Research Article

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

Table 4

Yielding and ultimate moment values for girders G1 and P1.

GirderExperimental valuesTheoretical values
My,exp., kN·mMu,exp., kN·mACI 318-14 provisionsAASHTO LRFD [3] provisionsStrain compatibility analysis
My,cal., kN·mMu,cal., kN·mMy,cal., kN·mMu,cal., kN·mMy,cal., kN·mMu,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.)

G116961969169118591691185916631941
99.7%94.4%99.7%94.7%98.0%98.6%
P121342326211222452154229321022313
99.0%96.5%101.0%98.6%98.5%99.4%

My and Mu are calculated considering the value of dead load moment.