Over　the　last　decade,　there　was　a　renewed　interest　on　Integral　Abutment　Bridges　(IABs),　characterized　by　the　absence　of　bearing　supports　and　expansion　joints,　leading　to　reduced　construction　and　maintenance　cost　over　ordinary　bridges.　Due　to　monolithic　connections　between　abutments　and　deck,　complex　Soil-Structure　Interaction　(SSI)　phenomena　tend　to　develop　between　bridge　and　backfill　in　static　and　dynamic　conditions,　due　to　thermal　expansion　and　earthquake　action,　respectively.　An　experimental　campaign　was　conducted　using　the　3x3　m　6　DOF　shaking　table　and　the　5　m　long　shear　stack　of　the　University　of　Bristol,　focusing　on　SSI　effects　between　the　IAB　model　and　the　backfill　soil　under　earthquake　loading.　After　a　description　of　test　set-up　and　of　protocol,　preliminary　results　will　be　illustrated　and　discussed.　©　2019　The　authors.