Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Structural Engineering and Mechanics Volume 20, Number 4, July10 2005 , pages 421-434 DOI: https://doi.org/10.12989/sem.2005.20.4.421 |
|
|
|
Numerical studies on the effects of the lateral boundary on soil-structure interaction in homogeneous soil foundations |
||
Z. N. Li, Q. S. Li and M. L. Lou
|
||
| 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. | ||
| Key Words | ||
| soil-structure interaction; finite element method; earthquake engineering; shaking table test. | ||
| Address | ||
| Z. N. Li; College of Civil Engineering, Hunan University, Changsha, Hunan, 410082, China College of the Architectural and Civil Engineering, Wenzhou University, Wenzhou, 325027, China Q. S. Li; Department of Building and Construction, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China M. L. Lou; State Key Laboratory for Disaster Reduction in Civil Engineering, Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai 200092, China | ||