Finite Element Analysis on Different Axial Compression Ratio of Composite CFST Column and Steel Beam Connection

Abstract:

In this paper, in order to understand fully the development of failure mechanism, bearing capacity and seismic performance of the steel H-beams and composite concrete filled steel tubular (CFST) column joints strengthened by outside strengthening ring, in the space zone the effects of changing the axial compression ratio is investigated. A 3D joint finite element model is built up by finite element software ABAQUS, the elastic-plastic finite element analysis is carried through numerical modeling process. The analysis results showed that low axial compression ratio has a little influence on the bearing capacity; with the increase of axial pressure the bearing capacity will decrease in a high axial compression ratio, moreover the failure pattern of joint changes from beam end to column end. The ductility of the specimens is decreased by raising axial compression ratio.

• Periodical: Applied Mechanics and Materials (Volumes 578-579)
• Pages: 278-281
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.578-579.278
• Online since: July 2014
• Authors: Pi Yuan Xu, Qian Chen*, Ya Feng Xu
• Keywords: 3D Joint, Composite CFST Column, Finite Element Analysis (FEA)

References

[1] Fengmei Xu, Mengqin Xu, Chengxiang Xu, Hailin Lu: Finite element analysis of steel beam and CFST column with stiffener ring plate [J]. Journal of Yangtze University (Nat Sci Edit), Vol. 6(4), (2009), pp.98-100.

[2] Yafeng Xu, Yue Wang: Experimental study and nonlinear FEM analysis on seismic performance of CFRP steel tube composite columns filled with steel reinforced concrete [J]. Journal of Shenyang Jianzhu University ( Natural Science ), Vol. 29(4), (2013).

DOI: 10.18057/ijasc.2013.9.2.3

[3] Linhai Han: Theory and practice of encased structures [M]. Beijing. Science Press, (2007).

[4] Shuojuan Xu, FEM Simulation Analysis on Steel Beam to Concrete Filled Circular CFRP Sreel Tubes Column Connections [D]. Master's graduation thesis of Shenyang Jianzhu University, (2010).

[5] Yafeng Xu, Li Sun, Shouyan Bai, Dezhi Liang: Simulation analysis and detailed annotation in engineering case with ABAQUS [M]. Shenyang. Liaoning Education Press, (2013).

[6] Hui Zhou: Experimental and Theoretical Study on 3D Composite Joints under Bidirectional Loading [D]. Master's graduation thesis of Tsinghua University, (2011).