Experimental Study on the Seismic Behaviour of Reinforced Concrete Bridge Piers Strengthened by BFRP Sheets

Table 6

Equivalent viscous damping coefficient of specimens.

Specimen	Energy dissipation ED (kN·mm)	Elastic energy dissipation Ee (kN·mm)	Equivalent viscous damping ratio ξeq
NU-1	2517.30	1327.42	0.30
NU-2	3685.23	1646.62	0.36
LU-2	2275.50	1248.82	0.29
NC-1	2327.78	1178.45	0.31
NC-2	2973.72	1416.84	0.34