[1]袁焕鑫,王元清,杜新喜,等.不锈钢焊接箱形截面短柱轴压局部稳定性能[J].东南大学学报(自然科学版),2015,45(4):769-775.[doi:10.3969/j.issn.1001-0505.2015.04.027]
 Yuan Huanxin,Wang Yuanqing,Du Xinxi,et al.Local buckling behavior of axially loaded stub columns with welded stainless steel box sections[J].Journal of Southeast University (Natural Science Edition),2015,45(4):769-775.[doi:10.3969/j.issn.1001-0505.2015.04.027]
点击复制

不锈钢焊接箱形截面短柱轴压局部稳定性能()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
45
期数:
2015年第4期
页码:
769-775
栏目:
土木工程
出版日期:
2015-07-20

文章信息/Info

Title:
Local buckling behavior of axially loaded stub columns with welded stainless steel box sections
作者:
袁焕鑫12王元清2杜新喜1石永久2舒赣平3
1武汉大学土木建筑工程学院, 武汉 430072; 2清华大学土木工程系, 北京 100084; 3东南大学土木工程学院, 南京 210096
Author(s):
Yuan Huanxin12 Wang Yuanqing2 Du Xinxi1 Shi Yongjiu2 Shu Ganping3
1School of Civil Engineering, Wuhan University, Wuhan 430072, China
2Department of Civil Engineering, Tsinghua University, Beijing 100084, China
3School of Civil Engineering, Southeast University, Nanjing 210096, China
关键词:
不锈钢结构 局部稳定 焊接箱形截面 短柱试验 有限元分析
Keywords:
stainless steel structure local buckling welded box section stub column test finite element analysis
分类号:
TU391;TU317.1
DOI:
10.3969/j.issn.1001-0505.2015.04.027
摘要:
设计并加工了7个奥氏体型S30408和6个双相型S22253不锈钢焊接箱形截面短柱试件,通过压缩材性试验得出了2种不锈钢板材的力学性能指标,同时量测了试件的几何初始缺陷和焊接残余应力分布形态.此外,在两端固接的约束条件下开展短柱轴压试验,得到了试件的局部稳定承载力和屈曲失效形态.试验结果表明,随着板件宽厚比的增大,其局部稳定承载力逐渐降低.采用ABAQUS建立考虑材料非线性和各向异性、几何初始缺陷和焊接残余应力的有限元模型,对短柱轴压局部稳定性能进行了数值模拟,计算结果与试验结果吻合良好,验证了有限元模型的准确性和可靠性.得到的短柱试验结果和建立的有限元模型可以为焊接不锈钢构件稳定性能的研究提供参考.
Abstract:
The stainless steel stub column specimens with box sections were designed and fabricated by welding, among which seven specimens were made of austenitic grade S30408 and six other ones were made of duplex grade S22253. The material properties of both kinds of stainless steel plates were obtained by compressive coupon tests, and the initial geometric imperfections and welding residual stresses were accurately determined. In addition, the stub column tests were conducted under axial compression with fixed end boundary conditions to obtain the buckling capacities and failure modes. The experimental results show that the local buckling capacity gradually decreases along with the increase in plate width-to-thickness ratios. Meanwhile, the ABAQUS software package was used to develop finite element(FE)models that take into account nonlinear material properties, effects of anisotropy, initial geometric imperfections and welding residual stresses. Numerical simulations for the stub column tests were performed by the FE models, which indicate good agreement between the FE predictions and test results. The accuracy and reliability of the developed FE models were, therefore, validated. The obtained test results and the corresponding FE models can be used for further research on the stability of welded structural stainless steel members.

参考文献/References:

