The Study on Bearing Capacity of Concrete-Filled Double Skin Steel Tubular Columns of Octagon Section under Axial Compression

Abstract:

Based on unified strength theory solution of thickness cylinder, according to the introducing concrete strength reduction factor and equivalent restriction factor, this paper deduced the axial compressive bearing capacity formula of concrete-filled double skin steel tubular columns of octagon section. Compared the results of the paper with the experiment results，both coincide in good condition. The results show that the theoretical formula are correct and viable. The theoretical formula is expected to provide a theoretical foundation to the research of concrete-filled double skin steel tubular columns of octagon section.And it provides references for the engineering design.

• Periodical: Advanced Materials Research (Volumes 671-674)
• Pages: 936-939
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.671-674.936
• Online since: March 2013
• Authors: Qing Yun Ge, Cai Mei Li, Fu Lian Yang
• Keywords: Concrete-Filled Double Skin Tubes, Octagon Section, Ultimate Bearing Capacity, Unified Strength Theory

References

[1] Wei S, Mau S T, Vipulanandan C, et al. Performance of new sandwich tube under axial loading: experiment[ J] . Journal of Structural Engineering, 1995, 121 (12): 1806-1814.

DOI: 10.1061/(asce)0733-9445(1995)121:12(1806)

[2] Wright H, Odyemi T, Evans H R. The experimental behavior of double skin composite elements [ J] . Journal of Constructional Steel Rerearch, 1991, 19: 91- 110.

[3] Tao Zhong, Han Linhai, Huang Hong. Mechanical behavior of concrete filled double skin steel tubular columns with circular sections [ J] . China Civil Engineering Journal, 2004, 37 ( 10) : 41- 51 (in Chinese).

[4] Yang Junjie, Xu Hanyong, Peng Guojun. A study on the behavior of concrete-filled double skin steel tubular columns of octagon section under axial compression. China Civil Engineering Journal, 2007, 40(2): 33-38 (in Chinese).

DOI: 10.1007/s11709-008-0035-5

[5] ZHAO Jun-hai, GUO Hong-xiang, WEI Xue-ying. Re-search on Bearing Capacity of Concrete Filled Double Skin Steel Tubes Column[J]. Journal of Architecture and Civil Engineering, 2005, 22(1): 50-54. (in Chinese).

[6] UENAKA K, KITOH H, SONODA K, et al. Experimental Study on Concrete Filled Double Tubular Steel Columns Under Axial Loading[J]. Advances in Steel Structures, 2003, 2: 877-882.

DOI: 10.12989/scs.2008.8.4.297

[7] Kenji S, Hiroyuki N, Shosuke M, et al. Behavior of centrally loaded concrete-filled steel-tube short columns. Journal of Structural Engineering, 2004, 130(2): 180-188.

DOI: 10.1061/(asce)0733-9445(2004)130:2(180)

[8] Li Xiao-wei, Zhao Jun-hai. Mechanics behavior of axial loaded short columns with concrete-filled square steel tube. Chinese Journal of High-way and Transport, 2006, 19(5): 77-81 (in Chinese).

[9] YU Mao-hong. Concrete Strength Theory and Application[M]. HIGHER EDUCATION PRESS, 2002. (in Chinese).

[10] Zhong Shantong. Concrete filled steel tubular Structure[M]. Beijing: Tsinghua university Press, 2003 (in Chinese).

[11] CAI Shao-huai. Modern Concrete-filled Steel Tube Structures[M]. Beijing: China Communications Press, 2003. (in Chinese).

[12] WANG Ren, XIONG Zhu-hua, HUANG Wen-bin. The Basis of Plastic Mechanics[M]. Beijing: Science Press, 1982. (in Chinese).