|本期目录/Table of Contents|

[1]周朝阳,周云峰.蜂窝梁等效抗弯刚度的确定方法[J].建筑科学与工程学报,2008,25(01):102.
　ZHOU Chao-yang,ZHOU Yun-feng.Confirm Method of Equivalent Bending Rigidity of Castellated Beams[J].Journal of Architecture and Civil Engineering,2008,25(01):102.
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蜂窝梁等效抗弯刚度的确定方法(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
25卷
期数:
2008年01期
页码:
102
栏目:
出版日期:
2008-03-20

文章信息/Info

Title:
Confirm Method of Equivalent Bending Rigidity of Castellated Beams
作者:
周朝阳，周云峰
中南大学土木建筑学院,湖南长沙410075
Author(s):
ZHOU Chao-yang, ZHOU Yun-feng
School of Civil Engineering and Architecture, Central South University, Changsha 410075, Hunan, China
关键词:
蜂窝梁;  等效抗弯刚度;  刚度算法;  刚度公式;  六边形孔;  圆孔
Keywords:
castellated beam;  equivalent bending rigidity;  algorithm of rigidity;  expression of rigidity;  hexagonal perforation;  circular hole
分类号:
TU392
DOI:
-
文献标志码:
A
摘要:
通过分析不同开孔的蜂窝梁,提出了确定蜂窝梁等效抗弯刚度的方法。该方法根据纯弯蜂窝梁有限元分析(FEA)结果,按照经典力学中挠度-刚度或弯矩-曲率关系式反算刚度,具有简捷、准确、经济、高效等优点。提出了蜂窝梁等效抗弯刚度的合理表达式,并以常用的六边形孔和圆孔为例,通过大量有限元分析,得到了腹板刚度折减系数表,然后进一步给出了该系数的半理论半经验计算公式。结果表明,采用该公式可快速求得蜂窝梁的等效抗弯刚度。
Abstract:
Through analyzing the different opening castellated beams, a method was put forward to determine the equivalent bending stiffness of castellated beams, which was reversely derived from the results of finite element analysis(FEA)for castellated beams under pure bending and the relationships both between deflection and stiffness and between moment and curvature in classical mechanics. It was simple, accurate, economical, and high efficient. A rational formulation was presented to express the equivalent bending stiffness, in which the reduction factor of stiffness for web with openings was obtained by finite element analysis and the method above-mentioned. Furthermore, semi-theory and semi-empirical computing equations were proposed to calculate the factor for castellated beams with hexagonal perforation and circular holes, common shapes in practice. The equivalent bending stiffness of castellated beams can be readily reckoned by using the formula.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2007-11-05
基金项目:湖南省建设科技计划项目(2004-25); 湖南省科技计划项目(2007SK3061)
作者简介:周朝阳(1964-),男,湖南衡阳人,教授,博士生导师,工学博士,E-mail:joezycn@163.com。
更新日期/Last Update: 2008-03-20