›› 2017, Vol. 38 ›› Issue (3): 685-965.doi: 10.16285/j.rsm.2017.03.010

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Time-frequency analysis on amplification of seismic ground motion

WU Zuo-ju1, ZHANG Jian-jing2, WANG Zhi-jia2, WU Xing-xu2, WANG Ming-yuan3   

  1. 1. Sichuan Institute of Building Research, Chengdu, Sichuan 610081, China; 2. School of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China; 3. China Electric Power Construction Company, East China Investigation and Design Institute Co. Ltd., Hangzhou, Zhejiang 310014, China
  • Received:2015-04-20 Online:2017-03-11 Published:2018-06-05
  • Supported by:

    This work was supported by the National Defense Basic Scientific Research Program (B0220133003) and the Major Science and Technology Project of China Hydropower Consulting Group (GW-KJ-2011-18).

PDF (Chinese)

1575

Abstract: A large scale shaking table test has been carried out to investigate the amplification effect of ground motion in homogeneous and complex heterogeneous sites. After that, a Fourier transform, time frequency analysis method and subsection time-frequency analysis method are combined to analyze the experimental data. By comparing the experimental results, , the peak of the time curve of the ground motion will be gradually enlarged with the increase of the height of the site when the local vibration propagates in the vertical direction. The frequency component content, the frequency spectrum of the main frequency band, and the distribution of the whole ground motion energy on the time-frequency plane will change greatly with the height of the site and the different layers. The above study concludes a series of PGA peak characteristics, spectral characteristics, distribution characteristics of energy spectrum on time-frequency plane.

Key words: complex heterogeneous site, amplification effect, large-scale shaking table test, Fourier transform, time-frequency analysis

CLC Number: 

  • P 315.9

[1] ZHAO Jiu-bin, LIU Yuan-xue, HE Shao-qi, YANG Jun-tang, BAI Zhun, . Mathematical statistical model of horizontal displacement and rainfall of step deformation landslide in Three Gorges reservoir area [J]. Rock and Soil Mechanics, 2020, 41(S1): 305-311.
[2] QIAO Xiang-jin, LIANG Qing-guo, CAO Xiao-ping, WANG Li-li, . Research on dynamic responses of the portal in bridge-tunnel connected system [J]. Rock and Soil Mechanics, 2020, 41(7): 2342-2348.
[3] LI Xin-ping, BIAN Xing, LUO Yi, LÜ Jun-lin, REN Gao-feng, . Study on attenuation law of blasting vibration propagation of side wall of underground cavern [J]. Rock and Soil Mechanics, 2020, 41(6): 2063-2069.
[4] XIA Kun, DONG Lin, PU Xiao-wu, LI Lu. Earthquake response characteristics of loess tableland [J]. Rock and Soil Mechanics, 2020, 41(1): 295-304.
[5] WU Hong-gang, WU Zhi-xin, XIE Xian-long, PAI Li-fang, . Large-scale shaking table test on micro-pile composite structure on soil slope [J]. Rock and Soil Mechanics, 2019, 40(10): 3844-3854.
[6] WANG Lu-jun, AI Zhi-yong, . Thermo-mechanical coupling response of layered half-space with a buried point heat source [J]. , 2018, 39(6): 2052-2058.
[7] LU Jian-fei, ZHOU Hui-ming, LIU Yang. Reflection-transmission matrix method for dynamic response of transversely isotropic multilayered saturated soil [J]. , 2018, 39(6): 2219-2226.
[8] HUANG Qi-song, CHENG Jiu-long，. Research on stress distribution and failure characteristics of coal mining floor in soft-hard alternant strata [J]. , 2017, 38(S1): 36-42.
[9] YAN Chang-bin. Analysis of cumulative damage effect of rock mass blasting based on acoustic frequency spectrum characters [J]. , 2017, 38(9): 2721-2727.
[10] JIA Yan-chang, XIE Mo-wen, CHANG Sheng-xiang, Lü Fu-xia. A model for evaluation of stability of sliding- and falling-type dangerous rock blocks based on natural vibration frequency [J]. , 2017, 38(7): 2149-2156.
[11] WANG Hua , LU Zheng , YAO Hai-lin , HU Zhi , DONG Qi-peng , . Research on stress dispersion of low embankment on soft foundation with hard crust under traffic loads [J]. , 2015, 36(S2): 164-170.
[12] HE Man-chao ，ZHAO Fei ，ZHANG Yu ，DU Shuai ，GUAN Lei , . Feature evolution of dominant frequency components in acoustic emissions of instantaneous strain-type granitic rockburst simulation tests [J]. , 2015, 36(1): 1-8.
[13] CHEN Xu ，YU Jin ，LI Hong ，CAI Yan-yan ，ZHANG Ya-zhou ，MU Kang . Experimental study of propagation characteristics of acoustic wave in rocks with different lithologies and water contents [J]. , 2013, 34(9): 2527-2533.
[14] ZHU Xing ，XU Qiang ，TANG Ming-gao ，FU Xiao-min ，ZHOU Jian-bin . Experimental study of infrasound wave generated by typical rock fracture [J]. , 2013, 34(5): 1306-1312.
[15] CHEN Shi-hai , QI Gui-feng , BI Wei-guo . Determination of ground vibration load caused by rail transport [J]. , 2012, 33(S2): 311-313.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd