Flexural Behavior of Unbonded Prestressed Concrete Bridge Girders

Table 1

Properties of concrete, rebar, and prestressing strand.

Symbol	Material	Ec (Ep) (MPa)	fcu (MPa)	fy (MPa)	fu (fp) (MPa)
C40	Concrete	3.25 × 10^4	45.41	—	—
A8	Rebar	2.10 × 10^5	—	334.34	445.48
B12, B14, B16		2.01 × 10^5	—	421.7	589.60
7A^s15.2	Prestressing strand	1.95 × 10^5	—	1860	1920