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

Table 1

Parameters of test beams.

No.	Beam width (mm)	Beam depth (mm)	Diameter of reinforcements	β0	βp	βa
AL1	200	400	12	0.128	0.090	0.027
AL2	200	400	18	0.170	0.090	0.069
AL3	200	400	25	0.245	0.090	0.144
AS1	200	300	12	0.159	0.107	0.037
AS2	200	300	18	0.233	0.123	0.095
AS3	200	300	22	0.265	0.123	0.127