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Pre-stressed CFRP laminate improve the flexural rigidity

1.The prestressed CFRP plate makes the concrete(because of the crack is out of work) in the lower part become the effective section

1.The prestressed CFRP plate makes the concrete(because of the crack is out of work) in the lower part become the effective section 

prestressed CFRP plate



2.Formation of anti arch, counteract the deformation.

Stiffness B1=M/ (f1+f2)

Post prestressed stiffness B2=M/ (F1)

B2＞B1

prestressed CFRP plate


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