期刊论文

Frequency Response Characteristics and Frequency-domain Analysis in Low-strain Dynamic Testing of Piles

中文

中南林学院学报

Journal of Central South Forestry University

1673-923X

2006

16

6

59-64

10.14067/j.cnki.1673-923x.2006.06.012

中南林业科技大学***基金项目“弹性波散射理论与应用研究”（编号0115）.

本校为第一机构

动态测试与静态测试最大的区别在于动态测试包含了对多种频率成分的动态信号记录问题.频域分析是时域分析的一种必要的、有益的补充,能够更好地指导我们的现场测试,帮助我们选择更好的安装方法.在对基桩动态响应的频谱特性进行分析基础上,讨论了基桩低应变动测曲线的频域分析方法,并介绍了计算桩底土的单位刚度和桩身动刚度的方法.

The main difference between dynamic testing and static testing is that dynamic testing records various frequency components of dynamic signals, It is pointed out that frequency-domain analysis is a necessary, beneficial and useful complement to time-domain analysis. It contributes to direct field measurements and helps us to select the method of erection of sensors. Based on an analysis of the spectral characteristics of dynamic response of piles, this paper introduces the analyzing method for frequency domain, and finally discus...