[1]杜文风,朱黎明,张慧,等.空腹网壳结构的静力稳定性与极限承载力研究[J].郑州大学学报(工学版),2008,29(03):99-102.[doi:10.3969/j.issn.1671-6833.2008.03.026]
　Du Wenfeng,ZHU Liming,ZHANG Hui,et al.Study on static stability and ultimate bearing capacity of fasting mesh shell structure[J].Journal of Zhengzhou University (Engineering Science),2008,29(03):99-102.[doi:10.3969/j.issn.1671-6833.2008.03.026]
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空腹网壳结构的静力稳定性与极限承载力研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
29卷
期数:
2008年03期
页码:
99-102
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Study on static stability and ultimate bearing capacity of fasting mesh shell structure
作者:
杜文风; 朱黎明; 张慧; 等.
河南大学,土木建筑学院,河南,开封,475004, 河南大学,土木建筑学院,河南,开封,475004, 河南大学,土木建筑学院,河南,开封,475004, 河南大学,土木建筑学院,河南,开封,475004
Author(s):
Du Wenfeng; ZHU Liming; ZHANG Hui; etc
关键词:
空腹网壳结构;  几何非线性;  极限承载力;  单层网壳结构
Keywords:
DOI:
10.3969/j.issn.1671-6833.2008.03.026
文献标志码:
A
摘要:
针对空腹网壳结构的静力稳定性及其极限承载力问题,应用非线性有限元法进行了研究.采用特征值屈曲分析和非线性屈曲分析两种分析方式考查了空腹网壳结构的屈曲模态和失稳全过程,通过大规模的几何参数分析,计算得到了矢跨比、网壳厚度、腹杆截面等参数取不同数值时的结构极限承我力,并与单层网壳结构进行了对比.结果表明,空腹网壳结构以整体失稳为主,在用钢量相同的情况下极限承载力比单层网壳结构提高2.87倍.空腹网壳结构既具有单层网壳结构简洁美观,又有双层网壳结构的稳定性好和承载力高的优点,是一种优良的结构形式.
Abstract:
Aiming at the static stability and ultimate bearing capacity of fasting grid shell structure, the nonlinear finite element method was used to study. The whole process of buckling mode and instability of fasting grid shell structure was investigated by two analysis methods, eigenvalue buckling analysis and nonlinear buckling analysis, and through large-scale geometric parameter analysis, the structural limit bearing force of sagittal span ratio, grid shell thickness, web section and other parameters was calculated when different values were obtained, and compared with the single-layer grid shell structure. The results show that the fasting grid shell structure is mainly instability as a whole, and the ultimate bearing capacity is 2.87 times higher than that of the single-layer grid shell structure under the same amount of steel.

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更新日期/Last Update: 1900-01-01