FRP Confinement of Heat-Damaged Circular RC Columns

International Journal of Concrete Structures and Materials

Table 1 Test specimens’ designations and test parameters.

Specimen designation	Heating duration (h)	Wrapping scheme		Notes
Specimen designation	Heating duration (h)	CFRP layers	GFRP layers	Notes
Control CH0-A	0	0	0	Unheated; unwrapped
Control CH0-B	0	0	0	Unheated; unwrapped
Control CH0-C1L	0	1	0	Unheated; wrapped with 1 layer of CFRP
Control CH2-A	2	0	0	Heated (2 h); unwrapped
Control CH2-B	2	0	0	Heated (2 h); unwrapped
Control CH3-A	3	0	0	Heated (3 h); unwrapped
Control CH3-B	3	0	0	Heated (3 h); unwrapped
CH2-C1L	2	1	0	Heated (2 h); wrapped with 1 layer of CFRP
CH2-C2L	2	2	0	Heated (2 h); wrapped with 2 layers of CFRP
CH2-G1L	2	0	1	Heated (2 h); wrapped with 1 layer of GFRP
CH2-G2L	2	0	2	Heated (2 h); wrapped with 2 layers of GFRP
CH3-C1L	3	1	0	Heated (3 h); wrapped with 1 layer of CFRP
CH3-C2L	3	2	0	Heated (3 h); wrapped with 2 layers of CFRP
CH3-G1L	3	0	1	Heated (3 h); wrapped with 1 layer of GFRP
CH3-G2L	3	0	2	Heated (3 h); wrapped with 2 layers of GFRP

CH0, unheated column; CH2, column heated for 2 h; CH3, column heated for 3 h; C1L, wrapped with 1 layer of carbon sheets; C2L, wrapped with 2 layers of carbon sheets; G1L, wrapped with 1 layer of glass sheets; G2L, wrapped with 2 layers of glass sheets; A and B, sequential numbering of identical specimens.