用半解析元法分析结构─群桩─土系统自振特性  

Analysis of Natural Vibration of Structure-Pile Group-Soil system by Semi-Analytical Method

作　　者：翟桐[1] 熊建国[1] 

机构地区：[1]国家地震局工程力学研究所

出　　处：《土工基础》1996年第1期21-25,共5页Soil Engineering and Foundation

摘　　要：本文将无限成层地基、群桩及其上部结构作为一个系统，用半解析无法分析其自振特性，给出了一些考虑它们之间相互作用情况下系统自振特性的一般规律。In this paper, a semi-analytical method for the analysis of the natural vibration of structure-pile group soil system is presented. In the analysis, the soil is considered to be a infinite leyer medium. The influence of the period of natural vibration of the structure , soil charactristic including different moduli and layering and plie number on the natural vibration of the system is analysised, and some genaral features obtailled from the analysis are pointed out.The number of degree of freedom used in the analysis is considerably reduced comparing to finite element method.

关 键 词：群桩 半解析元法 土 自振特性 

分 类 号：TU473.1[建筑科学—结构工程]