|本期目录/Table of Contents|

[1]王元清,刘莉媛,丁大益,等.大跨结构箱形曲梁的平面内整体稳定性能分析[J].建筑科学与工程学报,2012,29(03):12-17.
　WANG Yuan-qing,LIU Li-yuan,DING Da-yi,et al.Analysis of In-plane Stability Performance of Large Span Steel Structure Curved Box-girders[J].Journal of Architecture and Civil Engineering,2012,29(03):12-17.
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
29卷
期数:
2012年03期
页码:
12-17
栏目:
出版日期:
2012-09-30

文章信息/Info

Title:
Analysis of In-plane Stability Performance of Large Span Steel Structure Curved Box-girders
作者:
王元清1,2,刘莉媛1,2,3,丁大益4,5,石永久1,2,完海鹰5
1. 清华大学 土木工程安全与耐久教育部重点实验室,北京 100084; 2. 清华大学 土木工程系 北京 100084; 3. 北京市建筑设计研究院有限公司,北京 100045; 4. 中国五洲工程设计有限公司,北京 100053; 5. 合肥工业大学 土木与水利工程学院,安徽 合肥 230009
Author(s):
WANG Yuan-qing1,2, LIU Li-yuan1,2,3, DING Da-yi4,5, SHI Yong-jiu1,2, WAN Hai-ying5
1. Key Laboratory of Civil Engineering Safety and Durability of Ministry of Education, Tsinghua University, Beijing 100084, China; 2. Department of Civil Engineering, Tsinghua University, Beijing 100084, China; 3. Beijing Institute of Architecture Des
关键词:
箱形曲梁;  圆弧周线;  初始几何缺陷;  平面内整体稳定性能;  有限元分析
Keywords:
curved box-girder;  arc axis;  initial geometric imperfection;  in-plane stability performance;  finite element analysis
分类号:
TU391
DOI:
-
文献标志码:
A
摘要:
为研究两端铰接圆弧轴线箱形截面曲梁的平面内整体稳定性能,采用数值方法对其进行了理论研究,采用ABAQUS有限元软件建立了二维的曲梁模型,模拟曲梁的平面内稳定问题。研究了不同圆心角、不同长细比,以及不同大小的初始几何缺陷对圆弧轴线箱形截面曲梁平面内稳定性能的影响,得到了弹性屈曲系数的数值解与经典理论解的差异和规律,给出了初始几何缺陷对稳定系数和正则化长细比关系曲线的影响,并且计算得到了该形式曲梁的轴力-弯矩关系曲线。提出的圆弧轴线箱形截面曲梁平面内稳定的设计公式可为今后的设计提供理论依据和建议。
Abstract:
In order to study the in-plane stability performance of the arc axis both ends hinged curved box-girders, numerical method theory was carried out using finite element software ABAQUS. Two- dimensional curved girder models were established to simulate the in-plane stability of curved box- girders. Influences of different central angles, different slenderness ratio, and different initial geometric imperfections on the in-plane stability performances of the curved box-girder were considered. The differences and laws of the numerical solution and classic theoretical solution of the elastic buckling factor were gained. Effects on the stability factor and regularization slenderness ratio of the initial geometric imperfections were given, and the form of axial load-moment curve was calculated as well. The design formulae for calculating the in-plane stability of arc axis curved box-girders can provide theoretical basis and suggestions for the future design.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2012-06-18
基金项目:国家自然科学基金重点项目(51038006)
作者简介:王元清(1963-),男,安徽霍山人,教授,博士研究生导师,工学博士,E-mail:wang-yq@mail.tsinghua.edu.cn。
更新日期/Last Update: 2012-09-20