摘要
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 discusses a computing method for calculating the dynamic stiffness of piles.
出处
《中南林学院学报》
CSCD
北大核心
2006年第6期59-64,共6页
Journal of Central South Forestry University
基金
中南林业科技大学引进人才基金项目"弹性波散射理论与应用研究"(编号0115)
关键词
土建工程
基桩检测
低应变
反射波法
频域分析
时域分析
civil engineering
pile detection
low-strain
reflected wave method
frequency-domain analysis
tlme-domaln analysis
