Seismic Retrofit of a Multispan Prestressed Concrete Girder Bridge with Friction Pendulum Devices

Table 1

Class of concrete used for each structural part.

Structural part	Concrete
	Type	Strength class	[MPa]	[MPa]
Box girders	Prestressed	C45/55	45	55
Transverse beams, deck slab	Reinforced	C28/35	28	35
Columns	Reinforced	C25/30	25	30
Foundations	Reinforced	C20/25	20	25