Let us calculate the total load over the** RCC footing RF1 **as shown below.

**Calculation:**

**1. The dead load of the brick wall over PB2**

= [unit weight × (volume of the wall)]

= [unit weight × (length × depth × thickness )]

Here,

Length = [Total span of slab - (2nos.× column length)]

= [3000mm. - (2nos.× 450mm.)]

= 2100mm. = 2.1m.

Depth = 2700mm. = 2.7m.

Thickness = 230mm. = 0.23m.

**The dead load of the brick wall over PB2**

= [ 1920 kg/cum. × (2.1m × 2.7m. × 0.23m.) ]

= **2503.87kg.**

**Also, read ðŸ‘‰ðŸ‘€** **How to calculate the dead load of the brick wall?**

**2. The dead load of the brick wall over PB1**

Here,

Length = [Total span of slab - (2nos.× column length)]

= [4500mm. - (2nos.× 450mm.)]

= 3600mm. = 3.6m.

Depth = 2700mm. = 2.7m.

Thickness = 230mm. = 0.23m.

**The dead load of the brick wall over PB1**

= [unit weight × (volume of the wall)]

= [ 1920 kg/cum. × (3.6m. × 2.7m. × 0.23m.) ]

= **4292.35 kg.**

3. **The total load over the plinth beam PB1**

= [self wt. of PB1 + a dead load of the wall over PB1]

= [ 1164.38kg. + 4292.35kg]

= **5456.73 kg**.

**Note:** The self-wt. of the plinth beam is taken from the article **ðŸ‘‡**

**ðŸ‘€ How to calculate the self-weight of RCC footings & plinth beams?**

3. **The total load over the plinth beam PB2**

= [self wt. of PB2 + a dead load of the wall over PB2]

= [ 776.25kg. + 2503.87kg]

= **3280.12 kg.**

**4. Self wt. of stub column**

= [unit weight × (volume of the stub column)]

Here,

Depth of stub column = 1000mm. = 1m.

Sectional dimension of stub column = 230mm. × 450mm.

= 0.23m. × 0.45m.

**Self wt. of stub column**

= [ 2500kg/m³ × ( 0.23m. × 0.45m. × 1.0m.)]

= **258.75 kg.**

Now,

**Total load over the RCC footing RF1**

= [{Load transferred from column C1} + {1/2 × ( Load from PB1 + load from PB2)} + DL of stub column + Self wt. of footing]

= [ {68.706 × 101.97 } + {1/2 × ( 5456.73 + 3280.12)} + 258.75 + 476]

= [ 7005.95 + 4368.43 + 258.75 + 476 ]

= **12109.13 kg**

= **118.75 KN.**

**( As 101.97kg = 1KN)**

**Note:** The total load from the **column C1** is taken from the article **ðŸ‘‡**

**ðŸ‘€ How to calculate the total load over the columns?**

The self-wt. of the footing is calculated in a separate article **ðŸ‘‡**

** ****ðŸ‘€ How to calculate the self-weight of RCC footings & plinth beams?**

**Factored load over the RCC footing RF1**

= [118.75 × 1.5]

= **178.12 KN**

**Thank you for going through these calculation steps❤. Have a good day ðŸ˜„.**

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