Structural Engineering and Mechanics

  • 제8권4호
  • /
  • Pages.411-419
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  • 1999
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Effect of base isolation on the seismic response of multi-column bridges

  • Saiidi, M. (Civil Engineering Department, University of Nevada) ;
  • Maragakis, E. (Civil Engineering Department, University of Nevada) ;
  • Griffin, G. (Exeltech Engineering)
  • 발행 : 1999.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

A nonlinear model for time-step analysis of bridges subjected to two orthogonal horizontal components of earthquake motions was developed. The focus of the study was on elastomeric isolators with or without lead cores. The hysteretic behavior of the isolators, the columns, abutments, and shear keys was taken into account. The nonlinear analysis showed that, contrary to linear theory prediction, the use of isolators does not necessarily increase the displacement of the superstructure. Furthermore, it was shown that properly designed isolators can reduce the ductility demand in RC bridge columns substantially.

키워드

참고문헌

  1. Blakely, R.W.G. (1982), "Application of base isolation to seismic resistant bridges", Comparison of United States and New Zealand Practices for Highway Bridges, ATC-12, August, 77-82.
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  3. Buckle, I.G. and Mayes, R.L. (1989), "The application of seismic isolation to bridges", Seismic Engineering: Research and Practice, Proceedings of Structures Congress, 633-642.
  4. Fenves, G., Whittaker, A., Huang, W.-H., Clark, P. and Mahin, S. (1998), "Analytical and testing of seismically isolated bridges under bi-axial excitation", The 5th Caltrans Seismic Research Workshop, Session 6, Sacramento, California, June.
  5. Foutch, D. and Chen, K.-H. (1994), "Optimal design strategies for base-isolated bridges" , Proceedings of the Tenth US-Japan Bridge Engineering Workshop, Lake Tahoe, Nevada, Session ix, May.
  6. Griffin, G., Saiidi, M. and Maragakis, E. (1995), "Nonlinear seismic response analysis of isolated bridges with multiple columns", Civil Engineering Department, Report No. CCEER-95-6, University of Nevada, Reno, November.
  7. Jiang, Y. and Saiidi, M. (1990), "4-spring element for cyclic response of R/C columns", Journal of Structural Engineering, ASCE, 116(4), April, 1018-1029. https://doi.org/10.1061/(ASCE)0733-9445(1990)116:4(1018)
  8. Saiidi, M. (1982), "Hysteresis models for reinforced concrete" , Journal of the Structural Division, ASCE, 108(ST5), May, 1077-1085.
  9. Sultan, M., Sheng, L.-H. and Onesto, A. (1998), "Summary of FHWA/CALTRANS/HITEC seismic isolator and energy dissipator evaluation program for highway bridges", The 5th Caltrans Seismic Research Workshop, Session 6, Sacramento, California, June.
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피인용 문헌

  1. Seismic Isolation of Bridges with Double Variable Frequency Pendulum Isolator vol.15, pp.2, 2012, https://doi.org/10.1260/1369-4332.15.2.185
  2. Implementation of smart-passive dampers combined with double concave friction pendulum devices to retrofit an existing highway viaduct exploiting the seismic early warning information vol.120, 2016, https://doi.org/10.1016/j.engstruct.2016.04.026
  3. Seismic response of isolated bridges with soil–structure interaction vol.23, pp.4, 2003, https://doi.org/10.1016/S0267-7261(03)00020-4
  4. Seismic Response of Isolated Bridges vol.9, pp.2, 2004, https://doi.org/10.1061/(ASCE)1084-0702(2004)9:2(156)
  5. Optimal dynamic inversion-based semi-active control of benchmark bridge using MR dampers vol.16, pp.5, 2009, https://doi.org/10.1002/stc.325
  6. Application of Micro-GA for optimal cost base isolation design of bridges subject to transient earthquake loads vol.41, pp.5, 2010, https://doi.org/10.1007/s00158-009-0470-5
  7. Benchmark structural control problem for a seismically excited highway bridge-Part I: Phase I Problem definition vol.16, pp.5, 2009, https://doi.org/10.1002/stc.301
  8. Effects of isolation on the seismic response of bridges designed for two different soil types vol.9, pp.2, 2011, https://doi.org/10.1007/s10518-010-9225-3
  9. Soil-structure interaction in the seismic response of an isolated three span motorway overcrossing founded on piles vol.41, 2012, https://doi.org/10.1016/j.soildyn.2012.05.016
  10. Effects of the nonlinear behavior of lead-rubber bearings on the seismic response of bridges vol.1, pp.2, 2010, https://doi.org/10.12989/eas.2010.1.2.215
  11. Construction stages analyses using time dependent material properties of concrete arch dams vol.14, pp.5, 2014, https://doi.org/10.12989/cac.2014.14.5.599
  12. Seismic performance and design of bridge piers with rocking isolation vol.73, pp.4, 2020, https://doi.org/10.12989/sem.2020.73.4.447