INFLUENCES OF RESIDUAL STRESS ON INELASTIC LATERAL- TORSIONAL BUCKLING OF WELDED I- BEAMS

Wang Yuanqing; Gao Bo; Dai Guoxin; Shi Yongjiu

doi:10.13204/j.gyjz2011205008

Volume 42 Issue 5

Dec. 2014

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Wang Yuanqing, Gao Bo, Dai Guoxin, Shi Yongjiu. INFLUENCES OF RESIDUAL STRESS ON INELASTIC LATERAL- TORSIONAL BUCKLING OF WELDED I- BEAMS[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(5): 51-54. doi: 10.13204/j.gyjz2011205008

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INFLUENCES OF RESIDUAL STRESS ON INELASTIC LATERAL- TORSIONAL BUCKLING OF WELDED I- BEAMS

doi: 10.13204/j.gyjz2011205008

1.
1. Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry,Department of Civil Engineering,Tsinghua University,Beijing 100084,China;
2.
2. China Southwest Architectural Design and Research Institute Co.Ltd,Chengdu 610081,China;
3.
3. Faculty of Civil Engineering,Chongqing University,Chongqing 400045,China

Received Date: 2011-12-10
Publish Date: 2012-05-20

Abstract

Abstract

The influence of residual stress on stainless steel beams is to cause premature yield and loss of flexural stiffness.The influences of magnitudes and distribution of residual stress on the lateral buckling are therefore important for stainless steel welded I-beams.The influencing factors analysis on the inelastic lateral buckling behavior of the beams was presented by adopting the widely approval model of residual stress.This paper improves the investigation on the overall buckling behavior and the results show that the amplitude of compression stress in flange performs the significant effect．
- residual stress,
- stainless steel,
- welded I beams,
- lateral-torsional buckling

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References(7)

References

Gardner L，Cruise R B. Modeling of Residual Stresses in Structural Stainless Steel Sections [J]. Journal of Structural Engineering，2009，135(1): 42-53.

[2] 王元清，高博，戴国欣，等. 焊接工字形截面不锈钢受弯构件的整体稳定性分析[J]. 沈阳建筑大学学报:自然科学版，2010，26(6):1021-1026.

[3] Wang Yuanqing，Gao Bo，Dai Guoxin. Numerical Analysis of Overall Stability of Unbraced Stainless Steel Simply-Supported Beams with Fabricated I-Section[C]∥Processing on International Conference on Electric Information and Control Engineering. Wuhan: 2011.

[4] 王元清，高博，戴国欣，等. 双轴对称不锈钢受弯构件残余变形的影响因素分析[J]. 山东大学学报:工学版，2011，41(1): 1-6.

[5] Lagerqvist O，Olsson A. Residual Stresses in Welded I-Girders Made of Stainless Steel and Structural Steel[C]∥ Proceedings of the Ninth Nordic Steel Construction Conference. Finland: 2001: 737-744.

[6] Ashral M，Gardner L，Nethercot D A. Finite Element Modeling of Structural Stainless Steel Cross Sections [J]. Thin-Walled Structures，2006，44(10):1048-1062.

[7] 夏志斌，潘有昌，张显杰. 焊接工字形钢梁在纯弯时的非弹性侧扭屈曲[J]. 浙江大学学报，1985，4(增刊):93-109.

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