NUMERICAL ANALYSIS OF MECHANICAL PROPERTY OF Q460 HIGH STRENGTH STEEL WELDED BOX COLUMNS UNDER AXIAL COMPRESSION

Wang Yanbo; Li Guoqiang; Chen Suwen; Sun Feifei

doi:10.13204/j.gyjz201201005

Volume 42 Issue 1

Dec. 2014

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2012 > 42(1): 26-31,69

Wang Yanbo, Li Guoqiang, Chen Suwen, Sun Feifei. NUMERICAL ANALYSIS OF MECHANICAL PROPERTY OF Q460 HIGH STRENGTH STEEL WELDED BOX COLUMNS UNDER AXIAL COMPRESSION[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(1): 26-31,69. doi: 10.13204/j.gyjz201201005

Citation:

Wang Yanbo, Li Guoqiang, Chen Suwen, Sun Feifei. NUMERICAL ANALYSIS OF MECHANICAL PROPERTY OF Q460 HIGH STRENGTH STEEL WELDED BOX COLUMNS UNDER AXIAL COMPRESSION[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(1): 26-31,69. doi: 10.13204/j.gyjz201201005

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NUMERICAL ANALYSIS OF MECHANICAL PROPERTY OF Q460 HIGH STRENGTH STEEL WELDED BOX COLUMNS UNDER AXIAL COMPRESSION

doi: 10.13204/j.gyjz201201005

1.
1. College of Civil Engineering,Tongji University,Shanghai 200092,China;
2.
2. State Key Lab of Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China

Received Date: 2011-06-20
Publish Date: 2012-01-20

Abstract

Abstract

In order to investigate the behavior of Q460 high strength steel welded box columns under axial compression,numerical analysis was performed with both numerical integration method(NIM)and finite element method(FEM).The numerical models were based on the previous experiments conducted by authors.The measured initial geometric imperfections and simplified distributions of residual stresses were taken into account in the numerical models.The predicted results obtained through NIM and FEM showed a good agreement with each other.The comparison of test results with numerical results was presented for verifying the NIM program.It was demonstrated that both NIM and FEM,which took initial imperfections into account,could predict reliable results of the behavior of Q460 high strength steel welded box columns under axial compression.Moreover,the accuracy of the simplified distributions of residual stresses was verified by comparing the FEM results considering measured distributions with FEM results considering simplified distributions.
- high strength steel,
- welded box columns,
- axially compressed column,
- numerical integration method,
- finite element analysis

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References(9)

References

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Usami Tsutomu,Fukumoto Yuhshi. Local and Overall Buckling of Welded Box Columns[J].Journal of the Structural Division ASCE,1982,(ST3):525-542.

Usami Tsutomu,Fukumoto Yuhshi. Welded Box Compression Members[J].Journal of Structural Engineering,1984,(10):2457-2470.

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施刚,石永久,王元清. 超高强度钢材焊接箱形轴心受压柱整体稳定的有限元分析[J].沈阳建筑大学学报(自然科学版),2009,(02):255-261.

李国强,王彦博,陈素文. Q460高强钢焊接箱形柱轴心受压极限承载力参数分析[J].建筑结构学报,2011,(11):149-155.

Shen Zuyan,Lu Lewei. Analysis of Initially Crooked,End Restrained Steel Columns[J].Journal of Constructional Steel Research,1983,(01):10-18.

李国强,王彦博,陈素文. 高强钢焊接箱型柱轴心受压极限承载力试验研究[A].香港:香港钢结构学会,2010.328-338.

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