All about civil construction knowledge- PARAM VISIONS

How to calculate the total load over the RCC slab?/Calculating the factored load of a RCC slab.

 Let us calculate the total load over the RCC slab as shown below.






Given data:

Length of slab = 4500mm.=4.5m.

Width of slab = 3000mm. = 3.0m.

Slab thickness = 125mm. = 0.125m.


Calculation:

Total load over the slab

= [dead load + live load]

Where,

1. Dead load 

= [self wt. of slab + floor finish]


a. Self wt. of slab

   = [(volume of the slab) x density]

   = [(length x breadth x thickness) x 25KN/m³]

   = [( 4.5m. x 3.0m. x 0.125m.) x 25KN/m³]

   = [1.6875m³  x 25KN/m³]

  = 42.19KN.


b. Total load of floor finish

= [area of slab x wt. of floor finish /m².]

= [ (length x breadth)  x 1.5KN/m²]

= [(4.5m. x 3.0m.) x 1.5KN/m²]

= [13.5m² x 1.5KN/m²]

= 20.25KN.


Total dead load 

= [self wt. of slab + floor finish]

= [42.19KN + 20.25KN]

= 62.44KN.


2. Total live load over the slab

   = [area of slab x live load /m².]

   =  [ (length x breadth)  x 4KN/m²]

  = [(4.5m. x 3.0m.) x 4KN/m²]

  = [13.5m² x 4KN/m²]

 = 54KN.


Total load over the slab

= [dead load + live load]

= [62.44 + 54]

= 116.44 KN 


Total load over the slab in kg.

= [116.44 KN x 101.97]

= 11,873.39 kg.


Factored load of RCC slab

Wu = [1.5 x total load]

= [1.5 x 116.44]

Wu = 174.66 KN.


Factored load of RCC slab per unit area

W = [ total factored load ÷ area of slab]

      = [ 174.66  ÷ (4.5 x 3)]

 W = 12.94KN/m²

   

Thank you for going through these calculation steps. Have a good day 😄.


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