Design of one way Hollow block slabif ls<7m, then use one way hollow block slabtake ts 0.05 m Ls 5.3 m

h 0.2 m unit weight of concrete 25 KN/m3t 0.25 m Fcu 35 N/mm2

Fy 360 N/mm2weight of block 0.16 kN F.c 1.5 KN/m2

L.L 3 KN/m2e 0.4 m B 500 mmb 0.1 ms 0.5 m

1 4.3252 0.73 1.12

(wrib)u.l 6.145 KN/(1.0*sm2)

M 21.57663125 KN.m/rib

d 220 mm

C1 6.27

take j from the table and then calculate As j 0.826As 330 mm2/rib

Desing by: Engr. Shams Ur RehmanDesign Engineerhttps://www.facebook.com/shams.marwat.5dubai.shams143@gmail.com