[1] 王元清,常婷,石永久.循环荷载下奥氏体不锈钢的本构关系试验研究[J].东南大学学报:自然科学版,2012,42(6):1175-1179.
  Wang Yuanqing, Chang Ting, Shi Yongjiu. Experimental study on constitutive relationship in austenitic stainless steel under cyclic loading [J]. Journal of Southeast University: Natural Science Edition, 2012, 42(6):1175-1179.(in Chinese)
[2] 苏庆田,沈祖炎,张其林,等.不锈钢强度设计值取值的试验和理论依据[J].建筑结构学报,2003,24(1):80-83.
  Su Qingtian, Shen Zuyan, Zhang Qilin, et al. Design values of the strength of stainless steel [J]. Journal of Building Structures, 2003, 24(1): 80-83.(in Chinese)
[3] 朱浩川,姚谏.不锈钢薄板纵向受压的有限元模拟及受力性能[J].土木建筑与环境工程,2012,34(3):84-88.
  Zhu Haochuan, Yao Jian. Finite element modeling of stainless steel plates in compression and structural behavior [J]. Journal of Civil, Architectural & Environmental Engineering, 2012, 34(3): 84-88.(in Chinese)
[4] Fan S G, Liu F, Zheng B F, et al. Experimental study on bearing capacity of stainless steel lipped C section stub columns [J]. Thin-Walled Structures, 2014, 83: 70-84.
[5] 舒赣平,郑宝锋,沈晓明.冷成型不锈钢管轴心受压柱试验研究[J].建筑结构学报,2013,34(5):87-95.
  Shu Ganping, Zheng Baofeng, Shen Xiaoming. Experimental study on cold-formed stainless steel tubular columns subjected to axial loading [J]. Journal of Building Structures, 2013, 34(5): 87-95.(in Chinese)
[6] 杨璐,徐东辰,王元清,等.奥氏体型不锈钢焊接箱形截面轴压构件整体稳定性能试验研究[J].土木工程学报,2014,47(8):83-88.
  Yang Lu, Xu Dongchen, Wang Yuanqing, et al. Experimental study on the overall buckling behavior of austenitic stainless steel columns under axial compression [J]. China Civil Engineering Journal, 2014, 47(8): 83-88.(in Chinese)
[7] Rossi B, Jaspart J P, Rasmussen K J R. Combined distortional and overall flexural-torsional buckling of cold-formed stainless steel sections: experimental investigations [J]. Journal of Structural Engineering, 2010, 136(4): 354-360.
[8] Kuwamura H. Local buckling of thin-walled stainless steel members [J]. Steel Structures, 2003(3): 191-201.
[9] Gardner L, Talja A, Baddoo N R. Structural design of high-strength austenitic stainless steel [J]. Thin-Walled Structures, 2006, 44(5): 517-528.
[10] Huang Y E, Young B. Material properties of cold-formed lean duplex stainless steel sections [J]. Thin-Walled Structures, 2012, 54: 72-81.
[11] 王元清,袁焕鑫,石永久,等.不锈钢焊接箱形截面残余应力试验与分布模型[J].东南大学学报:自然科学版,2013,43(5):979-985.
  Wang Yuanqing, Yuan Huanxin, Shi Yongjiu, et al. Measurement and distribution models of residual stresses in welded stainless steel box sections [J]. Journal of Southeast University: Natural Science Edition, 2013, 43(5): 979-985.(in Chinese)
[12] Ziemian R D. Guide to stability design criteria for metal structures [M]. 6th ed. New York: John Wiley & Sons, Inc., 2010.
[13] 中华人民共和国国家质量监督检验检疫总局.GB/T 7314—2005金属材料室温压缩试验方法[S].北京:中国标准出版社,2005.
[14] Becque J, Rasmussen K J R. Experimental investigation of local-overall interaction buckling of stainless steel lipped channel columns [J]. Journal of Constructional Steel Research, 2009, 65(8/9): 1677-1684.
[15] 王元清,袁焕鑫,石永久.一种连续量测结构构件局部几何初始缺陷的装置:中国,201220712456.7[P].2013-07-03.
[16] Afshan S, Gardner L. The continuous strength method for structural stainless steel design [J]. Thin-Walled Structures, 2013, 68: 42-49.
[17] Hibbitt H, Karlsson B, Sorensen P. ABAQUS analysis user’s manual version 6.10 [M]. Providence, RI, USA: Dassault Systèmes Simulia Corp, 2011.
[18] Gardner L, Ashraf M. Structural design for non-linear metallic materials [J]. Engineering Structures, 2006, 28(6): 926-934.

备注/Memo

备注/Memo:
收稿日期: 2014-12-09.
作者简介: 袁焕鑫(1988—),男,博士,讲师;王元清(联系人),男,博士,教授,博士生导师,wang-yq@tsinghua.edu.cn.
基金项目: 中国博士后科学基金资助项目(2014M560626,2015T80832)、中央高校基本科研业务费专项资金资助项目(2042015kf0005).
引用本文: 袁焕鑫,王元清,杜新喜,等.不锈钢焊接箱形截面短柱轴压局部稳定性能[J].东南大学学报:自然科学版,2015,45(4):769-775. [doi:10.3969/j.issn.1001-0505.2015.04.027]
更新日期/Last Update: 2015-07-20