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2003 Fiscal Year Final Research Report Summary

Nonlinear Dynamic Response and Seismic Performance of Steel Towers of Cable-Stayed Bridges under Great Earthquake Ground Motion

Research Project

Project/Area Number 14550473
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 構造工学・地震工学
Research InstitutionHokkaido University

Principal Investigator

HAYASHIKAWA Toshiro  Hokkaido University, Grad.School of Eng., Assoc.Prof., 大学院・工学研究科, 助教授 (90002302)

Project Period (FY) 2002 – 2003
KeywordsCable-stayed bridges / Steel towers / Seismic performance / Nonlinear dynamic response analysis / Level 2 earthquake / Initial imperfections / Energy dissipation system / Fiber model
Research Abstract

A finite element procedure based on total Lagrangian formulation for the nonlinear dynamic analysis of steel tower cable-stayed bridge under three dimensional great earthquake ground motion is carried out. From the peiformed investigations and discussions, the following conclusions can be summarized.
(1)The effectiveness of the horizontal beam position on tower axial force dynamic response is assured. The change of horizontal beam height from that of the original tower toward tower top reduces the compressive and tensile axial forces at tower base.
(2)The inverted V-type has the largest axial force response, where the maximum compressive and tension axial forces are about 4.70 and 2.55 times of the gravity loads, respectively. The large negative reaction makes the problem that the anchor bolts may fail in the lift up and the safety of the tower should be considered.
(3)The proposed energy dissipation system demonstrates its capability and effectiveness in reducing structural dements force … More s and controlling tower maximum displacement through its capability achieving the concentration of inelastic behavior at tower horizontal beam and keeping the rest of the structure elastic behavior as yield level decreases. The post-yield buckling capacity should be considered in the design of tower structures.
(4)The effect of vertical ground motion has highly dependence on damping scheme. The Rayleigh's damping is more effective in high frequency range, which leads to slightly effects of the vertical ground motion on tower dynamic response. The Royleigh's damping could be recommended for conservative nonlinear seismic response of high-rise towers.
(6)The low yield steel material could add damping primarily by material hysteresis and increase tower flexibility as the horizontal beam early attains, in terms tower structural system ability to reflect a portion of earthquake input energy increase. The energy dissipation system become effective in energy absorption through the horizontal beam.
(7)The massive rigid foundation actives the high frequency translation motion of the input ground motion and generates foundation-rocking responses. The predominant contribution to the vertical response at footing base corner from the massive foundation rocking rather than from the vertical excitation. The permanent settlement is found to be less significant. Less

