Experimental Method of Axial Compressive Existing Concrete Columns Strengthened with Externally Bonded FRP
To study the experimental method of axial compressive test of concrete columns in service strengthened with bonding FRP(fiber reinforced plastic), the post-tensioned pre-stressing method was employed to exert initial stress to the specimens before bonding FRP, Then FRP was bonded. Axial loading method of the specimens was that one main jack exerted axial force and two jacks provided stiffness for the specimens. In this way the complete stress-strain curves of specimens was obtained. The results indicated the technical target of axial compressive test of in service concrete columns strengthened with FRP was greatly achieved by using this experimental method.
Qing Yang, Li Hua Zhu, Jing Jing He, Zeng Feng Yan and Rui Ren
H. Z. Kang et al., "Experimental Method of Axial Compressive Existing Concrete Columns Strengthened with Externally Bonded FRP", Advanced Materials Research, Vols. 368-373, pp. 1431-1434, 2012