Flexural Behaviour of Unbonded Posttensioned Concrete Beam Strengthened with Aluminium Alloy Plates

Table 5

Error of the equation and increase of the flexural strength.

No.	Calculated value of mu (MPa)	Experimental value of mu (MPa)	Error (%)	Degree of bearing capacity increase (%)
AL1	164.65	165.89	−0.75	−7.84
AL2	206.74	212.80	−2.93	4.31
AL3	279.84	247.55	11.54	23.78
AS1	107.46	102.55	4.57	22.08
AS2	146.88	135.31	7.88	30.11
AS3	161.64	135.94	15.90	15.20