摘要
从理论上推导建立考虑节点局部柔度的焊接钢管结构模型的梁单元计算公式,基于该公式改进传统梁单元计算程序,通过与三维有限元建模分析的对比,验证所提理论的准确性和可靠性,研究节点局部柔度对静力性能的影响。
This study presents a simplified analytical model to analyze the static behavior for a tubular structure with LJF. The presented model simplifies a tubular structure into a frame model consisted of beam elements which considering the LJFs at the connections between any two elements. Theoretical equations of the simplified analytical model are deduced. Through comparison with finite element results, the accuracy and reliability of the presented model are evaluated.
作者
李东升
LI Dongsheng(School of Civil Engi., Tongji Univ., Shanghai 20092, Chin)
出处
《低温建筑技术》
2018年第4期41-45,共5页
Low Temperature Architecture Technology
关键词
局部柔度
有限元
梁单元
管结构
数值模拟
local joint flexibility
finite element method
beam element
tubular structure
numerical simulation
