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Comparison of near-fault and far-fault ground motion effects on geometrically nonlinear earthquake behavior of suspension bridges

Author

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  • Süleyman Adanur
  • Ahmet Altunişik
  • Alemdar Bayraktar
  • Mehmet Akköse

Abstract

This paper presents a comparison of near-fault and far-fault ground motion effects on geometrically nonlinear earthquake behavior of suspension bridges. Boğaziçi (The First Bosporus) and Fatih Sultan Mehmet (Second Bosporus) suspension bridges built in Istanbul, Turkey, are selected as numerical examples. Both bridges have almost the same span. While Boğaziçi Suspension Bridge has inclined hangers, Fatih Sultan Mehmet Suspension Bridge has vertical hangers. Geometric nonlinearity including P-delta effects from self-weight of the bridges is taken into account in the determination of the dynamic behavior of the suspension bridges for near-fault and far-fault ground motions. Near-fault and far-fault strong ground motion records, which have approximately identical peak ground accelerations, of 1999 Chi-Chi, 1999 Kocaeli, and 1979 Imperial Valley earthquakes are selected for the analyses. Displacements and internal forces of the bridges are determined using the finite element method including geometric nonlinearity. The displacements and internal forces obtained from the dynamic analyses of suspension bridges subjected to each fault effect are compared with each other. It is clearly seen that near-fault ground motions are more effective than far-fault ground motion on the displacements and internal forces such as bending moment, shear force and axial forces of the suspension bridges. Copyright Springer Science+Business Media B.V. 2012

Suggested Citation

  • Süleyman Adanur & Ahmet Altunişik & Alemdar Bayraktar & Mehmet Akköse, 2012. "Comparison of near-fault and far-fault ground motion effects on geometrically nonlinear earthquake behavior of suspension bridges," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 64(1), pages 593-614, October.
    • Handle: RePEc:spr:nathaz:v:64:y:2012:i:1:p:593-614
    DOI: 10.1007/s11069-012-0259-5
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    Cited by:

    1. Özlem Çavdar, 2022. "Seismic performance of a high-rise building by using linear and nonlinear methods," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 112(2), pages 1359-1378, June.
    2. Gaohui Wang & Sherong Zhang & Chao Wang & Mao Yu, 2014. "Seismic performance evaluation of dam-reservoir-foundation systems to near-fault ground motions," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 72(2), pages 651-674, June.
    3. Wanpeng Ding & Zhijian Wu & Beilei Zhan & Jian Liu & Jun Bi, 2023. "Analysis of seismic damage of a highway bridge during the 2021 Ms 7.4 earthquake in Maduo County, China," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 117(3), pages 2419-2434, July.
    4. Soumya Gorai & Damodar Maity, 2021. "Numerical investigation on seismic behaviour of aged concrete gravity dams to near source and far source ground motions," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 105(1), pages 943-966, January.

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