Stress—Strain model for CFRP confined preloaded concrete square column under axial load

摘要

This paper has studied on stress-strain model for CFRP confined preloaded concrete square column. And the influencing factor has been analyzed in it. Referring the former research, this text has determined a model curve of parabola and straight line. The peak stress and strain has also been computed by regression. Further the expression of stress-strain model for CFRP confined preloaded concrete was deserved. Because the preload has been considered in the expression, it is more closer to the real engineering.