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Seismic Behavior of Inverted T-type Wall under Earthquake Part I : Verification of the Numerical Modeling Techniques

역T형 옹벽의 지진시 거동특성 Part I : 수치해석 모델링 기법의 검증

  • Lee, Jin-sun (Department of Civil and Environmental Engineering, Wonkwang University)
  • 이진선 (원광대학교 토목환경공학과)
  • Received : 2015.08.27
  • Accepted : 2015.10.12
  • Published : 2016.01.01

Abstract

Permanent deformation plays a key role in performance based earthquake resistant design. In order to estimate permanent deformation after earthquake, it is essential to secure reliable response history analysis(RHA) as well as earthquake scenario. This study focuses on permanent deformation of an inverted T-type wall under earthquake. The study is composed of two separate parts. The first one is on the verification of RHA and the second one is on an effect of input earthquake motion. The former is discussed in this paper and the latter in the companion paper. The verification is conducted via geotechnical dynamic centrifuge test in prototype scale. Response of wall stem, ground motions behind the wall obtained from RHA matched pretty well with physical test performed under centrifugal acceleration of 50g. The rigorously verified RHA is used for parametric study to investigate an effect of input earthquake motion selection in the companion paper.

Keywords

References

  1. Mononobe N, Matsuo H. On the determination of earth pressures during earthquakes. Proceedings of the world engineering conference. 1929;274-280.
  2. Okabe S. General theory of earth pressure. J Jpn Soc Civ Eng. 1926;12(1).
  3. Green RA, Olgun CG. Response and modeling of cantilever retaining walls subjected to seismic motions. Computer-Aided Civil and Infrastructure Engineering. 2008;23:309-322. https://doi.org/10.1111/j.1467-8667.2007.00538.x
  4. Pathmanathan R, Franchin P, Lai C, Pinto P. Numerical modelling of seismic response of cantilever earth-retaining structures. Proceedings of the 4th International Conference on Earthquake Geotechnical Engineering. c2007.
  5. Mikola RG, Sitar N. Seismic earth pressures on retaining structures in cohesionless soils. UCB/GT [Internet]. Available from : http://berkeley.edu/documents/elib/www/documents/GEOTECH/UCB-GT-2013-01.pdf
  6. Lee JS. Seismic behavior of inverted T-type wall under earthquake Part II : Effect of input earthquake motion. EESK J Earthquake Eng. in print.
  7. Jo SB, Ha JG, Yoo M, Choo YW, Kim DS. Seismic behavior of an inverted T-shape flexible retaining wall via dynamic centrifuge tests. Bull Earthq Eng. 2014;12(2):961-80. https://doi.org/10.1007/s10518-013-9558-9
  8. Kim DS, Kim NR, Choo YW, Cho GC. A newly developed state-ofthe-art geotechnical centrifuge in Korea. J Civ Eng KSCE. 2013;17(1):77-84. https://doi.org/10.1007/s12205-013-1350-5
  9. Kim DS, Lee SH, Choo YW, Perdriat J. Self-balanced earthquake simulator on centrifuge and dynamic performance verification. J Civ Eng KSCE. 2013;17(4):651-61. https://doi.org/10.1007/s12205-013-1591-3
  10. Ilankatharan M, Kutter B. Modeling input motion boundary conditions for simulations of geotechnical shaking table tests. Earthquake spectra. 2010;26(2):349-369 https://doi.org/10.1193/1.3383214
  11. Lee JS. Appropriate input earthquake motion for the verification of seismic response analysis by geotechnical dynamic centrifuge test. EESK J Earthquake Eng. 2013;17(5):209-217 https://doi.org/10.1080/13632469.2012.707346
  12. Kuhlemeyer RL, Lysmer J. Finite element method accuracy for wave propagation problems. J Soil Mech Found Eng Div ASCE. 1973;99(5):421-7.
  13. Lysmer J, Kuhlemeyer RL. Finite dynamic model for infinite media. J Eng Mech. 1969;95(4):859-77.
  14. Mejia LH, Dawson EM. Earthquake deconvolution for FLAC. Proceedings of 4th International FLAC Symposium on Numerical Modeling in Geomechanics; 2006; Madrid, Spain. 4-10.
  15. FLAC (Fast Lagrangian Analysis of Continua) 3D user's manual-dynamic analysis. Itasca Consulting Group. c2011.
  16. Hardin BO, Drnevich VP. Shear modulus and damping in soils: design equation and curves. J Soil Mech Found Eng Div ASCE. 1972;98(7):667-91.
  17. Masing G. Eigenspannungen und verfestigung beim messing. Proceedings of the second international congress of applied mechanics. 1926;332-35.
  18. Lee JS, Chae HG, Kim DS, Jo SB, Park HJ. Numerical analysis of inverted T-type wall under seismic loading. Computers and geotechnics. 2015;66:85-95. https://doi.org/10.1016/j.compgeo.2015.01.013