Sketch a G+1 residential plan according to Vaastu Shastra and Calculation of Loads as per IS code
AIM
- To sketch a G+1 floor residential plan according to Vasstu Shastra
- To list down the names of the structural drawings required to be provided to the site for construction
- To assume the sizes of the structural elements and calculate the loads from the members as per IS code
INTRODUCTION
Vaastu Shaastra is an ancient Indian science of architecture. It act as a guideline to design homes in a way as to enhance positive energy. Nature has abundant energy sources like Sun, wind, moon, earth, fire etc., and our life is affected by the effect of sunrays, flow of winds, pull of earth's magnetic field, and many other cosmic energies. The right kind of energy is to be radiated within and through the house and any other buildings. A person dwelling inside a house is subjected to the influence of a specific energy filed. So it is important to construct the house in such a way as to satisfying the basic necessities of Vaastu Shastra.
The list of the structural drawings required to be provided to the site for construction are as follows:
- Centre line drawing
- Footing and column layout with reinforcement details
- Column schedule with reinforcement details
- Plinth beam layout with reinforcement details
- Fisrt floor beam layout with reinforcement details
- Fisrt floor slab layout with reinforcement details
- Lift pit headroom reinforcement details
PROCEDURE
(a) For skecthing the plan (Residential floor plan is attached below and all dimensions are in metre)
The G+1 floor residential plan is to be sketched according to Vaastu Shaastra. There are eight significant directions considered in Vaastu Shaastra including four cardinal directions and four intercardinal directions. These directions are;
Cardinal directions - North, South, East, West
Intercardinal directions - Northeast, Northwest, Southeast, Southwest
It is according to these directions, a house plan is drawn and each direction is guided by various Gods; North for wealth, South for dharma, West and East for overall prosperity. The residential plan should be drawn according to the basic principles of Vaastu Shaastra which is listed as follows;
- Rooms should be preferably square or rectangular.
- Rooms should be airy, well lighted, bright and clean.
- Home centre should be an empty space.
- Heavy furnitures should be kept in Southwest direction. It is also good to place stair in this direction.
- Plants and water features should not be kept in bedrooms.
- Dining table should be near the kitchen and should not be placed near the main door.
- Mirror should not be placed in front of bed.
Auspicious directions as per Vaastu Shastra
- Kitchen - Southeast is best, Northeast should be avoided
- Staircase - Southwest is best, Northeast should be avoided
- Toilet - Northwest is best, Northeast should be avoided
- Master bedrrom - Southwest is best
- Guest room - Northwest is best
- Livingroom - Northwest is best
- Overhead tanks - West is best
- Underground tank - Northeast is best, Southwest should be avoided
(b) For calculation of load
After the plan is drawn, the load for individual members is to be calculated. Before that, the dimensions for the structural members is assumed.
Then, let us assume that,
Size of all column = (300 x 300)mm
Size of all beams = (300 x 450)mm
Thickness of all slab = 125mm
Height of wall = 4.5m
Thickness of exterior wall = 230mm
Thickness of exterior wall = 150mm
To calculate the load, the following IS codes are used:
- IS 875 (part 1):1987, for dead load
- IS 875 (part 2):1987, for live load
- IS 875 (part 3):1987 for wind load
(i) Dead load calculation
(a) For columns
Assume that the height of coulmn is equal to the height of wall, that is 4.5m.
Then, dimension of column = 300mm x 300mm x 4.5m
Unit weight of RCC = 25 KN/m²
Therefore, dead load of one column = Unit weight x volume of concrete
= 25 x 0.3 x 0.3 x 4.5
= 10.125 KN
(b) For beams
Dimension of beam = 300mm x 450mm
Unit weight of RCC = 25 KN/m²
Therefore, dead load of one beam = Unit weight x length x breadth
= 25 x 0.3 x 0.45
= 3.375 KN/m
(c) For exterior wall
Thickness of exterior wall = 230mm
Height of wall = 4.5m
Unit weight of brick wall = 20 KN/m²
Therefore, dead load of exterior wall = Unit weight x height x thickness of wall
= 20 x 4.5 x 0.23
= 20.7 KN/m
(d) For interior wall
Thickness of exterior wall = 150mm
Height of wall = 4.5m
Unit weight of brick wall = 20 KN/m²
Therefore, dead load of exterior wall = Unit weight x height x thickness of wall
= 20 x 4.5 x 0.15
= 13.5 KN/m
(e) For slab
Thickness of slab = 125mm
Unit weight of RCC = 25 KN/m²
Therefore, dead load of exterior wall = Unit weight x slab thickness
= 25 x 0.125
= 3.125 KN/m²
(f) For ceiling
Dead load for ceiling = 0.25 KN/m² (table 2, IS 875(part 1):1987)
(g) For roofing
Dead load for roofing = 0.83 KN/m² (table 2, IS 875(part 1):1987)
(h) For finishing
Dead load for finishing = 1 KN/m² (table 2, IS 875(part 1):1987)
(ii) Live load calculation
Live load is calculated as per table 1 of IS 875(part 2):1987. Then,
For all rooms except stair, live load = 2 KN/m²
For stair, liveload = 3 KN/m²
(iii) Wind load calculation
Wind load can be calculated as per IS 875(part 3):1987. As per IS code, wind load is to be calculated for buildings with height exceeding 10m. Here, the height is less than 10m and therefore, wind load calculation can be ignored.
RESULT
- G+1 residential floor plan is sketched according to Vaastu Shastra.
- Structural drawings required to be provided at construction site is listed.
- Loads on individual members are calculated as per IS code provision
- Dead load on colulm is 10.125 KN
- Dead load on beam is 3.375 KN/m
- Dead load on exterior wall is 20.7 KN/m
- Dead load on interior wall is 13.5 KN/m
- Dead load on slab is 3.125 KN/m²
- Dead load for ceiling is 0.25 KN/m²
- Dead load for roofing is 0.83 KN/m²
- Dead load for finishing is 1 KN/m²
- Live load for all rooms except stair = 2KN/m²
- Live load for stair = 3 KN/m²