|本期目录/Table of Contents|

[1]刘永健,李 慧,张 宁.非均匀受压矩形钢管混凝土局部弹性屈曲分析[J].建筑科学与工程学报,2015,32(04):1-8.
 LIU Yong-jian,LI Hui,ZHANG Ning.Local Elastic Buckling Analysis of Rectangular Concrete-filled Steel Tube Under Non-uniform Compression[J].Journal of Architecture and Civil Engineering,2015,32(04):1-8.
点击复制

非均匀受压矩形钢管混凝土局部弹性屈曲分析(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:
1-8
栏目:
出版日期:
2015-07-21

文章信息/Info

Title:
Local Elastic Buckling Analysis of Rectangular Concrete-filled Steel Tube Under Non-uniform Compression
作者:
刘永健李 慧张 宁
长安大学陕西省公路桥梁与隧道重点实验室
Author(s):
LIU Yong-jian LI Hui ZHANG Ning
Shaanxi Provincial Major Laboratory for Highway Bridge & Tunnel,Chang’an University
关键词:
矩形钢管混凝土局部弹性屈曲伽辽金法临界屈曲系数
Keywords:
rectangle concrete-filled steel tube local elastic buckling Galerkin method critical buckling coefficient
分类号:
-
DOI:
-
文献标志码:
A
摘要:
应用不同的特征函数描述了矩形板在非均匀压力作用下的屈曲形态,解决了采用三角级数为屈曲函数模拟非均匀受压荷载作用下单侧表面约束矩形板件屈曲模态的不对称问题;通过伽辽金法建立屈曲控制方程组,分析了非均匀荷载作用对矩形钢管混凝土构件局部弹性屈曲性能的影响。结果表明:钢管屈曲系数随着不均匀荷载梯度α增加而增大,纯弯作用下(α=2)的板件弹性屈曲荷载特征值约为轴压作用下的6倍;钢板的宽厚比限值随不均匀加载梯度α的增大而增加;非均匀荷载作用下非加载边固支约束板件的屈曲系数明显大于简支约束的板件。
Abstract:
The buckling modes of rectangular plates under nonuniform compression were described by using different characteristic functions, and the trigonometric series as buckling function to simulate the surface of the unilateral constraints under nonuniform compression load were solved, which rectangular plate buckling mode was asymmetric. The buckling governing equations by Galerkin method were built, then the effect of local elastic buckling under nonuniform load on rectangular concretefilled steel tube (CFST) was analyzed. The results show that the steel tube buckling coefficient increases with nonuniform loading gradient α, uniform bending (α=2) plate under elastic buckling load characteristic value is about 6 times than axial compression. The limit values of widththickness ratio of steel increase with nonuniform loading gradient α. The buckling coefficient of fixed constraint plate with unloaded edges under nonuniform load is greater than that of simply supported plate.

参考文献/References:

-

相似文献/References:

[1]程 高,刘永健,邱洁霖,等.PBL加劲型矩形钢管混凝土不等宽T型节点应力集中系数分析[J].建筑科学与工程学报,2014,31(04):74.
 CHENG Gao,LIU Yong-jian,QIU Jie-lin,et al.Analysis of Stress Concentration Factor on Concrete-filled Rectangular Steel Tube T-joints Stiffened with PBL[J].Journal of Architecture and Civil Engineering,2014,31(04):74.
[2]刘永健,李 慧,张 宁,等.PBL加劲型矩形钢管混凝土界面粘结-滑移性能[J].建筑科学与工程学报,2015,32(05):1.
 LIU Yong-jian,LI Hui,ZHANG Ning,et al.Interface Bond-slip Performance of Rectangular Concrete-filled Steel Tube Stiffened by PBL[J].Journal of Architecture and Civil Engineering,2015,32(04):1.
[3]刘永健,李 慧,张 宁.界面状态对矩形钢管混凝土构件抗弯性能的影响[J].建筑科学与工程学报,2016,33(01):15.
 LIU Yong-jian,LI Hui,ZHANG Ning.Influence of Interface State of Rectangular Concrete-filled Steel Tube on Flexural Performance of Component[J].Journal of Architecture and Civil Engineering,2016,33(04):15.
[4]张 宁,刘永健,李 慧.PBL加劲型矩形钢管混凝土轴压柱局部屈曲性能分析[J].建筑科学与工程学报,2017,34(02):95.
 ZHANG Ning,LIU Yong-jian,LI Hui.Local Buckling Performance Analysis of Rectangular Concrete-filled Steel Tubular Axial Compression Column with PBL Stiffeners[J].Journal of Architecture and Civil Engineering,2017,34(04):95.
[5]刘永健,张宁,张俊光.PBL加劲型矩形钢管混凝土的力学性能[J].建筑科学与工程学报,2012,29(04):13.
 LIU Yong-jian,ZHANG Ning,ZHANG Jun-guang.Mechanical Behavior of Concrete-filled Square Steel Tube Stiffened with PBL[J].Journal of Architecture and Civil Engineering,2012,29(04):13.

备注/Memo

备注/Memo:
-
更新日期/Last Update: 2015-07-21