  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] シェハタ エルラヘーム, 林川俊郎, 佐藤浩一: "斜張橋鋼製タワー骨組形状が地震時応答性状に与える影響に関する基礎的研究"構造光学論文集,土木学会. 48A. 359-368 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hayashikawa, T., Shehata, E.Abdel Raheem: "Nonlinear Dynamic Behavior of Steel Tower of Cable-Stayed Bridges with Passive Energy Dissipation System"Journal of Structural Engineering, JSCE. 48A. 863-874 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hayashikawa, T., Shehata, E.Abdel Raheem: "Steel Tower Seismic Response of Cable-Stayed Bridges with Passive Energy Dissipation System"Proceedings of the Seventh International Conference on Steel & Space Structure. 1. 191-198 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shehata, E.Abdel Raheem, Hayashikawa, T., Hashimoto, I.: "Study on Foundation Flexibility Effects on Steel Tower Seismic Response of Cable-Stayed Bridges under Great Earthquake"Journal of Construction Steel, JSSC. 10. 349-354 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shehata E.Abdel Raheem, Hayashikawa, T.: "Effect on Construction Imperfections on Steel Tower Dynamic Response of Cable-Stayed Bridge under Great Earthquake"Journal of Construction Steel, JSSC. 10. 355-362 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shehata, E.Abdel Raheem, Hayashikawa, T., Hashimoto, I.: "Effects of Soil-Foundation-Superstructure Interaction on Seismic Response of Cable-Stayed Bridges Tower with Spread Footing Foundation"Journal of Structural Engineering, JSCE. Vol.49A. 475-486 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shehata, E.Abdel Raheem, Hayashikawa, T.: "Parametric Study on Steel Tower Seismic Response of Cable-Stayed Bridges under Great Earthquake Ground Motion"Journal of Structural Mechanics and Earthquake Engineering, JSCE. I-63,No.731. 1-17 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shehata, E.Abdel Raheem, Hayashikawa, T.: "Nonlinear Behavior of Cable-Stayed Bridge Tower under Level II Earthquake Ground Motion"Proceedings of the International Workshop on Structural Health Monitoring of Bridges. I. 133-140 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shehata, E.Abdel Raheem, Hayashikawa, T.: "Soil Structure Interaction Effect on Seismic Response of Cable-Stayed Bridges Tower"Proceedings of the 1st International Conference of Civil Engineering Science. 1. 480-491 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hayashikawa, T.: "Dynamic Analysis and Seismic Design of Cable-Stayed Bridges"Proceedings of the 1st International Conference of Civil Engineering Science. 1. 846-859 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shehata, E.Abdel Raheem, Hayashikawa, T., Hashimoto, I.: "Seismic analysis of Cable-Stayed Bridges Tower Including Base Connection Anchor Bolts Lift-Off"Journal of Earthquake Engineering, JSCE. 27. 11 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shehata, E.Abdel Raheem, Hayashikawa, T.: "Dynamic Analysis of Cable-Stayed Bridge Tower under Level II Earthquake Ground Motion"Steel Construction Engineering, JSSC. 11(発表予定). (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shehata, E.Abdel Raheem, Hayashikawa, T., Sato, K.: "Effect of frameworks on dynamic behavior of steel towers of cable-stayed bridge under great earthquake ground motions"Journal of Structural Engineering, JSCE. 48(A). 359-368 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hayashikawa, T., Shehata, E.Abdel Raheem: "Nonlinear dynamic behavior of steel tower of cable-stayed bridges with passive energy dissipation system"Journal of Structural Engineering, JSCE. 48(A). 863-874 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hayashikawa, T., Shehata, E.Abdel Raheem: "Steel tower seismic response of cable-stayed bridges with passive energy dissipation system"Proceedings of the Seventh International Conference on Steel and Space Structures. 191-198 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shehata, E.Abdel Raheem, Hayashikawa, T., Hashimoto, I.: "Study on foundation flexibility effects on steel tower seismic response of cable-stayed bridges under great earthquake"Journal of Constructional Steel, JSSC. 10. 349-354 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shehata, E.Abdel Raheem, Hayashikawa, T.: "Effects on construction imperfections on steel tower dynamic response of cable-stayed bridge under great earthquake"Journal of Constructional Steel, JSSC. 10. 355-362 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shehata, E.Abdel Raheem, Hayashikawa, T., Hashimoto, I.: "Effects of soil-foundatioa-superstructure interaction on seismic response of cable-stayed bridge tower with spread footing foundation"Journal of Structural Engineering, JSCE. 49(A). 475-486 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shehata, E.Abdel Raheem, Hayashikawa, T.: "Parametric study on steel tower seismic response of cable-stayed bridges under great earthquake ground motion"Journal of Structural Mechanics and Earthquake Engineering, JSCE. No.731/I-63. 1-17 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shehata, E.Abdel Raheem, Hayashikawa, T.: "Nonlinear behavior of cable-stayed bridge tower under Level II earthquake ground motion"Proceedings of the International Workshop on Structural Health Monitoring of Bridges. 133-140 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shehata, E.Abdel Raheem, Hayashikawa, T.: "Soil structure interaction effect on seismic response of cable-stayed bridges tower"Proceedings of the first International Conference of Civil Engineering Science. 480-491 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hayashikawa, T.: "Dynamic analysis and seismic design of cable-stayed bridges"Proceedings of the first International Conference of Civil Engineering Science. 846-859 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shehata, E.Abdel Raheem, Hayashikawa, T., Hashimoto, I.: "Seismic analysis of cable-stayed bridges_tower including base_connection anchor bolts lift-off"Journal of Structural Engineering, JSCE. 27, Paper No.11(CD-ROM). (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shehata, E.Abdel Rahee, Hayashikawa, T.: "Dynamic analysis of cable-stayed bridge tower under level II earthquake ground motion"Steel Construction Engineering, JSSC. 11(41)(in press). (2003)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2005-04-19  

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