[1]刘朝宏,李天..轻型门式刚架的平面内稳定系数计算[J].郑州大学学报(工学版),2001,22(02):73-76.[doi:10.3969/j.issn.1671-6833.2001.02.022]
　Liu Chaohong,Li Tian.Calculation of in-plane stability coefficient for lightweight portal rigid frames[J].Journal of Zhengzhou University (Engineering Science),2001,22(02):73-76.[doi:10.3969/j.issn.1671-6833.2001.02.022]
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轻型门式刚架的平面内稳定系数计算()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
22
期数:
2001年02期
页码:
73-76
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Calculation of in-plane stability coefficient for lightweight portal rigid frames
作者:
刘朝宏; 李天.
郑州工业大学土木建筑工程学院,, 郑州工业大学土木建筑工程学院,
Author(s):
Liu Chaohong; Li Tian
关键词:
门式刚架;  稳定性;  变截面构件;  计算长度;  临界荷载
Keywords:
DOI:
10.3969/j.issn.1671-6833.2001.02.022
文献标志码:
A
摘要:
针对现行规范或规程对轻型门式刚架设计中有关稳定系数取值的局限, 用有限单元法对门式刚架进行平面内弹性稳定的整体分析,所得变截面柱在刚架平面内的计算长度系数,不受传统设计中刚架结构形式和荷载作用条件的限制;利用等效转动刚度的概念,对楔形梁在刚架平面内的换算长度系数进行了讨论,在大量算例分析的基础上,指出换算长度系数与变截面构件几何尺寸及内力之间的变化关系,以供结构设计人员参考.
Abstract:
According to the limitations of the current norms or regulations on the stability coefficient value in the design of lightweight portal rigid frame, the overall analysis of the elastic stability in the plane of the portal rigid frame is carried out by the finite element method, and the calculated length coefficient of the obtained variable-section column in the rigid frame plane is not limited by the structural form and load conditions of the rigid frame in the traditional design. Using the concept of equivalent rotational stiffness, the conversion length coefficient of wedge beam in the plane of the rigid frame is discussed, and the change relationship between the conversion length coefficient and the geometric dimensions and internal forces of variable section members is pointed out on the basis of a large number of example analysis, for the reference of structural designers.

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更新日期/Last Update: 1900-01-01