Design Code,EC2BS8110CP65     

PS Slab h, 90 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 205 210 215 220 225 230 235 240 245 250 255 260 265 270 275 280 285 290 295 300 305 310 315 320 325   mm     PS Slab b, 1200 500 525 550 575 600 625 650 675 700 750 800 825 850 875 900 925 950 1000 1025 1050 1075 1100 1125 1150 1175 1200 1225 1250 1275 1300 1325 1350 1375 1400 1425 1450 1475 1500 1525 1550 1575 1600 1625 1650 1675 1700 1725 1750 1800 1850 1875 1900 1950 1975 2000 2025 2050 2075 2100 2125 2150 2175 2200 2225 2250 2275 2300 2325 2350 2375 2400 2425 2450 2475 2500 2525 2550   mm     Cover, 30 25 20 25 27 30 32 35 37 40 42 45 47 50 52 55 57 60   mm    

Concrete CUBE strength at transfer, f_cu.transfer 30 25 26 28 30 32 35 37 38 40 42 43 44 45 46 47 48 49 50   N/mm2 ,     at topping, f_cu.topping 35 30 32 35 37 38 40 42 43 44 45 46 47 48 49 50 52 53 54 55 56 57 58 59 60   N/mm2 ,     at service, f_cu.service 40 35 37 38 40 42 43 44 45 46 47 48 49 50 52 53 54 55 56 57 58 59 60   N/mm2    

φ_strands , 9.53 12.9 15.2   mm2     f_pst = 1860   N/mm²    

Max initial prestress = f_{pst_initial} = 70 75   % of f_pst     % loss = 25 20 25 30   %    

Rebars, 500 410 460 500   N/mm2     BRC, 500 410 460 485 500   N/mm2    

φ_rebars , 0 10 12 13 16 20 25   mm     rebar_spacing , 100 125 150 175 200 225 250 275 300 350 400 450 500 550 600   mm c/c     φ_mesh , 0 8 10 12 13   mm     mesh_spacing , 100 150 200 175 250 300   mm c/c    

Span during service stage, L_s = m    

Nos of equal span props during topping stage, N_props = 0 1 2 3   nos     note
- loaded length will be L_span/(N_props -1 )    

at service stage
design slab with uniformly distributed LL and sdL as: Simply Supported End Span Interior Span      

topping, h_topping = 75 50 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 200 210 215 225 230 250 260 265 270 275 280 290 300   mm    

Live Loads, LL = 3 0 0.5 1 1.25 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14 14.5 15 15.5 16 16.5 17 17.5 18 18.5 20 21 22 23 24 25 26 27 28 29 30 32 34 35 200   kN/m2     Constructio Live Loads, LL_topping = 3 0 1 1.5 2 2.5 3 3.5 4 4.5 5 7.5 10   kN/m2     sdL= 1.20 0.00 0.25 0.50 0.75 1.00 1.20 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00 5.25 5.75 6.00 6.25 6.50 6.75 7.00 7.25 7.50 7.75 8.00 8.25 8.50 8.75 9.00 9.25 9.75 10.00 10.25 10.50 10.75 11.00 11.25 11.50 11.75 12.00 12.25 12.75 13.00 13.25 13.50 13.75 14.00 14.25 14.50 14.75 15.00   kN/m2    

Bearing length, L_b 50 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175   mm