考虑恒荷载作用效应的弹性补偿有限元法

张伟; 杨绿峰; 韩晓凤

doi:10.13204/j.gyjz201003014

考虑恒荷载作用效应的弹性补偿有限元法

doi: 10.13204/j.gyjz201003014

1.
1. 广西大学工程防灾与结构安全教育部重点实验室,南宁530004;
2.
2. 广西电力工业勘察设计研究院,南宁530023

基金项目:

国家自然科学基金项目(50768001,50909021);广西科学基金项目(桂科青0991006,桂科自0991020Z);工程防灾与结构安全教育部重点实验室基金项目(2008TMKF002,2008TMZR002);中国博士后基金(20090460840)项目

详细信息

作者简介:
张伟,男,1977年出生,博士后,教授. E－mail:zh.ei@163.com

中图分类号: TU312
计量
- 文章访问数: 116
- HTML全文浏览量: 12
- PDF下载量: 63
- 被引次数: 0
出版历程
- 收稿日期: 2009-06-30
- 刊出日期: 2010-03-20

ELASTIC COMPENSATION FINITE ELEMENT METHOD CONSIDERING EFFECT OF CONSTANT LOADINGS

1.
1. Key Laboratory of Disaster Prevention and Structural Safety at Guangxi University,Ministry of Education,Nanning 530004,China;
2.
2. Guangxi Investigation,Design and Research Institute for Electric Power Industry,Nanning 530023,China

摘要

摘要: 通过对弹性补偿有限元法的改进,提出可考虑恒荷载和活荷载同时作用的结构塑性极限分析方法。该方法利用弹性补偿有限元法采用迭代法进行极限分析的特点,在活荷载比例加载逼近极限荷载的同时,保持恒荷载作用效应不变,得到考虑恒荷载作用效应的工程结构极限承载力。典型算例的对比分析和影响因素研究表明,算法分析结果是收敛的、准确的和稳定的。
- 塑性极限分析 /
- 弹性补偿有限元法 /
- 恒荷载作用效应
Abstract: This paper deals with the limit analysis of structure system under the combined action of constant loadings and live loadings. An efficient algorithm based on the elastic compensation finite element method ( ECFEM),is presented,in which the action of constant loadings to limit analysis is considered. In the algorithm,the iteration process of ECFEM is improved,which keeps the action of constant loadings unchanged while acquires the result of limit analysis. Contrastive analysis of some classical examples and analysis of influence factors show that the results using the algorithm are convergent,accurate and stabilizing.
- plastic limit analysis /
- elastic compensation finite element method /
- effect of constant loading

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参考文献(14)

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