Research on the axial compression behaviour of GFRP-wound tube-wood-reinforced concrete composite columns

doi:10.19936/j.cnki.2096-8000.20231028.001

Abstract

Abstract: The axial compression behavior of wood-reinforced concrete composite columns confined with glass fibre reinforced polymer(GFRP)-wound tube was investigated by experiments, and compared with that of GFRP-wrapped composite columns. The effects of each component on the failure mode, bearing capacity, stiffness and ductility of composite columns are analyzed. The results indicated that the stiffness of GFRP tube-restrained composite column with wood core is 36.2%~49.2% higher than that of GFRP-wrapped composite column with wood core, and different GFRP restraint forms have no significant effect on the bearing capacity and ductility of composite columns. The introduction of wood core increased the ductility of GFRP restrained columns by 23.8%~27.0%. Compared with the unbonded combined column, the bearing capacity of GFRP tube-restrained composite column can be significantly increased by 146.5%~208.6%, and the ductility can be increased by 28.4%~56.4%.

Key words: axial compression, GFRP-wound tube, GFRP-wrapped, composite column, wood core, composites

CLC Number:

TB332

SHEN Yebo, ZHANG Fubin, XU Jing, FANG Hai. Research on the axial compression behaviour of GFRP-wound tube-wood-reinforced concrete composite columns[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(10): 5-9.

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