摘要
基于通用模型弹性地基梁及基本方程,通过解析方法,精确求解四阶微分方程,得到通用模型下弹性地基梁的挠度控制方程,并分析不同工况下弹性地基梁的挠度系数及控制方程,可用于各类弹性地基梁的内力变形分析,为构造解有限单元的位移形函数提供依据。
Based on the general model of elastic foundation beam and the fundamental equations,the fourth-order differential equation is solved accurately by analytical method and the deflection control equation is obtained.The deflection parameters and control equations of elastic foundation beam are analyzed under different load conditions.According to the results,the deformation of all kinds of elastic foundation beams could be calculated.And a vital foundation is built for constructing the displacement shape functions of finite elements.
作者
李潇
罗双
曹琼琼
施旭栋
蒋秀根
LI Xiao;LUO Shuang;CAO Qiongqiong;SHI Xudong;JIANG Xiugen(College of Water Resources&Civil Engineering,China Agricultural University,Beijing 100083,China;National Agricultural Exhibition Center(China Agricultural Museum),Beijing 100125,China;Department of Infrastructure,Chinese Academy of Agricultural Sciences,Beijing 100081,China;China Railway Service Co.,Ltd,Beijing 100844,China;Sinomach TDI International Engineering Co.,Ltd,Beijing 100083,China)
出处
《建筑结构》
CSCD
北大核心
2021年第S01期1910-1913,共4页
Building Structure
关键词
弹性地基梁
通用模型
挠度方程
变形
elastic foundation
general model
deflection equation
deformation
