The present paper focuses on traffic load definition for road bridge design according to past Italian codes. In particular, starting from the first code of ’33 up to the current Technical Standard for Constructions (NTC2018), several different approaches have been assumed by the codes. Hence, a historical review is firstly proposed and each code is analyzed together with the proposed load schemes. Such a review has allowed the definition of a parametric investigation on typical Italian r.c. decks. In particular, bending moments due to the traffic loads for which the bridges were conceived are investigated, and thus a preliminary estimation of past-to-current design bending moment ratios is carried out with reference to continuous beams.
Evolution of Design Traffic Loads for Italian Road Bridges
Cosentino A.;De Matteis G.
;Morelli F.;Zizi M.
2022
Abstract
The present paper focuses on traffic load definition for road bridge design according to past Italian codes. In particular, starting from the first code of ’33 up to the current Technical Standard for Constructions (NTC2018), several different approaches have been assumed by the codes. Hence, a historical review is firstly proposed and each code is analyzed together with the proposed load schemes. Such a review has allowed the definition of a parametric investigation on typical Italian r.c. decks. In particular, bending moments due to the traffic loads for which the bridges were conceived are investigated, and thus a preliminary estimation of past-to-current design bending moment ratios is carried out with reference to continuous beams.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
