Structural Engineering and Mechanics

  • 제35권3호
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  • Pages.365-377
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  • 2010
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Nonlinear behavior of concrete gravity dams and effect of input spatially variation

  • Mirzabozorg, H. (Civil Engineering Department, KN-Toosi University of Technology) ;
  • Kianoush, R. (Civil Engineering Department, Ryerson University) ;
  • Varmazyari, M. (Civil Engineering Department, KN-Toosi University of Technology)
  • 투고 : 2008.09.16
  • 심사 : 2010.02.05
  • 발행 : 2010.06.20
⟨ 이전 논문 다음 논문 ⟩

초록

In the present article, effect of non-uniform excitation due to spatially variation of seismic input on nonlinear response of concrete gravity dams is considered. The reservoir is assumed compressible. Isotropic damage mechanics approach is used to model static and dynamic nonlinear behavior of mass concrete in 2D space. The validity of utilized nonlinear model is considered using available theoretical results under static and dynamic conditions. The tallest monolith of Pine Flat dam is selected as a case study. Two cases are analyzed for considering the effect of limited wave propagation velocity on seismic behavior of the dam-reservoir system in which travelling velocities are chosen as 2000 m/s and infinity. It is found that tensile damage in neck and toe regions and also, in the vicinity of the base increase when the system is excited non-uniformly.

키워드

참고문헌

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피인용 문헌

  1. Impact of load combination on the stability analysis of an arch dam subjected to stochastic non-uniform excitations vol.19, pp.3, 2015, https://doi.org/10.1080/19648189.2014.960097
  2. Velocity structure building and ground motion simulation of the 2014 Ludian Ms 6.5 Earthquake vol.17, pp.4, 2018, https://doi.org/10.1007/s11803-018-0471-8
  3. Wave passage and incoherency effects on seismic response of high arch dams vol.11, pp.4, 2010, https://doi.org/10.1007/s11803-012-0142-0