Sketch a G+1 residential plan according to Vaastu Shastra and Calculation of Loads as per IS code
AIM : To draw a G+2 residential building structure, to name thjevarious structural drawing required on site for the construction & to determine the different loads on the structure.
PROCEDURE :
Sketch of a G+2 floor residential plan is attached .
The structural drawings required to be provided on site for the construction are as follows
- Foundation excavation plan
- Footing section
- Ground floor column plan
- Column section
- Ground floor plinth beam
- Plinth beam section
- Ground floor beam
- Beam section
- Ground floor slab bottom & top rebar
same drawings required as per floor thar are mentioned above
The loading calculations for the resedential building are as follows
Assumptions required for the loading calculations are as follows :
- G+2 residential building
- Beam size 230x450 mm (No. of beams as per drawing = 78
- column size 230x380 mm (rctangular section ) (No. of columns as per drawing = 19)
- slab 125 mm thickness
- floor to floor height 3 m
- location of structure = Pune
A. Dead load calculations : (as per IS 875 Part 1)
i. Beam (no. of floor =3)
Dead load = density x widthxdepth
Dead load = 25x0.23x0.45
Dead load = 2.58 KN/M
Toatl dead load = dead load x no. of beam
Total dead load = 2.58x26x3
Total dead load = 201.285 KN/M
ii. Column
Dead load = density xwidthxdepth
Dead load = 25x0.23x0.38
Dead load = 2.185 KN/M
Total dead load = Dead load x no. of column
Total dead load = 2.185x19
Total dead load = 41.515 KN/M
iii. Slab
Dead load = density x thickness
Dead load = 25x0.125
Dead load = 3.125 kn/m^2
Total dead load = Dead load x no. of floor
Total dead load = 3.125x3
Total dead load = 9.375 KN/M ^2
iv. Wall
Dead load = density x height x thickness
Dead load = 20x3x0.23
Dead load = 13.8 KN/M
Total dead load = Dead load x no. of floor
Total dead load = 13.8x3
Total dead load = 41.4 KN/M
B. Live load calculations : (as per IS 875 part 2, Table no.1 )
i. live load for living room = 2 KN/M^2 (No. of rooms in building = 2 ) hence live load of living room = 2x2 = 4 KN/M^2
ii. live load for kitchen = 2 KN/M^2 (No. of rooms in building = 2 ) hence live load of living room = 2x2 = 4 KN/M^2
iii. live load for bedroom = 2 KN/M^2 (No. of rooms in building = 8 ) hence live load of living room = 2x8 = 16 KN/M^2
iv. live load for bathroom = 2 KN/M^2 (No. of rooms in building = 2 ) hence live load of living room = 2x2 = 4 KN/M^2
v. live load for balcony = 3 KN/M^2 (No. of rooms in building = 6 ) hence live load of living room = 3x6 = 18 KN/M^2
vi. live load for staircase = 3 KN/M^2 (No. of rooms in building = 2 ) hence live load of living room = 3x2 = 6 KN/M^2
vii. live load for toilet = 2 KN/M^2 (No. of rooms in building = 6 ) hence live load of living room = 2x6 = 12 KN/M^2
Total live load = 64 KN/M^2
C. Wind load calculations :(as per IS 875 part 3 )
Factors considered according to the structure & loaction as follows:
Region = pune
Height of each storey = 3 m
Terrain category = 4
Topography = flat
Bay distance = 3.65 m
To identify wind load the followings should be determined
i. Design wind speed
ii. Design wind pressure
iii. Wind load
i. Design wind speed: ( as per IS 875 Part 3, cl 6.3)
vz= vbxk1xk2xk3xk4
vb= wind velocity
k1 = probability factor
k2 = terrain roughness factor
k3 = topography factor
k4 = importance factor
vb =39x1x1x1x0.8
vb = 31.2 m/s
ii. Design wind pressure : ( as per IS 875 Part 3, cl 7.2)
pz=0.6xvz^2
pz= design wind pressure
vz = wind speed
pz = 0.6x31.2^2
pz = 0.584 KN/M^2 ( @ for 3 m )
pz = 0.584 KN/M^2 ( @ for 6 m )
iii. Wind load for whole building : ( as per IS 875 Part 3, cl 7.4)
f = cf x Aex pz
cf = force coefficient for the building
Ae = effective frontal width for 1 m width = spacing of bay x 1m height = 3.65x1 = 3.65 m^2
cf depends on lateral dimensions & height of building
a/b=1 ( as per IS 875 Part 3, pg no. 35)
a & b = lateral dimensions of building
h/b=0.77 ( as per IS 875 Part 3, pg no. 35)
h= height of building
cf = 1 ( as per IS 875 Part 3, pg no. 35)
Therefore wind load f :
f= 1x3.65x0.584
f=2.13 KN/M
Wind load distribution according to floor :
wind load @ ground floor = wind load x height of floor = 2.13x3 = 6.39 KN/M
wind load @ first floor = wind load x height of floor = 2.13x3 = 6.39 KN/M
wind load @ second floor = wind load x height of floor = 2.13x3 = 6.39 KN/M
Total wind load = 19.17 KN/M^2
RESULT:
Total dead load = 201.285 KN/M
Total live load = 64 KN/M^2
Total wind load = 19.17 KN/M^2