To　solve　the　problem　of　comparison　between　calculation　and　test　of　steel　braced　frame-bent　structure　model,　and　to　study　the　dynamic　characteristics　and　seismic　response　of　steel　braced　frame-bent　structure　system,　the　SAP2000　software　was　used　to　establish　the　finite　element　model　of　prototype　structure　and　improve　the　original　design　based　on　the　structural　design　and　PKPM　calculation　model　of　a　large　electrical　power　plant.　Aiming　at　the　structural　system　with　complex　mass　and　stiffness　distribution　characteristics,　the　design　principles　and　relevant　technical　measures　of　shaking　table　test　physical　model　to　meet　the　requirements　of　structural　dynamic　characteristics　consistency　were　proposed.　The　structural　design,　finite　element　modeling　analysis　under　the　same　condition　and　physical　model　processing　were　completed　for　the　scaled　structure　model.　Through　the　shaking　table　test　of　physical　model　and　the　time-history　analysis　of　finite　element　model,　the　first　three　order　dynamic　characteristics　of　the　prototype　structure　and　the　shaking　table　test　model　were　basically　consistent　with　the　results　of　the　finite　element　modal　analysis.　The　dynamic　response　of　the　experimental　structure　model　under　the　action　of　seismic　wave　and　the　time-history　analysis　results　of　finite　element　model　were　mutually　verified.　Results　show　that　the　design　principle　of　shaking　table　test　model　proposed　in　this　paper　is　effective,　and　the　results　of　test　and　calculation　analysis　can　be　verified　mutually,　which　can　provide　a　basis　for　further　study　of　seismic　performance　of　structures　and　improvement　of　structural　design.　©　2022,　Editorial　Department　of　Journal　of　Beijing　University　of　Technology.　All　right　reserved.