10.1111/j.1467-8667.2008.00543.x.
  7. Faheem, B. and Piotr, O. (2014), "Seismic response trends evaluation and finite element model calibration of an instrumented RC building considering soil-structure interaction and non-structural components", Eng. Struct., 65, 111-123. https://doi.org/10.1016/j.engstruct.2014.01.045.
  8. Faravelli, L., Ubertini, F. and Fuggini, C. (2011), "System identification of a super high-rise building via a stochastic subspace approach", Smart Struct. Syst., 7(2), 133-152. https://doi.org/10.12989/sss.2011.7.2.133.
  9. Foti D., Gattulli V. and Potenza F. (2014) "Output-only identification and model updating by dynamic testing in unfavorable conditions of a seismically damaged building", Comput.-Aided Civil Infrastruct. Eng., 29(9), 659-675. https://doi.org/10.1111/mice.12071.
  10. Gentile, C. and Saisi, A. (2013), "Operational modal testing of historic structures at different levels of excitation", Constr. Build. Mater., 48, 1273-1285. https://doi.org/10.1016/j.conbuildmat.2013.01.013.
  11. He X., Moaveni B., Conte J.P. and Elgamal A. (2008), "Modal identification study of Vincent Thomas Bridge using simulated wind-induced ambient vibration data", Comput.-Aided Civil Infrastruct. Eng., 23(5), 373-388. https://doi.org/10.1111/j.1467-8667.2008.00544.x.
  12. Hu, W.H., Chuha, A., Caetano, E., Magalhaes, F. and Moutinho, C. (2010), "LabVIEW toolkits for output-only modal identification and long-term dynamic structural monitoring", Struct. Infrastruct. Eng., 6(5), 557-574. https://doi.org/10.1080/15732470903068672.
  13. Li, Z. and Chang, C.C. (2012), "Tracking of structural dynamic characteristics using recursive stochastic subspace identification and instrumental variable technique", J. Eng. Mech.-ASCE, 138(6), 591-600. https://doi.org/10.1061/(ASCE)EM.1943-7889.0000370.
  14. Li, S.L., Li, H., Liu, Y., Lan, C.M., Zhou, W.S. and Ou, J.P. (2014), "SMC structural health monitoring benchmark problem using monitored data from an actual cable-stayed bridge", Struct. Control Health Monit., 21(2), 156-172. https://doi.org/10.1142/S0219455416400253.
  15. Liu, Y.C., Loh, C.H. and Ni, Y.Q. (2013), "Stochastic subspace identification for output-only modal analysis: application to super high-rise tower under abnormal loading condition", Earthq. Eng. Struct. D., 42(4), 477-498. https://doi.org/10.1002/eqe.2223.
  16. Loh, C.H. and Liu, Y.C. (2013), "Application of recursive SSA as data pre-processing filter for stochastic subspace identification", Smart Struct. Syst., 11(1), 19-34. https://doi.org/10.12989/sss.2013.11.1.019.
  17. Loh, C.H., Weng, J.H., Chen, C.H. and Lu, K.C. (2013), "System identification of mid-story isolation building using both ambient and earthquake response data", Struct. Control Health Monit., 20(2), 19-35. https://doi.org/10.1002/stc.479.
  18. Loh, C.H., Weng, J.H., Liu, Y.C., Lin, P.Y. and Huang, S.K. (2011), "Structural damage diagnosis based on on-line recursive stochastic subspace identification", Smart Mater. Struct., 20(5), 055004. https://doi.org/10.1088/0964-1726/20/5/055004.
  19. Lorenzoni, F., Casarin, F., Caldon, M., Islami, K. and Modena, C. (2016), "Uncertainty quantification in structural health monitoring: applications on cultural heritage buildings", Mech. Syst. Sig. Pr., 66-67, 268-281. https://doi.org/10.1016/j.ymssp.2015.04.032.
  20. Macdonald, J.H.G. and Daniell, W.E. (2005), "Variation of modal parameters of a cable-stayed bridge identified from ambient vibration measurements and FE modelling", Eng. Struct., 27(13), 1916-1930. https://doi.org/10.1016/j.engstruct.2005.06.007.
  21. Magalhaes, F., Cunha, A. and Caetano, E. (2009), "Online automatic identification of the modal parameters of a long span arch bridge", Mech. Syst. Signal Pr., 23, 316-329. https://doi.org/10.1016/j.ymssp.2008.05.003.
  22. Min, Z., Sun, L. and Dan, D. (2009), "Effect analysis of environmental factors on structural modal parameters of a cable-stayed bridge", J. Vib. Shock, 28(10), 99-105. https://doi.org/10.3969/j.issn.1000-3835.2009.10.020
  23. Nayeri, R.D., Masri, S.F., Ghanem, R.G. and Nigbor, R.L. (2008), "A novel approach for the structural identification and monitoring of a fullscale 17-story building based on ambient vibration measurements", Smart Mater. Struct., 17(2), 1-19. https://doi.org/10.1088/0964-1726/17/2/025006.
  24. Peeters, B. (2000), "System identification and damage detection in civil engineering", Ph.D. Dissertation, Katholieke Universiteit Leuven, Leuven.
  25. Ramos, L.F., Marques, L., Lourenco, P.B., De Roeck, G., Campos-Costa, A. and Roque, J. (2010), "Monitoring historical masonry structures with operational modal analysis: two cases studies", Mech. Syst. Signal Pr., 24(5), 1291-1305. https://doi.org/10.1016/j.ymssp.2010.01.011.
  26. Reynders, E. and De Roeck, G. (2008), "Reference-based combined deterministic-stochastic subspace identification for experimental and operational modal analysis", Mech. Syst. Sig. Pr., 22(3), 617-637. https://doi.org/10.1016/j.ymssp.2007.09.004.
