Seismic behaviour of the romanian danube bridges

摘要

The paper summarises the philosoph used by the seismic design of the romanian Danube bridges; these is similar to that adopted for the design of building structures,with the additional requirement that these bridges should be serviceable after the seismic event.Some aspects concerning the aseismic bridge design concepts are presented.The bridges behaviour at the big earthquakes in 1977,1986 and 1990 validated the general design concepts and the chosen aseismic protection.