一维土层非线性地震反应分析的解析递推格式法

• 地球物理·勘查技术·工业测试 • 上一篇下一篇

一维土层非线性地震反应分析的解析递推格式法

甘杨¹,李凡²,李大华^2，3

1.吉林省城乡规划设计研究院,长春 130061；2.天津城市建设学院,天津 300381；3.天津市地震局,天津 300201

收稿日期:2005-10-18 修回日期:1900-01-01 出版日期:2006-07-26 发布日期:2006-07-26
通讯作者: 甘杨

Analytical Recursion Scheme Method of the Nonlinear Earthquake Response Analysis of One-Dimension Soil Layer

GAN Yang¹，LI Fan²，LI Da-hua^2，3

1.Urban and Rural Planning and Research Institute of Jilin Province，Changchun 130061，China；2.Tianjin Urban Construction Institute, Tianjin 300381，China；3.Tianjin Seismological Bureau, Tianjin 300201，China

Received:2005-10-18 Revised:1900-01-01 Online:2006-07-26 Published:2006-07-26
Contact: GAN Yang

摘要/Abstract

摘要： 引入“结构动力学数值分析解析递推格式法”求解软土地基地震反应分析问题。就一维地基非线性地震反应分析问题，将解析递推格式方法与等效线性化方法在各种场地土的计算结果进行了比较，结果表明：(1) 对软土层地震反应分析时，两种方法计算结果差别较大；（2）入射波幅值较强时，两种方法计算结果差别较大；（3）对于中等硬度土层、入射波幅值较弱时，计算结果相似, 并验证了该方法的实用有效性。

关键词: 软土地基, 一维土层, 非线性地震反应, 数值分析, 解析递推格式

Abstract: A digital algorithmanalytical recursion scheme method for the structural dynamics to solve the earthquake response problem of the soft clay foundation is put forwarded. From the outcomes of the research, the analytical recursion scheme method can obtain more accurate calculating results. It is a general numerical algorithm in nonlinear vibration problem, especially suits for the seismic response analysis of soft clay foundation. For onedimension earthquake response analysis of soft clay foundation, a more sufficient comparison is taken between the analytical recursion scheme method and the equivalent linear method for the result of account in manifold ground. The outcomes show: （1） In the soft soil seismic response analysis, the difference between these two methods is relatively greater;（2） When the value of the inputting earthquake waves are greater, the difference between these two methods is relatively greater; （3）For the medium hardness soil layer earthquake waves was stronger, the two methods got similar results. The validity of the proposed analysis method and computer program has been verified.

Key words: soft clay foundation, onedimension soil layer, nonlinear earthquake response, digital algorithm, analytical recursion scheme

中图分类号:

TU71.8

甘杨,李凡,李大华. 一维土层非线性地震反应分析的解析递推格式法[J]. J4, 2006, 36(04): 631-635.

GAN Yang，LI Fan，LI Da-hua. Analytical Recursion Scheme Method of the Nonlinear Earthquake Response Analysis of One-Dimension Soil Layer[J]. J4, 2006, 36(04): 631-635.

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