Traditional CFRP reinforcement often uses full wrapping (100% coverage) or discrete strips (such as spaced wrapping), which can significantly improve strength and ductility, but have high material costs and complex construction.
This study proposes a novel central band confinement strategy that only applies CFRP bands in the central region of the cylinder, reducing fiber usage while retaining core confinement effectiveness.
The previous plan lacked systematic experimental verification and theoretical modeling, which is a knowledge gap area.
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