|本期目录/Table of Contents|

[1]江力强,郑 宏,赵 鹏,等.交叉加劲钢板深梁弹性屈曲分析[J].建筑科学与工程学报,2015,32(04):80-85.
 JIANG Li-qiang,ZHENG Hong,ZHAO Peng,et al.Elastic Buckling Analysis on Steel Plate Deep Beam with Diagonal Stiffeners[J].Journal of Architecture and Civil Engineering,2015,32(04):80-85.
点击复制

交叉加劲钢板深梁弹性屈曲分析(PDF)
分享到:

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

卷:
32卷
期数:
2015年04期
页码:
80-85
栏目:
出版日期:
2015-07-21

文章信息/Info

Title:
Elastic Buckling Analysis on Steel Plate Deep Beam with Diagonal Stiffeners
作者:
江力强郑 宏赵 鹏袁晓洒
东南大学土木工程学院
Author(s):
JIANG Li-qiang, ZHENG Hong, ZHAO Peng, YUAN Xiao-sa
School of Civil Engineering, Southeast University
关键词:
交叉加劲钢板深梁屈曲荷载门槛刚度比等效屈曲系数
Keywords:
diagonal stiffener steel plate deep beam buckling load threshold stiffness ratio equivalent buckling coefficient
分类号:
-
DOI:
-
文献标志码:
A
摘要:
以交叉加劲钢板深梁为研究对象,利用有限元软件ANSYS分析其弹性屈曲性能,讨论了抗弯刚度比、跨高比、钢板深梁厚度对其弹性屈曲性能的影响;考虑钢板深梁在钢框架的弯剪受力特性,根据板的经典理论建立了交叉加劲钢板深梁屈曲荷载计算公式,提出了等效屈曲系数。结果表明:交叉加劲钢板深梁的临界屈曲荷载随抗弯刚度比增大而增大,但达到门槛刚度比后,增大幅度急剧减小,得到门槛刚度比约为10;临界屈曲荷载随跨高比和板厚的减小而减小,等效屈曲系数随板厚减小而增大;等效屈曲系数与跨高比关系曲线由二次抛物线形向波浪形渐变,交叉加劲钢板深梁受力特性由剪切主导向弯曲主导过渡。
Abstract:
The elastic buckling behavior of steel plate deep beam with diagonal stiffeners was studied using finite element analysis software ANSYS. The influences of bending stiffness ratio, spandepth ratio, thickness of steel plate deep beam on elastic buckling were discussed; Considering bending shear stress characteristic of steel plate deep beam in steel frame, the calculation formula for buckling load of steel plate deep beam with diagonal stiffeners was introduced by using the classic theory of plate and equivalent buckling coefficient. The results show that critical buckling load increases when bending stiffness ratio increases, but the increment sharply decreases while bending stiffness ratio is equal to threshold stiffness ratio which is about 10. The critical buckling load decreases when spandepth ratio and thickness of plate decrease. The equivalent buckling coefficient increases when thickness of the plate decreases. The curves of equivalent buckling coefficient and spandepth ratio change from shape of seconddegree parabola to wave of gradient when thickness of plate decreases. It means that the mechanical properties of steel plate deep beam with diagonal stiffeners are from shear to bend.

参考文献/References:

相似文献/References:

[1]袁晓洒,郑宏,于长亮.钢框架内填钢板深梁协同分析[J].建筑科学与工程学报,2012,29(02):43.
 YUAN Xiao-sa,ZHENG Hong,YU Chang-liang.Interactive Analysis of Steel Deep Beam Infilling Steel Frame[J].Journal of Architecture and Civil Engineering,2012,29(04):43.

备注/Memo

备注/Memo:
更新日期/Last Update: 2015-07-21