Safe Bridge Barriers Tested and Simulated to EN 1317 and MASH with Low Forces Transmitted: Australian Example Compared with European Union Example

摘要

Historically in Europe, the loads transmitted to a bridge deck by a vehicle restraint systemrn(VRS) were prescribed by a table such as Table 4.9(a) of EN 1991-2 (Table 1). Because ofrnthe Europeans’ experience in crash testing, it is now known that different VRS will impartrndifferent loadings on a bridge deck and, as such, tables like the one below are inadequate forrnbridge deck design purposes.rnBetter methodologies have been developed to determine loads on bridge decks transferredrnby a VRS. This paper will illustrate some of these methodologies and is focused on one that hasrnbeen recently upgraded in Belgium to become the M_d – V_d curve methodology detailed below.rnThis paper will also apply the M_d – V_d curve methodology to a specific reference VRS widelyrnused in Australia and another one recently developed in Europe.