한국농공학회논문집 (Journal of The Korean Society of Agricultural Engineers)

  • 제48권7호
  • /
  • Pages.45-52
  • /
  • 2006
  • /
  • 1738-3692(pISSN)
  • /
  • 2093-7709(eISSN)
한국농공학회 (The Korean Society of Agricultural Engineers)
권호 표지
DOI QR코드

DOI QR Code

Dynamic Analysis of Sand-Clay Layered Ground Considering Viscous Effect of Clay

  • Kim, Yong-Seong (Disaster Management Team, National Emergency Management Agency)
  • 발행 : 2006.12.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

A cyclic viscoelastic-viscoplastic constitutive model for clay is incorporated into an effective stress based seismic response analysis to describe viscous effect of clay layer to sand layer during earthquake. The seismic response against main shock of 1995 Hyogoken Nambu Earthquake is analyzed in the present study. Acceleration responses in both clay layer and just upper liquefiable sand layer are damped due to viscous effect of clay. A cyclic viscoelastic-viscoplastic constitutive model for clay was implemented into a FEM code, and $Newmark{\beta}$ method was employed for the time discretization in the finite element formulation. Seismic responses were simulated by numerical method with recorded data at Port Island, Kobe, Japan. As results of this study, it was found that a cyclic viscoelastic-viscoplastic constitutive model can give good description of dynamic behavior characteristics including viscoelastic effect.

키워드

참고문헌

  1. Di Benedetto, H. and F. Tatsuoka. 1997. Small Strain Behavior of Geornaterials: Modelling of Strain Rate Effects. Soils and Foundations 37(2): 127-138
  2. Hori, M. 1974. Fundamental Studies on Wave Propagation Characteristics Through Soils. Ph. D. Dissertation. Dept. of Civil Engrg, Kyoto Univ. Kyoto. Japan
  3. Kim, Y.-So 2006. Dynamic Behavior Characteristics of Clay in Wide Strain Range Based on Viscoelastic-Viscoplastic Constitutive Model. International Journal of Offshore and Polar Engineering 16(2): 153-160
  4. Kim, Y.-S. and D.-W. Lee. 2004. Evaluation Technique of Seismic Performance on Agricultural Infrastructure. Journal of the Korean Society of Agricultural Engineers 46(4): 75-84. (in Korean)
  5. Oka, F. 1992. A Cyclic Elasto-Viscoplastic Constitutive Model for Clay Based on the Non-Linear Hardening Rule. Proc. 4th Int. Symp. on Numerical Models in Geomechanics 1: 105-114
  6. Oka, F., Kodaka, T. and Y.-S. Kim. 2001. A Cyclic Viscoelastic-Viscoelastic Model for Clay and Its Application to Liquefaction Analysis of Ground. Proc. 10th Int. Symp. on Computer Methods and Advances in Geomechanics 2: 1025-1031
  7. Oka, F., Kodaka, T. and Y.-S. Kim. 2004. A Cyclic Viscoelastic-Viscoplastic Model for Clay and Liquefaction Analysis of Multilayered Ground. International Journal for Numerical and Analytical Methods in Geomechanics 28(2): 131-179 https://doi.org/10.1002/nag.329
  8. Oka, F., Yashima, A., Shibata, T., Kato, M. and Uzuoka, R. 1994. FEM-FDM Coupled Liquefaction Analysis of a Porous Soil Using an Elasto-Plastic Model. Applied Scientific Research 52: 209-245 https://doi.org/10.1007/BF00853951
  9. Oka, F., Yashima, A., Tateishi, A., Taguchi, Y. and Yamashita, S. 1999. A Cyclic ElastoPlastic Constitutive Model for Sand Considering a Plastic-Strain Dependence of the Shear Modulus. Geotechnique 49(5): 661 -680 https://doi.org/10.1680/geot.1999.49.5.661

피인용 문헌

  1. Liquefaction Analysis at Multi-Layered Ground Considering Viscoplastic Effect of Clay vol.55, pp.5, 2013, https://doi.org/10.5389/KSAE.2013.55.5.059