The effects of relative displacements between the foundations of a suspension bridge are analysed. A general model is defined, which allows to analyse the structural behaviour under any kind of relative displacement system. The general relation-ships are deduced. Then, in the numerical investigation, the most interesting and likely cases are analysed. The results obtained showed that slow movements cannot create serious problems to the structure in its life time. Anyway, they can became dangerous if their effects will add to those of a very strong earthquake. Therefore, the monitoring of the foundations is suitable as well as the analysis of the effects on the design details.
Tectonic shift effects on suspension bridges
Clemente P.
2004-01-01
Abstract
The effects of relative displacements between the foundations of a suspension bridge are analysed. A general model is defined, which allows to analyse the structural behaviour under any kind of relative displacement system. The general relation-ships are deduced. Then, in the numerical investigation, the most interesting and likely cases are analysed. The results obtained showed that slow movements cannot create serious problems to the structure in its life time. Anyway, they can became dangerous if their effects will add to those of a very strong earthquake. Therefore, the monitoring of the foundations is suitable as well as the analysis of the effects on the design details.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
