Staircase Load Calculation
Unit Wt. of Concrete = 25 KN/m3
Riser = 0.148 m Dog legged
Tread = 0.30 m
Width of Staircase = 1.931 m
Slab Thickness = 0.150 m
Step Length = 0.335 m
Live Load = 3 KN/m2
Floor finish load = 1 KN/m2
Type of Staircase Dog legged
For First Flight and 3rd Flight
Length of First Landing = 1.27 m
Length of First Flight = 1.52 m Horizontal length
No. of Steps in 1st Flight = 5 no.s
Inclination = 31°
Incline Length = 1.518/COS(31) = 1.771
For mid Flight
Length of mid Landing = 1.93 m
Length of mid Flight = 0.000 m Horizontal length
No. of Steps in 3st Flight = 0 no.s
Inclination = -
Incline Length = 0/COS(-) = 0.000
For First Flight
Volume of Concrete = [(1.273 X 1.931)+(1.77094949697287 X
1.931)+(1.93 X 1.931)]X0.15+(0.5X0.148X0.3X1.931)X5 = 1.655 m3
Total Dead Load = 1.65504547179819 X 25 = 41.376 KN
Dead Load per width = 41.3761367949548/1.931 = 21.427 KN/m
Live Load 3 KN/m2
Live Load per Width = 3X(1.273+1.77094949697287+1.93) = 14.922 KN/m
Floor Finish 1 KN/m2
Floor Finish per Width = 1X(1.273+1.77094949697287+1.93) = 4.974 KN/m
Total Load per width =
21.4273106136483+14.9218484909186+4.97394949697287) = 41.323 KN/m
Load on each Beam = 41.3231086015398/2 = 20.662 KN/m
For Mid Landing
Volume of Concrete = 0 0.000 m3
Total Dead Load = 0*25 = 0.000 KN
Dead Load per width = 0/1.931 = 0.000 KN/m
Live Load 0 KN/m2
Live Load per width = 0 0.000 KN/m
Floor Finish 0 KN/m2
Floor Finish per Width = 0 0.000 KN/m
0.000 KN/m
Total Load per Width = 0+0+0 =
Load on each Beam = 0/2 = 0.000 KN/m
Dog legged Open Well
Horizontal length
Horizontal length 1.52
Dog legged
Open Well
Staircase Load Calculation
Unit Wt. of Concrete = 25 KN/m3
Riser = 0.148 m
Tread = 0.30 m
Width of Staircase = 1.931 m
Slab Thickness = 0.150 m
Step Length = 0.335 m
Live Load = 3 KN/m2
Floor finish load = 1 KN/m2
Type of Staircase Dog legged
For First Flight and 3rd Flight
Length of First Landing = 1.27 m
Length of First Flight = 1.52 m Horizontal length
No. of Steps in 1st Flight = 5 no.s
Inclination = 31°
Incline Length = 1.518/COS(31) = 1.771
For mid Flight
Length of mid Landing = 1.93 m
Length of mid Flight = 0.000 m Horizontal length
No. of Steps in 3st Flight = 0 no.s
Inclination = -
Incline Length = 0/COS(-) = 0.00
For First Flight
Volume of Concrete = [(1.273 X 1.931)+(1.77094949697287 X
1.931)+(1.93 X 1.931)]X0.15+(0.5X0.148X0.3X1.931)X5 = 1.655 m3
Total Dead Load = 1.65504547179819 X 25 = 41.376 KN
Dead Load per width = 41.3761367949548/1.931 = 21.427 KN/m
Live Load 3 KN/m2
Live Load per Width = 3X(1.273+1.77094949697287+1.93) = 14.922 KN/m
Floor Finish 1 KN/m2
Floor Finish per Width = 1X(1.273+1.77094949697287+1.93) = 4.974 KN/m
Total Load per width =
21.4273106136483+14.9218484909186+4.97394949697287) = 41.323 KN/m
Load on each Beam = 41.3231086015398/2 = 20.662 KN/m
For Mid Landing
Volume of Concrete =
[(0.5*1.93*1.931)+(0*1.931)+(0.5*1.93*1.931)]*0.15+ 0.559 m3
(0.5*0.148*0.3*1.931)*0 =
Total Dead Load = 0.5590245*25 = 13.976 KN
Dead Load per width = 13.9756125/1.931 = 7.238 KN/m
Live Load 3 KN/m2
Live Load per Width = 3*(1.93/2+0+1.93/2) = 5.790 KN/m
Floor Finish 1 KN/m2
Floor Finish = 1*(1.93/2+0+1.93/2) = 1.930 KN/m
Total Load per Width = 7.2375+5.79+1.93 = 14.958 KN/m
Load on each Beam = 14.9575/2 = 7.479 KN/m
