Finite Element Analysis of Prestressed Concrete-Filled Square Steel Tube Truss

Abstract:

Prestressed concrete-filled square steel tube truss is the kind of truss whose upper chords and lower chords are respectively concrete-filled square steel tube and prestressed square steel tube. Four truss models as square steel tube truss, concrete-filled square steel tube truss, prestressed square steel tube truss and prestressed concrete-filled square steel tube truss were analysed by ANSYS, each of those truss models’ span has three variations. The result shows that the bar sections’ strength of square steel tube truss and concrete-filled square steel tube truss are far from reaching their design strength when the allowable values of deflection has reached l//400. Unlike the cases described above, when the bar sections’ strength of prestressed square steel tube truss and prestressed concrete-filled square steel tube truss has reached their design strength, their load-bearing capacity is 1 or 1.5 times higher than those cases above and their deflection has not reached the allowable values.

• Periodical: Advanced Materials Research (Volumes 838-841)
• Pages: 510-513
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.838-841.510
• Online since: November 2013
• Authors: Chun Li Zhou*, Ru Yang, Xue Ying Tang
• Keywords: Concrete-Filled Square Steel Tube, Finite Element Analysis (FEA), Prestressed, Truss

References

[1] Shantong Zhong. Prestressed Steel Structuret [M]. Harbin: Harbin intitute of technology press, 1986. (In Chiese).

[2] Cilin Lu, Siming Yin, Xiliang Liu. Modern Prestressed Steel Structures [M]. Beijing: China Communications Press, 2003. (In Chiese).

[3] Calladine C. R, Pellegrino S. First-order Infinitesimal Mechanisms [J]. Int. J. Solids Structures. 200l, 28(27): 505 - 515.

DOI: 10.1016/0020-7683(91)90137-5

[4] Kuzndtsov E. N. Orthogonal Load Resolution and Statical-Kinematic Stiffness Matrix [J]. Int.J. Solids Structures. 1997, 34(28)3657 - 3672.

DOI: 10.1016/s0020-7683(96)00229-6

[5] Yizhou Zhuang, Jianhua Wu, Kaicheng Wu, et al. Study on application and theory of prestressed concret filled steel tubular spatial truss [J]. Journal of Building Structures, 2003, 24(2): 38 - 42. (In Chiese).

[6] Wenhua Hao . Example Applications In Civil Engineering Of ANSYS ［M］. Beijing: China Water Conservancy and Hydropower Press, 2005. (In Chiese).