Science in China Series E: Technological Sciences

, Volume 52, Issue 2, pp 518–529 | Cite as

Seismic damage-cracking analysis of arch dams using different earthquake input mechanisms

  • JianWen Pan
  • ChuHan Zhang
  • JinTing Wang
  • YanJie Xu


In this study, a nonlinear model is presented for analysis of damage-cracking behavior in arch dams during strong earthquakes using different seismic input mechanisms. The nonlinear system includes a plastic-damage model for cyclic loading of concrete considering strain softening and a contact boundary model of contraction joint opening. Two different earthquake input mechanisms are used for comparison, including massless foundation input model and viscous-spring boundary model considering radiation damping due to infinite canyon. The results demonstrate that effects of seismic input mechanism and radiation damping on nonlinear response and damage-cracking of the dam are significant. Compared with the results of using massless foundation input model, the damage-cracking region and contraction joint opening are substantially reduced when using viscous-spring boundary model to take into account radiation damping. However, if the damping ratio of the dam is artificially increased to about 10%–15% for massless foundation input model, the joint opening and damage-cracking of the dam are comparable to the results obtained from the viscous-spring boundary model.


earthquake input mechanism damage-cracking radiation damping contraction joints arch dam 


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Copyright information

© Science in China Press and Springer-Verlag GmbH 2008

Authors and Affiliations

  • JianWen Pan
    • 1
  • ChuHan Zhang
    • 1
  • JinTing Wang
    • 1
  • YanJie Xu
    • 1
  1. 1.State Key Laboratory of Hydroscience and EngineeringTsinghua UniversityBeijingChina

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