Structural Engineering and Mechanics

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Evaluation of typhoon induced fatigue damage using health monitoring data for the Tsing Ma Bridge

  • Chan, Tommy H.T. (Department of Civil and Structural Engineering, The Hong Kong Polytechnic University) ;
  • Li, Z.X. (College of Civil Engineering, Southeast University) ;
  • Ko, J.M. (Department of Civil and Structural Engineering, The Hong Kong Polytechnic University)
  • Received : 2003.07.24
  • Accepted : 2004.01.08
  • Published : 2004.05.25
⟨ Previous Next ⟩

Abstract

This paper aims to evaluate the effect of typhoons on fatigue damage accumulation in steel decks of long-span suspension bridges. The strain-time histories at critical locations of deck sections of long-span bridges during different typhoons passing the bridge area are investigated by using on-line strain data acquired from the structural health monitoring system installed on the bridge. The fatigue damage models based on Miner's Law and Continuum Damage Mechanics (CDM) are applied to calculate the increment of fatigue damage due to the action of a typhoon. Accumulated fatigue damage during the typhoon is also calculated and compared between Miner's Law and the CDM method. It is found that for the Tsing Ma Bridge case, the stress spectrum generated by a typhoon is significantly different than that generated by normal traffic and its histogram shapes can be described approximately as a Rayleigh distribution. The influence of typhoon loading on accumulative fatigue damage is more significant than that due to normal traffic loading. The increment of fatigue damage generated by hourly stress spectrum for the maximum typhoon loading may be much greater than those for normal traffic loading. It is, therefore, concluded that it is necessary to evaluate typhoon induced fatigue damage for the purpose of accurately evaluating accumulative fatigue damage for long-span bridges located within typhoon prone regions.

Keywords

References

  1. Aktan, A.E., Grimmelsman, K.A. and Helmicki, A.J. (1998), "Issues and opportunities in bridge healthmonitoring", Proc. of the Second World Conference on Structural Control, June 28 to July 2, 1998Kyoto, Japan, ed. Takuji K. et al., 3, 2359-2368.
  2. Chan, T.H.T., Li, Z.X. and Ko, J.M. (2001), "Fatigue analysis and life prediction of bridge with structuralhealth monitoring data - Part II: Application", Int. J. of Fatigue, 23(1), 55-64. https://doi.org/10.1016/S0142-1123(00)00069-4
  3. Chan, T.H.T., Ko, J.M. and Li, Z.X. (2000), "Fatigue analysis for bridge-deck sections under blocked cyclesof traffic loading", Nondestructive Evaluation of Highways, Utilities, and Pipelines IV, Proceedings ofSPIE, 7-9 March 2000, 3995, ed. Aktan, A.E. and Gosselin, S.R., 358-369.
  4. Dowling, N.E. (1972), "Fatigue failure predictions for complicated stress-strain history", J. of Materials,JMLSA, 7(1), 71-87.
  5. Flint and Neill Partnership (1998), Lantau Fixed Crossing and Ting Kau Bridge, Wind and Structural HealthMonitoring Criticality and Vulnerability Ratings Review, Highways Department, Government of HongKong, Jan. 1998.
  6. Gu, M., Xu, Y.L., Chen, L.Z. and Xiang, H.F. (1999), "Fatigue life estimation of steel girder of Yangpu cablestayedBridge due to buffeting", J. Wind Engineering and Industrial Aerodynamics, 80, 384-400.
  7. Gurney, T. (1992), Fatigue of Steel Bridge Decks, HMSO at Edinburgh Press, London.
  8. [HREF 1] The Hong Kong Observatory - http://www.weather.gov.hk/
  9. Krajcinovic, D. and Lemaitre, J. (1987), Continuum Damage Mechanics: Theory and Applications, Springer,Vienna.
  10. Lau, C.K. and Wong, K.Y. (1997), "Design, construction and monitoring of the three key cable-supportedbridges in Hong Kong", Structures in the New Millennium, P.K.K. Lee (ed.), A.A. Balkema,Rotterdam, Netherlands, 105-115.
  11. Lau, C.K., Wong, K.Y. and Flint, A.R. (2000), "The structural health monitoring system for cable-supportedbridges in Tsing Ma control area", Proc. of Workshop on Research and Monitoring of Long SpanBridges, April 2000, Hong Kong, 14-23.
  12. Li, Z.X., Chan, T.H.T. and Ko, J.M. (2000), "Health monitoring and fatigue damage assessment of the bridgedeck sections", Nondestructive Evaluation of Highways, Utilities, and Pipelines IV, Proceedings ofSPIE, 7-9 March 2000, 3995, ed. Aktan, A.E. and Gosselin, S.R., 346-357.
  13. Li, Z.X., Chan, T.H.T. and Ko, J.M. (2001), "Fatigue analysis and life prediction of bridge with structuralhealth monitoring data - Part I: Methodology and strategy", Int. J. of Fatigue, 23(1), 45-53. https://doi.org/10.1016/S0142-1123(00)00068-2
  14. Schilling, C.G. et al. (1978), "Fatigue of welded steel bridge members under variable-amplitude loadings",NCHRP Report 188, National Academy Press, Washington D.C.
  15. Virlogeux, M. (1992), Wind design and analysis for the Normandy Bridge, in: Larsen, A. (Ed.), Aerodynamicsof Large Bridges, Balkema, Rotterdam, 183-216.

Cited by

  1. Study of the structural damage identification method based on multi-mode information fusion vol.31, pp.3, 2009, https://doi.org/10.12989/sem.2009.31.3.333
  2. Investigation of mode identifiability of a cable-stayed bridge: comparison from ambient vibration responses and from typhoon-induced dynamic responses vol.15, pp.2, 2015, https://doi.org/10.12989/sss.2015.15.2.447
  3. Measurements of dielectric constants of soil to develop a landslide prediction system vol.7, pp.4, 2004, https://doi.org/10.12989/sss.2011.7.4.319