Behavior of Strengthened Composite Prestressed Concrete Girders under Static and Repeated Loading

Table 4

Yielding and ultimate moment values for girders G1 and P1.

Girder	Experimental values		Theoretical values
	My,exp., kN·m	Mu,exp., kN·m	ACI 318-14 provisions		AASHTO LRFD [3] provisions		Strain compatibility analysis
			My,cal., kN·m	Mu,cal., kN·m	My,cal., kN·m	Mu,cal., kN·m	My,cal., kN·m	Mu,cal., kN·m
			(My,cal./My,exp.)	(Mu,cal./Mu,exp.)	(My,cal./My,exp.)	(Mu,cal./Mu,exp.)	(My,cal./My,exp.)	(Mu,cal./Mu,exp.)
G1	1696	1969	1691	1859	1691	1859	1663	1941
			99.7%	94.4%	99.7%	94.7%	98.0%	98.6%
P1	2134	2326	2112	2245	2154	2293	2102	2313
			99.0%	96.5%	101.0%	98.6%	98.5%	99.4%

M_y and M_u are calculated considering the value of dead load moment.