  27. Reynders, E., Houbrects, J. and De Roeck, G. (2012), "Fully automated (operational) modal analysis", Mech. Syst. Signal Pr., 29, 228-250. https://doi.org/10.1016/j.ymssp.2012.01.007.
  28. Saisi, A., Gentile, C. and Guidobaldi, M. (2015), "Post-earthquake continuous dynamic monitoring of the Gabbia Tower in Mantua, Italy", Constr. Build. Mater., 81, 101-112. https://doi.org/10.1016/j.conbuildmat.2015.02.010.
  29. Saisi, A., Guidobaldi, M. and Gentile, C. (2016), "On site investigation and health monitoring of a historic tower in Mantua, Italy", Appl. Sciences, 6(6), 173. https://doi.org/10.3390/app6060173.
  30. Scionti, M. and Lanslots, J.P. (2005), "Stabilisation diagrams: pole identification using fuzzy clustering techniques", Adv. Eng. Softw., 36(11), 768-779. https://doi.org/10.1016/j.advengsoft.2005.03.029.
  31. Sun, L., Zhou, Y. and Xie, D. (2015), "Periodic characteristics of environmental effects on modal frequencies of a cable-stayed bridge", J. Tongji U., 43(10), 1454-1462. https://doi.org/10.11908/j.issn.0253-374x.2015.10.002
  32. Ubertini, F., Comanducci, G., Cavalagli, N., Pisello, A.L., Materazzi, A.L. and Cotana, F. (2017), "Environmental effects on natural frequencies of the San Pietro Bell Tower in Perugia, Italy, and their removal for structural performance assessment", Mech. Syst. Sig. Pr., 82, 307-322. https://doi.org/10.1016/j.ymssp.2016.05.025.
  33. Ubertini, F., Gentile, C. and Materazzi, A.L. (2013), "Automated modal identification in operational conditions and its application to bridges", Eng. Struct., 46, 264-278. https://doi.org/10.1016/j.engstruct.2012.07.031.
  34. Van Overschee, P. and De Moor, B. (1991), "Subspace algorithm for the stochastic identification problem", Proceedings of the 30th IEEE Conference on Decision and Control, Brighton, England, December.
  35. Van Overschee, P. and De Moor, B. (1993), "Subspace algorithms for the stochastic identification problem", Automatica, 29(3), 649-660. https://doi.org/10.1016/0005-1098(93)90061-W.
  36. Van Overschee, P. and De Moor, B. (1996), Subspace Identification for Linear Systems: Theory-Implementation-Applications, Kluwer Academic Publishers, Dordecht, Netherlands.
  37. Weng, J.H. and Loh, C.H. (2011), "Recursive subspace identification for on-line tracking of structural modal parameter", Mech. Syst. Signal Pr., 25(8), 2923-2937. https://doi.org/10.1016/j.ymssp.2011.05.013.
  38. Westgate, R., Koo, K.Y. and Brownjohn, J. M. W. (2015), "Effect of vehicular loading on suspension bridge dynamic properties", Struct. Infrastruct. Eng., 11(2), 129-144. https://doi.org/10.1080/15732479.2013.850731.
  39. Whelam, M.J. and Janoyan, K.D. (2010), "In-service diagnostics of a highway bridge from a progressive damage case study", J Bridge Eng. - ASCE, 15(5), 597-607. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000088.
  40. Wu, W.H., Chen, C.C., Shi, W.S. and Huang, C.M. (2017b), "Assessment of environmental effects in scour monitoring of a cable-stayed bridge simply based on pier vibration measurements", Smart Struct. Syst., 20(2), 231-246. https://doi.org/10.12989/sss.2017.20.2.231.
  41. Wu, W.H., Wang, S.W., Chen, C.C. and Lai, G. (2016a), "Application of stochastic subspace identification for stay cables with an alternative stabilization diagram and hierarchical sifting process", Struct. Control Health Monit., 23(9), 1194-1213. https://doi.org/10.1002/stc.1836.
  42. Wu, W.H., Wang, S.W., Chen, C.C. and Lai, G. (2016b), "Mode identifiability of a cable-stayed bridge under different excitation conditions assessed with an improved algorithm based on stochastic subspace identification", Smart Struct. Syst., 17(3), 363-389. https://doi.org/10.12989/sss.2016.17.3.363.
  43. Wu W.H., Wang S.W., Chen C.C. and Lai G. (2017a), "Stable modal identification for civil structures based on a stochastic subspace algorithm with appropriate selection of time lag parameter", Struct. Monit. Maint., 4(4), 331-350. https://doi.org/10.12989/smm.2017.4.4.331.
  44. Wu, W.H., Wang, S.W., Chen, C.C. and Lai, G. (2017c), "Assessment of environmental and nondestructive earthquake effects on modal parameters of an office building based on longterm vibration measurements", Smart Mater. Struct., 26(5), 055034. https://doi.org/10.1088/1361-665X/aa6ae6.
  45. Wu, W.H., Wang, S.W., Chen, C.C. and Lai, G. (2019), "Modal parameter identification for closely spaced modes of civil structures based on an upgraded stochastic subspace methodology", Struct. Infrastruct. Eng., 15(3), 296-313. https://doi.org/10.1080/15732479.2018.1547770.
  46. Yuen, K.V. and Kuok, S. C. (2010), "Ambient interference in longterm monitoring of buildings", Eng. Struct., 32(8), 2379-2386. https://doi.org/10.1016/j.engstruct.2010.04.012.
  47. Zhang, Q.W., Fan, L.C. and Yuan, W.C. (2002), "Traffic-induced variability in dynamic properties of cable-stayed bridge", Earthquake Eng. Struct. Dyn., 31(11), 2015-2021. https://doi.org/10.1002/eqe.204.

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