Ensuring　the　safety　and　reliability　of　common　reinforced　concrete　hollow　slab　beam　bridges　through　structural　performance　evaluations　is　crucial　for　maintaining　highway　system　functionality,　social　stability,　and　economic　prosperity.　This　paper　presents　field　tests　and　a　structural　performance　evaluation　of　an　existing　hollow　slab　beam　bridge.　First,　a　lateral　load　distribution　test　was　conducted　to　reveal　the　lateral　load　distribution　performance　of　this　bridge.　Second,　a　single-beam　destructive　test　was　conducted　to　investigate　the　structural　performance　of　the　hollow　slab　beams.　A　modified　hinge-connected　slab/beam　method　was　presented　to　estimate　the　actual　stiffnesses　of　hollow　slab　beams　and　hinge　joints,　revealing　the　lateral　load　distribution　performance　and　damage　distribution　of　the　bridge.　On　the　basis　of　the　estimated　actual　stiffnesses　and　experimental　data,　the　flexural　stiffnesses　and　deflections　of　hollow　slab　beams　under　the　serviceability　limit　state　were　evaluated.　In　addition,　the　applicability　of　the　flexural　stiffness　formulas　in　JTG　3362–2018,　AASHTO　LRFD　BDS　and　EN　1992–2　to　the　structural　performance　evaluation　of　existing　bridges　was　assessed.　Moreover,　the　formulas　in　these　standards　were　adopted　to　estimate　the　bending　capacities　of　hollow　slab　beams,　and　their　applicability　was　also　discussed.　This　study　offers　guidance　for　evaluating　the　structural　performance　of　existing　concrete　bridges.　©　2025　Elsevier　Ltd