Sketch a G+1 residential plan according to Vaastu Shastra and Calculation of Loads as per IS code
Sketch a G+1 floor residential plan, according to Vaastu Shastra, and list down the names of the structural drawings required to be provided to the site for construction.
Also, assume the sizes of the structural elements (Column, Beam, Slab, etc.,) and accordingly calculate the individual corresponding loads from the members as per IS code.
A:
- A:
we know that the Self-weight of Concrete is around 2400 kg/m3, which is equivalent to 24.54 kN/m3and the Self-weight of Steel is around 7850kg/m3.
So, if we assume a column size of 300 mm x 300 mm with 1% steel and 2.55meters standard height, the self-weight of the column is around 1000 kg per floor, which is equal to 10 kN.
- Volume of Concrete = 0.30 x 0.30 x 2.55 =0.2295m³
- Weight of Concrete = 0.2295 x 2400 = 550.80 kg
- Weight of Steel (1%) in Concrete = 0.2295 x 1% x 7850 = 1801.575kg
- Total Weight of Column = 1101.60 +1801.575 = 2903.175 kg = 29.03 KN
While doing calculations, we assume the self weight of columns is between 10 to 12 kN per floor.
we assume each meter of the beam has dimensions of 300 mm x 450 mm excluding slab thickness.
Assume each (1m) meter of the beam has dimension
- 300 mm x 450 mm excluding slab.
- Volume of Concrete = 0.30 x 0.450 x 1 =13.5 m³
- Weight of Concrete = 13.5 x 2400 = 32400 kg
- Weight of Steel (2%) in Concrete = 13.5 x 2% x 7850 = 2119.5 kg
- Total Weight of Column = 32400 + 2119.5= 32619.5 kg/m = 32.616 KN/m
So, the self-weight will be around 32.619 kN per running meter.
we know that the Density of bricks varies between 1800 to 2000 kg/m3.
For a 230 mm thick Brick wall of 2.55-meter height and a length of 1 meter,
The load / running meter to be equal to 0.230 x 1 x 2.55 x 2000 = 1173 kg/meter,
which is equivalent to 11.50 kN/meter.
This method can be adopted for load calculations of Brick per running meter for any brick type using this technique.
For aerated concrete blocks and autoclaved concrete (ACC) blocks, like Aerocon or Siporex, the weight per cubic meter is between 550 to 650 kg per cubic meter.
The load/running meter to be equal to 0.230 x 1 x 2.55 x 650= 381.23 kg
if you are using these blocks for construction, the wall loads per running meter can be as low as 3.74 kN/meter, use of this block can significantly reduce the cost of the project.
Let, Assume the slab has a thickness of 125 mm.
So, the Self-weight of each square meter of the slab would be
Slab Load Calculation = 0.125 x 1 x 2400 = 300 kg which is equivalent to 30.0 kN.
If we consider the Floor Finishing load to be 1 KN per meter, superimposed live load to be 2 KN per meter, and Wind Load as per Is 875 Near about 2 KN per meter.
So, from the above data, we can estimate the slab load to be around 8 to 9 kN per square meter.
Load Calculation on Column:
we know that the Self-weight of Concrete is around 2400 kg/m3, which is equivalent to 240 kN and the Self-weight of Steel is around 8000 kg/m3.
So, if we assume a column size of 300 mm x 300 mm with 1% steel and 3 meters standard height, the self-weight of the column is around 1000 kg per floor, which is equal to 10 kN.
- Volume of Concrete = 0.3 x 0.3 x 3 =0.27m³
- Weight of Concrete = 0.27 x 2400 = 648kg
- Weight of Steel (1%) in Concrete = 0.414x 0.01 x 8000 = 33.12 kg
- Total Weight of Column = 648 + 33.12 = 681.12 kg = 68.11KN
Wall Load Calculation
- The density of brick walls with mortar is about ranging between 1600-2200 kg/m3. So we consider the self-weight of the brick wall as 2200 kg/m3 in this calculation.
- Volume of brick wall: Volume of brickwall = l × b ×h, Length = 1 meter, Width = 0.152 mm, Height of wall = 4.5 meter, Volume = 1m× 0.152 m× 4.5 m, Volume of brick wall = 0.684m3
- Dead load of brick wall: Weight = volume × density, Dead load = 0.984 m3 × 2200 kg/m3, Dead load = 2164.8 kg/m
- It will be converted into kilo Newton by dividing with 100 we will get 21.648 kN/m
- So dead load of a brick wall is about 21.648 kN/m acting on column.
Beam Load Calculation
- 300 mm x 450 mm excluding slab thickness.
- Volume of Concrete = 0.30 x 0.45 x 1 =0.135m³
- Weight of Concrete = 0.135 x 2400 = 432 kg
- Weight of Steel (2%) in Concrete = 0.135 x 2% x 7850 = 21.195 kg
- Total Weight of Column = 324 +21.195= 345.195 kg/m = 34.519 KN/m
Column Load:
A column is an essential structural member of the RCC structure that helps transfer the superstructure’s load to the foundation. It is a vertical compression member subjected to direct axial load and its effective length is three times larger than its least lateral dimension.
Dead Load Calculation for a Building
Dead load = volume of member x unit weight of materials.By calculating the volume of each member and multiplying by the unit weight of the materials from which it is composed, an accurate dead load can be determined for each component.