摘要
利用系统分析原理 ,从s域对桩土系统进行分析 ,得到系统传递函数、速度导纳响应函数。从缺陷桩的桩土系统参数模型出发 ,推导出缺陷桩速度导纳响应模型 ,研制了Matlab分析计算软件 ,得到缺陷桩的速度导纳曲线存在大峰夹小峰的特征 ,提出了一种直观的判断基桩完整性的方法。根据这一特征 ,得到小峰与大峰之比与缺陷程度之间的关系曲线 。
With the system analysis theory, transfer function and velocity mobility response in s domain are deduced. According to the pile-soil parameter model, the mobility of concrete defective pile is gained, and based on it, a program of Matlab language is worked out to simulate mobility response of a defective pile. A simple method is provided to determine the integrity of the shaft. The relation between ratio of peaks and degree of defect is worked out, then a method of quantity analysis in frequency domain is proposed.
出处
《建筑结构》
CSCD
北大核心
2004年第12期24-26,共3页
Building Structure
基金
高等学校博士学科基金项目 ( 2 0 0 3 0 0 5 60 43 )
