Structural Engineering and Mechanics

  • 제20권6호
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  • Pages.655-672
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  • 2005
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Wave passage effect of seismic ground motions on the response of multiply supported structures

  • Zhang, Y.H. (State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology) ;
  • Lin, J.H. (State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology) ;
  • Williams, F.W. (Department of Building and Construction, City University of Hong Kong) ;
  • Li, Q.S. (Department of Building and Construction, City University of Hong Kong)
  • 투고 : 2004.05.26
  • 심사 : 2005.05.17
  • 발행 : 2005.08.20
⟨ 이전 논문 다음 논문 ⟩

초록

Seismic random responses due to the wave passage effect are extensively investigated by using the pseudo excitation method (PEM). Two examples are used. The first is very simple but also very informative, while the second is a realistic suspension bridge. Numerical results show that the seismic responses vary significantly with wave speed, especially for low velocity or large span. Such variations are not monotonic, especially for flexible structures. The contributions of the dynamic and quasi-static components depend heavily on the seismic wave velocity and the natural frequencies of structures. For the lower natural frequency cases, the dynamic component has significant effects on the dynamic responses of the structure, whereas the quasi-static component dominates for higher natural frequencies unless the wave speed is also high. It is concluded that if insufficient data on local seismic wave velocity is available, it is advisable to select several possible velocity values in the seismic analysis and to choose the most conservative of the results thus obtained as the basis for design.

키워드

참고문헌

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피인용 문헌

  1. Comparison of near-fault and far-fault ground motion effects on geometrically nonlinear earthquake behavior of suspension bridges vol.64, pp.1, 2012, https://doi.org/10.1007/s11069-012-0259-5
  2. Seismic Behavior of Long-Span Connected Structures under Multi-Supported and Multi-Dimensional Earthquake Excitations vol.16, pp.9, 2013, https://doi.org/10.1260/1369-4332.16.9.1579
  3. Trust-region based instantaneous optimal semi-active control of long-span spatially extended structures with MRF-04K damper vol.7, pp.4, 2008, https://doi.org/10.1007/s11803-008-1002-9
  4. An iterative algorithm for analysis of coupled structural-acoustic systems subject to random excitations vol.28, pp.2, 2012, https://doi.org/10.1007/s10409-012-0032-8
  5. Multiple-support seismic response of Bosporus Suspension Bridge for various random vibration methods vol.5, 2016, https://doi.org/10.1016/j.csse.2016.04.001
  6. Random vibration analysis of long-span structures subjected to spatially varying ground motions vol.29, pp.4, 2009, https://doi.org/10.1016/j.soildyn.2008.06.007
  7. Effect of travelling waves on stochastic seismic response and dynamic reliability of a long-span bridge on soft soil 2018, https://doi.org/10.1007/s10518-018-0316-x
  8. Wave-passage effect on the seismic response of suspension bridges considering local soil conditions vol.17, pp.2, 2005, https://doi.org/10.1007/s13296-017-6010-z