Sketch a G+1 residential plan according to Vaastu Shastra and Calculation of Loads as per IS code
Structural drawing required in construction project -
1) Centre line drawing
2) Footing and column layout with reinforcement details
3) Column schedule with reinforcement details
4) Plinth beam layout with reinforcement details
5) First floor beam layout with reinforcement details
6) First floor slab layout with reinforcement details
7) Lift pit and headroom reinforcement details
Room dimensions - for Ground floor -
1) Room 1 - Living room = 4.0m*8.0m
2) Room 2 - kitchen = 4.0m*7.0m
3) Room 3 - Bed room = 4.0m*5.0m
4) Room 4 - Bed room = 4.0m*5.0m
Room dimensions - for first floor -
Column size = 300mm*300mm
Beam size = 300mm*450mm
Slab thickness = 125mm
Height for ground floor = 4.5m
Height for first floor = 3m
Dead load calculations -
1) Column -
Size of column = 300mm*300mm
Volume of column = 0.3*0.45*4.5
= 0.405 m^3
Unit weight of rcc = 25 kn/m^3
Dead load of one column = 25*0.405
= 10.125 kn
Total number of column = 11
Dead weight of 11 columns = 11*10.125
Dead load of 11 column = 111.375 kn
2) Beam -
Size of beam = 300mm*450mm
1) Volume = 0.3*0.45*1*6 = 0.81 m^3
2) Volume = 0.3*0.45*1*2 = 0.27m^3
3) Volume = 0.3*0.45*1*3 = 0.405 m^3
4) Volume = 0.3*0.45*1*1 = 0.135m^3
Total volume = 1.62 m^3
Unit weight of rcc = 25 kn/m^3
Dead load of beam = 25*1.62= 40.5 kn
3) Slab -
Thickness of slab = 125mm
Volume = 4.3*12.6*0.125 = 6.78 m^3
volume = 4.3*13.6*0.125 = 7.31 m^3
Total volume = 14.09 m^3
Unit weight of rcc = 25 kn/m^3
Dead load of slab = 25*14.09
Dead load of slab = 352.25 kn
Total dead load of column,beam and slab = 111.375+40.5+352.25
Total dead load = 504.125 kn
Live load calculations -
From IS code 875 of part 2 -
The Live load for residential building = 2 kn/m^2
Wind load calculation -
The intensity of wind load depend upon velocity of wind,size and height of building.
The wind load is considered to be act uniformly upto a height of 30m.
and above 30m,wind load intensity is increased.
Design wind pressure is calculated by -
Pz = 0.6 Vz ^2
where, Pz = Wind pressure @ height z,in n/m^2
Vz = Design wind speed @ height z,in m/s
Vz is calculated by -
Vz = Vb*k1*k2*k3*k4
Where, Vb = basic wind speed
k1 = Probabilty factor or Risk coefficient
k2 = Terrian roughness
k3 = Topography factor
k4 = Importance factor
k1 - The value of k1 is from IS 875 of part 2 clause 6.3.1 of table 1
k2 - The value of k2 is from IS 875 of part 2 clause 6.3.2 of table 2
k3 - The value of k3 is from IS 875 of part 2 clause 6.3.3
k4 - The value of k4 is from IS 875 of part 2 clause 6.3.4
Vb = 44 (nagpur from table)
k1 = 1
k2 = 0.82 (from category 3,terrian with numerous closely spaced height upto 10m.)
k3 = 1
k4 = 1
Vz = 44*1*0.82*1*1
Vz = 36.08 m/s
Pz = 0.6 Vz^2
= 0.6*36.08^2
Pz = 781.05 n/m^2
Result -
Dead load of ground floor = 672.875 kn
Live load of ground floor = 2 kn/m^2
Wind load of ground floor = 781.05 n/m^2
Load calculation for first floor -
Size of Living room - 4.0m*7.0m
Column size = 300mm*300mm
Beam size = 300mm*450mm
Slab thickness = 125mm
height = 3m
Dead load calculations -
1) Column -
Volume of column = 0.3*0.3*3 = 0.27 m^3
unit weight of rcc = 25 kn/m^3
Dead load of one column = 25*0.27
= 6.75 kn
Total number of column = 6
Dead load of 6 column = 6* 6.75
= 40.5 kn
2) Beam -
Volume of beam = 0.3*0.45*1*2 = 0.27 m^3
Volume of beam = 0.3*0.45*1*2 = 0.27 m^3
Total volume of beam = 0.27+0.27 = 0.54 m^3
Unit weight of rcc = 25 kn/m^3
Dead load of beam = 25*0.54 = 13.5 kn
3) slab -
Thickness = 125mm
Volume of slab = 4.3*7.3*0.125 = 3.923 m^3
Unit weight of rcc = 25 kn/m^3
Dead load of slab = 25*3.923
= 98.07 kn
Total dead load of column,beam and slab = 40.5+13.5+98.07
Total dead load = 152.07 kn
Live load calculation -
Live load for residential building = 2 kn/m^2
Wind load calculations -
Wind pressure is calculated by -
Pz = 0.6 Vz ^2
Vz = Vb*k1*k2*k3*k4
Vb = 44 (Nagpur)
k1 = 1
k2 = 0.82
k3 = 1
k4 = 1
vz = 44*1*0.82*1*1
= 36.08 m/s
Pz = 0.6*36.08^2
= 781.05 n/m^2
Result -
Dead load for first floor = 152.07 kn
Live load for first floor = 2 kn/m^2
Wind load for first floor = 781.05 n/m^2