Axial Compression Ratio on Seismic Performance of CFPR Steel Tube Composite Columns Filled with Steel Reinforced Concrete

Abstract:

To study the mechanical properties of CFPR steel tube composite columns filled with steel reinforced concrete under different axis compression ratio by adopting 3 specimens of theirs quasistatic tests are carried out. The failure mechanism and test results are analyzed with member of the load-displacement hysteretic curves, skeleton curves. The results show that the axial compression ratio decreases conducive to the improvement of the bearing capacity of specimens. Axial compression ratio has a great influence on the skeleton curve and ductility. Axial compression ratio is higher, the descent stage of the skeleton curve is steeper, the ductility is better. With the increase of the axial compression ratio, the ductility coefficient and energy dissipation capacity is lower.

• Periodical: Applied Mechanics and Materials (Volumes 351-352)
• Pages: 687-690
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.351-352.687
• Online since: August 2013
• Authors: Ya Feng Xu, Yue Wang, Shou Yan Bai
• Keywords: Axial Compression Ratio, CFPR Steel Tube Composite Columns Filled with Steel Reinforced Concrete, Ductility, Energy Dissipation, Hysteretic Behavior

References

[1] Xu Yafeng, Zhao Jingyi, Zhang Shixain, Lu Xiaoyi. Experimental research on seismic behavior of circular steel tube composite column filled with steel reinforced concrete [J]. Progress in Steel Building Structures, 2009, 11(3): 4-11.

DOI: 10.1016/j.jobe.2022.104683

[2] Xu Yafeng, Zhang Li, O.E. Sysoev, Dzyuba Victo. Nonlinear fem analysis on CFRP steel reinforced concrete filled with steel tube concrete column [J]. Journal of Shenyang Jianzhu University: Natural Science, 2012, 28(1): 51-59.

DOI: 10.18057/ijasc.2013.9.2.3

[3] Han Linhai. Theory and practice of steel pipe concrete structure [M]. Beijing: Science Press, 2007: 188-204.

[4] Chen Xianming, Peng Wei. Angle steel encased reinforced column load analysis of the whole process of [J]. Bridge construction, 1999, Vol. 3: 11-13.

[5] Yiyan Lu, Chen Shaoxiong, Zhao Guofan. The outer wrapping CFRP and angle steel reinforced concrete column experimental study [J]. Journal of civil engineering, 2005, 38 (8): 10-17.

[6] Teng Jinguang, Chen Jianfei, ST Smith. FRP reinforced concrete structures [M]. Beijing: China Construction Industry Press, 2005: 23-46.