Semiempirical Methodology for Estimating the Service Life of Concrete Deck Panels Strengthened with Fiber-Reinforced Polymer

Table 5

Stress level and test results.

		CON			CFS			GCFRP
Static test	Ultimate loads	633 (kN)			732 (kN)			710 (kN)
	Failure mode	PS^a			PS^a			PS^a
Fatigue test	Stress level (%)	40	70	90	60	70	80	60	70	80
	Loads (kN)	260	450	580	440	510	590	430	500	570
	Number of cyclic loading	10^6	68,834	10	10^6	90,074	19,836	501,982	864,408	20,023
	Failure mode	PS^b	PS^c	PS^c	PS^b	PS^c	PS^c	PS^d	PS^c	PS^c
	Typical failure pattern

Note: PS^a: punching shear failure after yielding of rebar, PS^b: punching shear failure due to static loading, PS^c: fatigue punching shear, and PS^d: fatigue punching shear failure after girder collapse.