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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

23卷

期数:

2006年03期

页码:

32

栏目:

出版日期:

2006-09-20

文章信息/Info

Title:

Static Elastic-Plastic Analysis of Frame Structure Based on Force Analogy Method

作者:

刘哲锋，沈蒲生，龚胡广

湖南大学 土木工程学院,湖南 长沙 410082

Author(s):

LIU Zhe-feng, SHEN Pu-sheng, GONG Hu-guang

School of Civil Engineering, Hunan University, Changsha 410082, Hunan, China

关键词:

拟力法;  框架结构;  弹塑性分析;  半刚性连接;  静力

Keywords:

force analogy method;  frame structure;  elastic-plastic analysis;  semi-rigid connection;  static

分类号:

TU317

DOI:

-

文献标志码:

A

摘要:

针对拟力法仅在刚性连接钢框架中应用的现状,根据钢筋混凝土框架以及半刚性连接钢框架的受力特点,并基于拟力法的基本假定与思路,得出了钢筋混凝土结构中塑性铰和半刚性连接钢框架中连接的弯矩-相对转角关系,从而推导并获得了拟力法在框架结构静力弹塑性分析中的通用公式。通过与有限元理论计算结果的比较,表明基于拟力法的框架结构静力弹塑性分析方法在应用于各类框架结构时都有着较高的精度,从而为将基于拟力法的动力弹塑性分析包括地震能量分析拓展到钢筋混凝土框架结构以及半刚性连接钢框架结构中奠定了基础。

Abstract:

According to the present situation that the force analogy method can only be applied in analysis of steel frame with rigid connections, a universal formula of the algorithm for the static elastic-plastic analysis of frame structure was derived and proposed based on the mechanic characteristics of reinforced concrete frames and steel frames with semi-rigid connections and the basic assumptions and theory of the force analogy method. The plastic hinge in reinforced concrete structure and the relation of moments and relative rotation angle in steel frames with semi-rigid connections were gained. By comparing with the results based on the finite elements calculation result, the algorithm was proved to be efficient in analyzing not only reinforced concrete frames, but also steel frames with semi-rigid connections. Authors provided a foundation for applying the dynamic elastic-plastic analysis based on the force analogy method including earthquake energy analysis extended to reinforced concrete frames as well as steel frames with semi-rigid connections.

参考文献/References:

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备注/Memo

备注/Memo:

收稿日期:2006-06-18
基金项目:国家自然科学基金项目(50378035)
作者简介:刘哲锋(1976-),男,湖南益阳人,工学博士研究生,E-mail:lzf0072006@163.com。

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更新日期/Last Update: 2006-09-20