Numerical Simulation Studies on Flexural Behavior of Casing Joint of Square Steel Tube

Abstract:

The numerical simulation studies on flexural behavior of casing joint of square steel tube were carried out by using finite element analysis software ANSYS/LS-DYNA with consideration of geometric nonlinearity, material nonlinearity and contact nonlinearity. On this basis, the effects of tube wall thickness, tube edge length, and inserting depth on failure mode, ultimate flexural capacity and deformation of casing joint of square steel tube was discussed. The results show that there are two types of failure modes, i.e., inside tube yield failure and outside tube shear failure, when the joints are subjected to lateral concentrated load. Ultimate flexural capacity and rigidity of casing joint of square steel tube increased with the inserting depth increasing. The ultimate flexural capacity of the joint is proportional to tube shear strength, tube wall thickness, inserting depth, and tube edge length. The fruits are useful to the design and application of casing joint of square steel tube.

• Periodical: Advanced Materials Research (Volumes 156-157)
• Pages: 1564-1567
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.156-157.1564
• Online since: October 2010
• Authors: Min Ding, Zhen Hua Hou, Xiu Gen Jiang, Yu Zhi He, Guang Kui Zhang, Jin San Ju
• Keywords: Casing Joint, Failure Mode, Flexural Behavior, Numerical Simulation

References

[1] M. Yajima, H. Akiyama, and N. Akiyama：Journal of Society of Steel Construction. Vol. 10 (1974), p.102 (in Japanese).

[2] K. J. R. Rasmussen: Journal of Constructional Steel Research. Vol. 54 (2000), p.75.

[3] C. K. Lee, L. S. Tjhen, and C. S. Ping: Engineering Fracture Mechanics, Vol. 72 (2005), p.983.

[4] Y. S. Choo, X. D. Qian, and J. Wardenier: Journal of Constructional Steel Research, Vol. 62 (2006), p.316.

[5] B. Shen, Theoretical and experimental studies on static stability behavior of axially compressed sleeved column, Tongji University, Shanghai (2007) (in Chinese).

[6] L. L. Zhang, Study on the load-carrying capability of the casing plug joint of tubular steel structures, China Agricultural University, Beijing (2006) (in Chinese).

[7] Y. H. Wu, Study on the performance of the casing plug joint of square steel tube structures, China Agricultural University, Beijing (2009) (in Chinese).

[8] Z. H. Hou. Test on the load carrying capacity of the casing and dowel joint of square steel tube. China Agricultural University, Beijing, 2010 (in Chinese).