To　study　the　effects　of　the　glass　fiber　net　and　hybrid　fibers　on　the　bending　behavior　of　ultra-high　perform-ance　con-crete(UHPC)two-way　slabs,　bending　tests　of　simply　supported　slabs　were　conducted　on　four　sides.　Effects　of　glass　fiber　net　layers,　single-doped　steel　fiber(SF),　and　steel　fiber　blended　with　polyvinyl　alcohol(PVA),　glass　fiber(GF),　and　basalt　fi-ber(BF)on　the　failure　mode,　bearing　capacity,　and　flexural　toughness　of　UHPC　slabs　were　studied.　Results　show　that　the　blending　of　1.0%　SF　and　0.5%　PVA(1.0%　SF/0.5%　PVA)fibers　has　the　most　considerable　effect　on　the　reinforcement　and　toughening　of　the　UHPC　slabs　when　the　total　content　of　shortcut　fibers　in　the　UHPC　slab　without　grid　is　1.5%.　Compared　with　UHPC　slabs　doped　with　1.5%　SF,　0.5%　SF/1.0%　PVA,　0.5%　SF/1.0%　GF,　0.5%　SF/1.0%　BF,　and　0.5%　SF/1.0%　BF,　the　ultimate　bearing　capacity　and　energy　absorption　values　at　a　deflection　of　10mm　are　increased　by　33.7%,　53.3%,　43.2%,　117.0%　and　14.3%,　81.8%,　46.1%,　and　107.5%,　respectively.　The　ductility　and　maintained　load　capacity　of　UHPC　slabs　doped　with　1.5%　SF　are　greater　than　those　of　hybrid　fiber　UHPC　slabs.　Compared　with　specimens　without　a　glass　fiber　net,　the　glass　fiber　net　can　effectively　inhibit　the　initiation　and　propagation　of　main　cracks　in　the　UHPC　slabs　and　allow　the　slabs　to　exhibit　deformation-hardening　characteristics.　The　significant　redistribution　of　internal　forces　occurs　in　UHPC　slabs　with　a　net　arrangement,　and　the　ultimate　bearing　capacity　and　flexural　toughness　considerably　increase　with　the　increase　of　net　layers.　The　increase　of　bearing　capacity　and　energy　absorption　of　UHPC　slabs　doped　with　1.5%　SF　gradually　decreases　with　the　in-crease　of　net　layers.　The　strain　hardening　behavior　of　hybrid　fiber　UHPC　slabs　increases　with　the　number　of　net　layers.　The　test　proves　that　the　effective　stress　and　utilization　ratio　of　the　net　are　negatively　correlated　with　the　number　of　layers　of　the　net,　whereas　the　bending　bearing　capacity　is　positively　correlated　with　the　number　of　layers　of　the　net.　The　hybrid　of　1.0%　SF　and　0.5%　PVA　fiber　results　in　the　highest　utilization　ratio　of　the　glass　fiber　net　and　exhibits　the　most　significant　improvement　of　the　bending　capacity　of　UHPC　slabs.　©　2022,　Editorial　Board　of　Journal　of　Tianjin　University(Science　and　Technology).　All　right　reserved.