中文核心期刊
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中国科技核心期刊
RCCSE中国核心学术期刊
重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2006, Vol. 25 ›› Issue (2): 28-30.

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有限元分析中三维体元和梁元的非节点连接

王家林1,2，陈山林1，肖盛燮2   

  1. 1.重庆大学土木工程学院，重庆 400045；2.重庆交通学院土木建筑学院，重庆 400074
  • 收稿日期:2004-12-07 修回日期:2015-05-18 出版日期:2006-04-15 发布日期:2015-05-18
  • 作者简介:王家林(I968—)，男，重庆万州人，副教授，博士生，从事钢筋砼结构有限元分析研究

Non-nodal connection of brick and beam elements in finite element analysis

WANG Jia-Lin 1，2，CHEN Shan-lin1，XIAO Sheng-xie2   

  1. 1.School of Civil Engineering，Chongqing University,Chongqing 400045，China；2.School of Civil Engineering & Architecture，Chongqing Jiaotong University,Chongqing 400074，China
  • Received:2004-12-07 Revised:2015-05-18 Online:2006-04-15 Published:2015-05-18

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摘要： 在对三维体元任一点移动和转动分析的基础上，导出了体元和梁元恰当连接应满足的多点约束方程，通 过直接代入梁元的单元分析进行自由度替换实现了体粱的良好连接．本文方法对体元和梁元的连接形式具有较 强的适应能力，应用方便，算例表明具有较高的数值精度．

关键词: 有限元, 三维体元, 粱元, 多点约束方程

Abstract: A method is presented for connecting three-dimensioral brick and beam elements．Based on the analysis of the displacement and rotation of an arbitrary point within a brick clement，a series of multipoint constraint equations are raised to reflect the proper connections of brick and beam elements．The multipoint constraint equations are realized by their introduction into the beam element analysis process and the replacement of the beam element's degrees of freedom with those of the brick element．This method suits a variety of connections between such two types of elements．A numerical example demonstrates the accuracy and feasibility of the method．

Key words: finite element method, three-dimensional brick element, beam element, multipoint constraint equations

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