To　study　how　varying　the　parameters　of　expansion　joints　and　bearing　supports　(E-B　parameters)　affects　the　dynamic　response　of　a　coupled　vehicle-bridge　system　for　curved　girder　bridges,　a　dynamic　response　analysis　method　for　the　coupled　vehicle-joint　(bearing)-bridge　system,　which　takes　into　account　centrifugal　forces,　was　proposed　and　verified.　Subsequently,　taking　a　continuous　curved　box　girder　bridge　as　the　prototype,　the　influence　of　the　E-B　parameters　on　the　vehicle-induced　dynamic　response　of　the　curved　girder　bridge　was　explored.　The　results　showed　that　the　dynamic　amplification　factor　(DAF)　of　the　middle　beam　of　the　expansion　joint　(DAF-EJ)　and　the　main　girder　of　the　curved　bridge　(DAF-MG)　were　both　significantly　influenced　by　the　E-B　parameters.　When　there　were　height　differences　between　the　middle　beam　and　side　beam　in　the　EJ,　the　DAF-EJ　obviously　varied,　and　the　DAF-MG　increased.　When　the　EJ　was　damaged,　the　impact　effect　of　the　vehicle　on　the　bearing　support　increased.　The　DAF-EJ　and　DAF-MG　both　increased　with　the　decrease　of　the　vertical　support　stiffness　of　the　bearing　support.　The　DAF-EJ　was　greatly　affected　by　the　single-support　void　at　the　near-slit　end　of　the　lane.　The　DAF-MGs　at　the　beam　end,　the　1/4　point　and　1/2　point　of　the　first　span,　and　the　1/2　point　of　the　second　span,　were　significantly　affected　by　the　single-support　void　near　the　measuring　point.　Compared　with　the　single-support　void,　the　DAF-EJ　and　DAF-MG　more　significantly　increased　under　the　double-support　void.　Variation　in　the　height　difference　of　the　EJ　had　a　more　significant　effect　on　the　DAF-EJ　and　DAF-MG　at　the　beam　end,　while　a　vertical　stiffness　reduction　in　the　bearing　support　had　a　more　significant　effect　on　the　DAF-MG.