Let us now calculate the self-weight or dead load of the RCC structures as shown in the drawing.
Given data:
RCC slab
Length = 4m ( Ls )
Width = 3.3m ( Ws )
Thickness = 125mm =0.125m. (Ts )
RCC beam
Length = 4m ( Lb )
Width = 230mm = 0.23m. (Wb )
Depth = 450mm = 0.45m. ( Db )
RCC column
Height = 2.7m. (Hc )
Width = 230mm = 0.23m ( Wc )
Length = 450mm = 0.45m. ( Lc )
The self-weight of any RCC structure is calculated by the formula
= [Unit weight × volume.]
As you know, the unit weight of the RCC structure = D =2500kg/cum.
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1. Self-weight of the slab
Wt. of the slab
= [unit weight× volume of the slab]
= [ D × ( Ls × Ws × Ts )]
= [ 2500kg/cum. × ( 4m. × 3.3m. × 0.125m. )]
= [ 2500kg/cum. × 1.65cum.]
= 4125kg.
2. Self-weight of the beam
Wt. of the beam
= [unit weight × volume of the beam]
= [ D × ( Lb × Wb × Db )]
= [ 2500kg/cum. × ( 4m. × 0.23m. × 0.45m. )]
= [ 2500kg/cum. × 0.414cum.]
= 1035kg.
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👀. Calculating the self-weight of the brick wall.
3. Self-weight of the column
Wt. of the column
= [unit weight × volume of the column]
= [ D × ( Hc × Wc × Lc )]
= [ 2500kg/cum. × ( 2.7m. × 0.23m. × 0.45m. )]
= [ 2500kg/cum. × 0.279cum.]
= 698.63kg.
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Good short explanation mostly used in civil engineering
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