Structural Engineering and Mechanics

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Numerical studies on the effects of the lateral boundary on soil-structure interaction in homogeneous soil foundations

  • Li, Z.N. (College of Civil Engineering, Hunan University, College of the Architectural and Civil Engineering, Wenzhou University) ;
  • Li, Q.S. (Department of Building and Construction, City University of Hong Kong) ;
  • Lou, M.L. (State Key Laboratory for Disaster Reduction in Civil Engineering, Research Institute of Structural Engineering and Disaster Reduction, Tongji University)
  • Received : 2004.07.22
  • Accepted : 2005.04.01
  • Published : 2005.07.10
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Abstract

In this paper, the finite element method is applied to investigate the effect of the lateral boundary in homogenous soil on the seismic response of a superstructure. Some influencing factors are presented and discussed, and several parameters are identified to be important for conducting soil-structure interaction experiments on shaking tables. Numerical results show that the cross-section width L, thickness H, wave propagation velocity and lateral boundaries of soil layer have certain influences on the computational accuracy. The dimensionless parameter L/H is the most significant one among the influencing factors. In other words, a greater depth of soil layer near the foundation should be considered in shaking table tests as the thickness of the soil layer increases, which can be regarded as a linear relationship approximately. It is also found that the wave propagation velocity in soil layer affects the numerical accuracy and it is suggested to consider a greater depth of the soil layer as the wave propagation velocity increases. A numerical study on a soil-structure experimental model with a rubber ring surrounding the soil on a shaking table is also conducted. It is found the rubber ring has great effect on the soil-structure interaction experiments on shaking table. The experimental precision can be improved by reasonably choosing the elastic parameter and width of the rubber ring.

Keywords

Acknowledgement

Supported by : City University of Hong Kong

References

  1. Anandarajah, A., Rashidi, H. and Arulanandan, K. (1995), 'Elasto-plastic [mite element analyses of a soilstructure system under earthquake excitations', Computers and Geotechnics, 17, 301-325 https://doi.org/10.1016/0266-352X(95)99215-D
  2. Aviles, J. and Suarez, M. (2002), 'Effective periods and damping of building-foundation systems including seismic wave effects', Eng. Struct., 24, 553-562 https://doi.org/10.1016/S0141-0296(01)00121-3
  3. Dominguez, J. (1978), 'Dynamic stiffness of rectangular foundation', Report No.R78-20, Dept. of Civil Engineering, MIT
  4. Genes, M.C. and Kocak, S.A. (2002), 'Combined element based soil-structure interaction model for large-scale systems and applications on parallel platforms', Eng. Struct., 24, 1119-1131 https://doi.org/10.1016/S0141-0296(02)00042-1
  5. Huang, W.X., Bauer, E. and Sloan, S.W. (2003), 'Behaviour of interfacial layer along granular soil-structure', Struct. Eng. Mech., 15(3), 315-329 https://doi.org/10.12989/sem.2003.15.3.315
  6. Kocak, S. and Mengi, Y.A. (2000), 'Simple soil-structure interaction model', Applied Mathematical Modelling, 24, 607-635 https://doi.org/10.1016/S0307-904X(00)00006-8
  7. Li, Q.S., Fang, J.Q. and leary, A.P. (1998), 'Calculation of vertical dynamic characteristics of tall buildings with viscous damping', Int. J Solid Struct., 35(24), 3165-3176 https://doi.org/10.1016/S0020-7683(98)00021-3
  8. Liao, Z.P. (1987), 'Studies on the artificial boundary in the transient elastic wave analysis', Earthquake Engineering and Engineering Vibration, 7(3), 12-23. (in Chinese)
  9. Liu, J., Xiao, H.B., Tang, J. and Li, Q.S. (2004), 'Analysis of load-transfer of single pile in layered soils', Computer and Geotechnics, 31, 127-135 https://doi.org/10.1016/j.compgeo.2004.01.001
  10. Lou, M.L. and Lin, G (1986), 'Wave reflection effect of the artificial boundary in the viscoelastic soil foundation', J of Hydraulic Engineering, 6, 20-30. (in Chinese)
  11. Lou, M.L., Wang, W.J., Zhu, T. and Ma, H.C. (2000), 'Soil lateral boundary effect in shaking table model test of soil-structure system', Earthquake Engineering and Engineering Vibration, 20(4), 30-36. (in Chinese)
  12. Lysmer, J. and Kulemeyer, R.L. (1969), 'Finite dynamic model for infinite media', J. Eng. Mech., ASCE, 95, 759-877
  13. Wolf, J.P. (1985), Dynamic Soil-Structure Interaction, Prentice-Hall Inc., Englewood Cliffs, N. J
  14. Zhang, C. (1991), 'Infinite boundary elements for dynamic problems of 3-D halfspace', Int. J. Num. Meth. Eng., 30,447-462

Cited by

  1. Analysis of wave propagation and soil–structure interaction using a perfectly matched layer model vol.81, 2016, https://doi.org/10.1016/j.soildyn.2015.10.008
  2. Experimental Study on the Seismic Response of Subway Station in Soft Ground vol.11, pp.05, 2017, https://doi.org/10.1142/S1793431117500208