[1]汪刚,景立平,陆新宇,等.利用振动台试验确定土-桩体系基础频率的方法对比[J].地震工程与工程振动,2022,42(06):222-230.[doi:10.13197/j.eeed.2022.0624]
　WANG Gang,JING Liping,LU Xinyu,et al.Comparison of methods for determining fundamental frequency of soil-pile system by shaking table test[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2022,42(06):222-230.[doi:10.13197/j.eeed.2022.0624]
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利用振动台试验确定土-桩体系基础频率的方法对比
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《地震工程与工程振动》[ISSN:/CN:]

卷:
42
期数:
2022年06期
页码:
222-230
栏目:
研究论文
出版日期:
2022-12-31

文章信息/Info

Title:
Comparison of methods for determining fundamental frequency of soil-pile system by shaking table test
作者:
汪刚1; 2;  景立平1; 2; 3;  陆新宇1; 2;  齐文浩1; 2
1. 中国地震局工程力学研究所 地震工程与工程振动重点实验室, 黑龙江 哈尔滨 150080;
2. 地震灾害防治应急管理部重点实验室, 黑龙江 哈尔滨 150080;
3. 防灾科技学院, 河北 三河 065201
Author(s):
WANG Gang1; 2;  JING Liping1; 2; 3;  LU Xinyu1; 2;  QI Wenhao1; 2
1. Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China;
2. Key Laboratory of Earthquake Disaster Mitigation, Ministry of Emergency Management, Harbin 150080, China;
3. Institute of Disaster Prevention, Sanhe 065201, China
关键词:
振动台试验; 土-桩动力相互作用体系; 基础频率
Keywords:
shaking table test; dynamic soil-pile interaction system; fundamental frequency
分类号:
TU473.1
DOI:
10.13197/j.eeed.2022.0624
摘要:
为了在振动台试验中确定土-桩体系的基础频率，采用环境噪声、人工白噪声、正弦波以及人工地震动等4种激励形式，根据各种激励方式的特点，分别选用适当的计算方法对试验结果进行了分析。计算结果表明：通过选用合理的分析方法，各种激励方式作用下均能得到体系基础频率的可靠估计，环境噪声激励方式实施最为简单，但需要对其试验结果进行大量的统计分析工作；正弦激励方式的数据处理最为简单，但其激励实施较为耗时，且对体系的扰动较大；人工白噪声激励和人工地震动激励是较为推荐的激励方式，在实施中应注意人工白噪声的生成质量和人工地震动设计反应谱的选取合理性，以提高试验结果的可靠性。
Abstract:
In order to determine the fundamental frequency of soil-pile system in shaking table test, four excitation forms such as environmental noise, artificial white noise, sinusoidal wave and artificial ground motion are adopted. According to the characteristics of various excitation methods, appropriate calculation methods are selected to analyze the test results. The calculation results show that reliable estimation of the fundamental frequency of the system can be obtained by selecting reasonable analysis methods for each excitation mode. The implementation of environmental noise excitation is the simplest, but it needs a lot of statistical analysis of the test results. Data processing for sinusoidal excitation is the simplest, but the implementation of this excitation is time-consuming and has a large disturbance to the system. Artificial white noise and artificial ground motion excitation are more recommended methods. In the implementation, attention should be paid to the generation quality of artificial white noise and the rationality of design response spectrum of the artificial ground motion, so as to improve the reliability of test results.

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备注/Memo

备注/Memo:
收稿日期:2021-12-30;改回日期:2022-03-29。
基金项目:中国地震局工程力学研究所基本科研业务费专项资助项目(2019B10);国家科技重大专项资助项目(2018ZX06902016)
作者简介:汪刚(1989-),男,博士研究生,主要从事土-结构动力相互作用研究.E-mail:wanggang198903@126.com
通讯作者:景立平(1963-),男,研究员,博士,主要从事岩土地震工程研究.E-mail:jlp_iem@163.com
更新日期/Last Update: 1900-01-01