Under　earthquake　action,　the　reinforced　concrete　structure　at　the　edge　of　the　CAP1400　nuclear　power　plant　foundation　slab　will　be　uplifted.　In　order　to　determine　the　seismic　performance　of　this　structure,　a　1　:　12　scale　shaking　table　test　model　was　fabricated　using　gypsum　as　simulated　concrete　in　order　to　meet　scaled　design　requirements.　By　testing　this　model,　the　seismic　response　of　the　structure　with　consideration　of　the　foundation　uplift　was　obtained.　Numerical　analyses　of　the　test　model　and　the　prototype　structure　were　conducted　to　gain　a　better　understanding　of　the　structural　seismic　performance.　When　subjected　to　earthquakes,　the　foundation　slab　of　the　nuclear　power　plant　experiences　a　slight　degree　of　uplift　but　remains　in　the　elastic　stage　due　to　the　weight　of　the　structure　above,　which　provides　an　antioverturning　moment.　The　numerical　simulation　is　in　general　agreement　with　the　test　results,　suggesting　numerical　simulations　could　be　accurately　employed　in　place　of　physical　tests.　The　superstructure　displacement　response　was　found　not　to　affect　the　safety　of　adjacent　structures,　and　the　seismic　performance　of　the　structure　was　shown　to　meet　the　relevant　design　requirements,　demonstrating　that　this　approach　to　modelling　can　serve　as　a　design　basis　for　the　CAP1400　nuclear　power　demonstration　project.