Paper Title:
The Comparative Numerical Experiments of Frequency Features for Earthquake Responds in Liquefiable Field and Elastic Field
  Abstract

The natural frequency characteristics of field has the remarkable influence to the field acceleration response. This paper realized the free field liquefaction numerical simulation experiment based on the Finn model, simultaneously performed the elastic field acceleration response comparative experiment, and has studied the acceleration response frequency features question of liquefiable field. The results indicated that, the acceleration response essential feature of liquefaction field is low-frequency amplification, high frequency reduction. The low-frequency amplification effect is higher than the high frequency reduction effect obviously. The acceleration is amplified in early time and is weakened in later period during the liquefaction process. The acceleration amplification in liquefiable field is remarkable for inputting low frequency waves, the acceleration response is 13 times to input value. Elastic fields also have “low-frequency amplification, high-frequency deflation features”, However, this feature of elastic field is not significant as liquefiable field. At the lower position of liquefiable field acceleration amplification is the largest, at the surface of elastic field acceleration amplification is maximum. The underground structure seismic design in liquefiable field was carried on as in the conventional elastic field, then caused the underground structure to be at the dangerous condition. Researching results will provide a theoretical and experimental basis for the dynamic analysis of underground structures passing through liquefaction soil layer.

  Info
Periodical
Edited by
Xuejun Zhou
Pages
1531-1538
DOI
10.4028/www.scientific.net/AMM.90-93.1531
Citation
J. P. He, W. Z. Chen, "The Comparative Numerical Experiments of Frequency Features for Earthquake Responds in Liquefiable Field and Elastic Field", Applied Mechanics and Materials, Vols. 90-93, pp. 1531-1538, 2011
Online since
September 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Pei Zhen Li, Jing Meng, Peng Zhao, Xi Lin Lu
Abstract:Shaking table test on soil-structure interaction system in harder site condition is presented briefly in this paper. Three-dimensional finite...
1619
Authors: Rong Jian Li, Yu Zhen Yu, Yu Jie Jiao
Chapter 2: Structural and New Functional Materials
Abstract:In order to study the characteristic of seismic response of the reinforced slope subjected to earthquake, the seismic response spectrum of...
315
Authors: Fei Dong, Jun Dong, Wei Ze Sun
Chapter 3: Geotechnical and Structural Engineering
Abstract:Based on the background of a subway construction project, deterioration characteristics of the existed subway tunnels under long-term train...
1005
Authors: Jing Bo Liu, Dong Dong Zhao, Wen Hui Wang, Xiang Qing Liu
Chapter 1: Geological, Geotechnical and Building Engineering
Abstract:Two geotechnical centrifuge model tests of a soil-structure system with different burial depths are performed to investigate the interaction...
372