Research on the Influence of Size Effect for the mechanical Performance of GFRP tube concrete steel tube composite column under axial compression

2nd International Conference on Materials Science, Energy Technology and Environmental Engineering

材料科学;能源学;生态环境科学

Li, Wen^1 ; Wang, Tong^1 ; Na, Yu^1

School of Civil Engineering and Architecture, Northeast Petroleum University, Daqing, Heilongjiang

163000, China^1

关键词: Composite column;    Compression performance;    Concrete strength;    Different sizes;    High strength and corrosion resistances;    Mechanical performance;    Resist deformation;    Short column;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/81/1/012125/pdf
DOI  :  10.1088/1755-1315/81/1/012125

来源: IOP

【 摘 要 】

FRP tube-concrete-steel tube composite column (DSTC) was a new type of composite structures. The column consists of FRP outer tube and steel tube and concrete. Concrete was filled between FRP outer tube and steel tube. This column has the character of light and high strength and corrosion resistance. In this paper, properties of DSTC axial compression were studied in depth. The properties were studied by two groups DSTC short columns under axial compression performance experiment. The different size of DSTC short columns was importantly considered. According to results of the experiment, we can conclude that with the size of the column increases the ability of it to resist deformation drops. On the other hand, the size effect influences on properties of different concrete strength DSTC was different. The influence of size effect on high concrete strength was less than that of low concrete.