Concrete　filled　steel　tubular　(CFST)　arch　bridges　are　widely　applied　in　the　bridge　engineering　in　China.　Shrinkage　stress　caused　by　the　shrinkage　of　core　concrete　is　an　important　part　of　structure　stress,　and　the　determination　of　the　shrinkage　deformation　value　is　the　key　issue　for　the　calculation　of　the　shrinkage　stress.　With　strength　grade　of　concrete,　content　of　fly　ash,　and　steel　tube　diameter　as　well　as　steel　ratio　as　the　main　parameters,　shrinkage　tests　on　11　CFST　and　2　air-tight　plain　concrete　specimens　were　carried　out.　Test　results　showed　that　the　shrinkage　deformation　of　the　CFST　member　decreased　with　the　increase　of　the　content　of　fly　ash　and　the　steel　ratio,　and　increased　with　the　increase　of　the　strength　grade　of　the　concrete,　while　it　was　little　affected　by　the　diameter　of　the　steel　tube.　Prediction　analysis　of　the　shrinkage　deformation　of　the　specimens　by　the　common　shrinkage　prediction　models　indicated　that　the　ACI　209R-92　model　with　higher　prediction　precision　can　be　used　to　predict　the　shrinkage　of　CFST　members　when　the　content　of　fly　ash　of　the　core　concrete　is　less　than　20%.　When　the　content　of　fly　ash　is　greater　than　20%,　correction　of　the　model　is　required　as　the　prediction　value　would　be　higher.　The　prediction　results　by　CEB-FIP　MC90　model　and　CEB-FIP　MC78　model　were　significantly　smaller　than　the　tested　ones.　Analysis　of　shrinkage　stresses　of　CFST　arch　bridges　showed　that　the　shrinkage　self-stress　was　large　and　should　be　taken　into　account　in　design　calculation,　whereas　the　secondary　shrinkage　stress　was　small　and　could　be　ignored　in　stress　estimation　during　preliminary　design.　The　use　of　equivalent　cooling　method,　commonly　used　for　calculation　of　shrinkage　effect　of　concrete　arch,　should　be　discouraged　in　the　design　calculation　of　shrinkage　effect　of　a　CFST　arch　due　to　large　variation　range　of　shrinkage　deformation,　difficulty　to　determine　an　equivalent　cooling　value,　and　inability　to　calculate　the　shrinkage　self-stress　which　accounts　for　a　large　proportion　of　the　shrinkage　stress.　©　2016,　Science　Press.　All　right　reserved.