Comparative Study on Influence of Different Damping Values in Soil-layer Seismic Response Analysis

马俊玲; 丁海平

doi:10.13409/j.cnki.jdpme.2013.05.005

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Comparative Study on Influence of Different Damping Values in Soil-layer Seismic Response Analysis

更新时间：2025-12-11

- Comparative Study on Influence of Different Damping Values in Soil-layer Seismic Response Analysis
- Vol. 33, Issue 5, Pages: 517-523+547(2013)
- 作者机构：
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- DOI：10.13409/j.cnki.jdpme.2013.05.005
  CLC： U435
- Published：2013
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[1]马俊玲,丁海平.土层地震反应分析中不同阻尼取值的影响比较[J].防灾减灾工程学报,2013,33(05):517-523+547.

马俊玲, 丁海平. Comparative Study on Influence of Different Damping Values in Soil-layer Seismic Response Analysis[J]. 2013, 33(5): 517-523+547.
[1]马俊玲,丁海平.土层地震反应分析中不同阻尼取值的影响比较[J].防灾减灾工程学报,2013,33(05):517-523+547. DOI： 10.13409/j.cnki.jdpme.2013.05.005.

马俊玲, 丁海平. Comparative Study on Influence of Different Damping Values in Soil-layer Seismic Response Analysis[J]. 2013, 33(5): 517-523+547. DOI： 10.13409/j.cnki.jdpme.2013.05.005.

摘要

由于时域、频域分析中阻尼的选取方法不同

其计算结果有时会有很大的差别。通过对不同厚度的单一均匀土层和多层土层在不同地震动作用下的反应分析

比较了目前常用的不同Rayleigh阻尼系数的时域结果和频域等效线性化结果

指出影响阻尼系数的不同目标频率的选取是时域计算结果异同的主要原因

探讨了由频域分析中的滞回阻尼比确定时域分析中的Rayleigh阻尼系数的方法

从而为利用滞回阻尼在时域分析中进行土层地震反应分析提供了依据。为了减少时域与频域计算结果的误差

最好采用完整的Rayleigh阻尼公式

且目标频率选取土层的第1和第3阶自振频率。

Abstract

Because methods of damping selection are different

therefore there will be a great difference in the results of time domain analysis and frequency domain analysis.In this paper

the results of time domain analysis and frequency domain equivalent linear analysis were compared for single layer homogeneous soils with different thicknesses and multi-layered soil under different ground motions

and the results show that the selection of different target frequencies influencing viscous damping coefficient is the main reason leading to different results in time domain analysis.How to evaluate the Rayleigh damping coefficient in time domain analysis from the hysteretic damping ratio in frequency domain analysis was also discussed so that hysteretic damping can be used more reasonably in time domain site response analysis.In order to reduce the differences of the results of time domain analysis and frequency domain analysis

we had better use complete Rayleigh damping formulation and the first and the third natural frequencies.

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references

瑞利阻尼系数确定方法对高土石坝地震反应的影响研究 [J]. 邹德高,徐斌,孔宪京. 岩土力学 . 2011(03)

滞后阻尼在土层时域分析中的应用 [J]. 楼梦麟,潘旦光. 同济大学学报(自然科学版) . 2004(03)

土层地震反应的数值模拟 [J]. 丁海平,周正华. 世界地震工程 . 1998(03)

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A simple numerical absorbing layer method in elastodynamics [J] . Comptes rendus - Mécanique . 2009 (1)

SOIL DAMPING FORMULATION IN NONLINEAR TIME DOMAIN SITE RESPONSE ANALYSIS [J] . Duhee Park,Youssef M. A. Hashash. Journal of Earthquake Engineering . 2004 (2)

Equivalent linear method considering frequency dependent characteristics of stiffness and damping [J] . Nozomu Yoshida,Satoshi Kobayashi,Iwao Suetomi,Kinya Miura. Soil Dynamics and Earthquake Engineering . 2002 (3)

Viscous damping formulation and high frequency motion propagation in non-linear site response analysis [J] . Youssef M.A. Hashash,Duhee Park. Soil Dynamics and Earthquake Engineering . 2002 (7)

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