The　rigid　bracing　dome　is　a　new　type　of　structural　system　proposed　based　on　the　cable　dome　in　recent　years.　It　replaces　the　cables　in　the　lower　part　of　the　cable　dome　with　high-strength　steel　tie　rods,　which　not　only　retains　the　advantages　of　attractive　appearance　and　lightness　of　the　cable　dome,　but　also　overcomes　the　difficulty　of　bar　positioning　in　the　process　of　cable　dome　construction　and　forming.　The　problem　that　the　structure　has　no　integral　stiffness　due　to　no　prestress　of　the　bar　is　also　solved.　To　investigate　the　self-vibration　characteristics　of　the　Levy-type　rigid　bracing　dome,　a　Levy-type　rigid　bracing　dome　with　a　6m　span　was　designed　and　stretched　and　formed　at　the　test　site.　The　error　is　within　1%　between　the　measured　actual　internal　force　and　the　designed　internal　force.　Taking　this　experimental　model　as　the　research　object,　the　self-vibration　characteristics　at　three　kinds　of　load　conditions(the　initial　pre-stress,　full-span　load　and　half-span　load　of　structure)　were　measured　by　the　sinusoidal　excitation　method.　The　variation　of　the　self-vibration　characteristics　of　the　structure　under　different　load　conditions　was　obtained.　Results　indicate　that　the　self-vibration　frequency　of　the　Levy-type　rigid　bracing　dome　was　relatively　dense,　which　is　similar　to　the　cable　dome.　This　proves　that　the　structural　form　is　reasonable　and　can　be　formed　by　means　of　tensioning.　The　difference　between　the　theoretical　value　of　the　Levy-type　rigid　bracing　dome　and　the　experimental　value　was　within　±6%　under　different　conditions.　Under　the　condition　of　full-span　load　and　half-span　load　respectively,　the　low-order　frequency　increases　with　the　increase　in　the　load,　and　the　higher-order　frequency　decreases　with　the　increase　in　the　load.　The　damping　ratio　of　the　Levy-type　rigid　bracing　dome　was　basically　between　0.0081　and　0.0132.　The　recommended　damping　ratio　should　be　0.01　in　the　actual　dynamic　response　analysis　process　when　a　structure　has　a　similar　structural　form　to　the　Levy-type　rigid　bracing　dome　test　model.　©　2019,　Editorial　Board　of　Journal　of　Tianjin　University(Science　and　Technology).　All　right　reserved.