Preliminary Research on Effective Length of Concrete Filled Steel Tubular Columns in Sway Frame

Abstract:

The effective length of concrete filled steel tubular (CFST) frame columns is a key parameter to determine its ultimate strength for engineering design. There was no special design code, so engineers usually got the values according with specification for steel structure. This may cause error in some degree. Based on liner and non-linear buckling analysis respectively, the overall stability of a typical planar composite frame with CFST columns and steel beams was performed in this paper. By comparing the results of finite element method with current approach, some primary conclusions were given to refer for engineering practice on the composite frames.

• Periodical: Advanced Materials Research (Volumes 446-449)
• Pages: 318-321
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.446-449.318
• Online since: January 2012
• Authors: Yan Li Shi, Feng Wang, Wen Da Wang
• Keywords: Concrete-Filled Steel Tube (CFST), Effective Length Factor, Finite Element Method (FEM), Frame Columns, Linear Buckling Analysis, Nonlinear Buckling Analysis, Sway Frame

References

[1] Wenda Wang, Linhai Han and Zhong Tao: Journal of Harbin Institute of Technology. Vol. 37(2005), pp.167-170. (in Chinese)

[2] Eurocode4. Design of Steel and Concrete Structures, Partl.1, General Rules and Rules for Buildings. BS EN 1994-1-1:2004. British Standards Institution, London (2004)

[3] AIJ. Recommendations for Design and Construction of Concrete Filled Steel Tubular Structures. Architectural Institute of Japan (AIJ). (1997)

[4] AISC. Specification for Structural Steel Buildings. American Institute of Steel Construction (AISC), Chicago (2010)

[5] DB 62/T25-3041-2009. Technical Specification for Concrete-filled Steel Tubular Structures. Engineering Construction Standard Management Office, Gansu. (in Chinese)

[6] GB50017-2003. Code for Design of Steel Structures. (in Chinese)

[7] Peifu Xu. Design of Complex Tall Buildings. Beijing: China Architecture Industry Press(2005). (in Chinese)

[8] Guohuang Yao, Zhangqi Sun and Suwen Sun: Steel Construction. Vol.25(2010), pp.35-38. (in Chinese)

[9] Shizhao Shen, Xi Chen. Stability of Spherical Shell Structure. Beijing: Science Press(1999). (in Chinese)

[10] Ji Chen. Stability of Steel Structure Theory and Design. Beijing: Science Press(2006). (in Chinese)

[11] W.F. Chen, E. M. Lui. Stability Design of Steel Frames. Boca Raton: CRC Press. (1991)