Sketch a G+1 residential plan according to Vaastu Shastra and Calculation of Loads as per IS code

Aim- To plan a G+1 residential building according to vaastu shastra and calculate loads coming on it as per IS codes. 

Introduction-

• The arrangement of all the units of a building on all floors and at all levels. 
• The arrangement of rooms as per directions and as per vaastu shastra is known as planning of building.
• During building planning, it is important to keep in mind, the general purpose of the building to plan building accordingly.

• Vaastu Shastra-

  • Vaastu Shastra is an ancient Indian Vedic Science of Architecture that puts down guidelines on the construction of buildings such that they are in harmony with the environment or nature.

  • Vaastu shastra is an ancient Indian science developed thousands of years ago by ancient Indian saints and rishis, puts forward rules for the construction of buildings and temples and has been practiced for centuries.

  • Vaastu Shastra takes advantage of energy from natural elements and manipulates the natural resources like sun, wind, air etc. and the topography of the site, the surrounding pathways, trees & plants, water sources, other structures etc. to enhance the positive energy and prevent imbalance in the building and thus bring about harmony between man, nature and his built environment.
• Calculation of loads as per IS codes- 
  • Various types of loads are considered while structural designing of a buidling.
  • Dead load, live load, wind load, snow load, earthquake load, etc are considered while designing.
  • These loads with their different combinations are used for designing i.e. DL+LL, DL+WL, DL+LL+WL.
  • While considering earthquake effects substitute EL for WL. ie. consider only one lateral force while designing.
• Following are the structural drawings required to be provided to the site for construction- 
  • Structural drawings include structural details essential for a building to be considered sound.
  • A structural plan relays important structural information about the project at hand to execute work.
  • This drawing also includes marking, size, structural detailing and information about members of building.
     
    • General Notes
    • Typical sections
    • Foundation excavation plan
    • Footing sections
    • Ground floor column plan
    • Column sections
    • Ground floor plinth beams plan
    • Plinth beams sections
    • Ground floor beam plan
    • Ground floor slab plan
    • Overhead water tank design
    • septic tank design
    • Lift pit and head room reionforcement details

Objectives- 

• To plan a G+1 residential building as per Vaastu shastra.
• To study planning of building as per vaastu shastra.
• To list the structural drawing required to provide at site.
• To calculate the loads coming on building.

PROCEDURE-

Planning of a building as per vaastu shastra-

1. Bed room-
   • The master bedroom should ideally be located in the south-west corner of the home.
   • North-west is also a good option and suits the guest bedroom or your children's bedroom best.
   • Place the bed in the south-west zone.
   • When you’re sleeping, your head should be in the south or in the east.
   • Sleeping with your head in the north is a strict no-no.
   • There must be enough space to access the bed from both sides.
   • Place wardrobes in the south-west area of the bedroom.
   • Mirrors in the bedroom should not face the bed.
2. Kitchen
   • place the kitchen is the southeast direction of your home. 
   • kitchen should never constructed in the north, north-east or south-west directions of the home.
   • place the stove such a way that, person to face the east while cooking.
   • water stored and stove should be placed distinct.
   • wash basins, the washing machine, water pipes, and the kitchen drain should be in the north or northeast direction inside the kitchen.
3. Dining
   • Dining should not be exact facing the entrance of the house.
   • and it should be near to the kitchen.
4. Living room
   • Living room should be placed at north or north east or east only.
   • Heavy furniture should be kept in the west or south-west direction of the living room.
   • All electronics and appliances should be installed in the south-east section of the living room.
   • If there is a mirror in the room, ensure it is placed on the north wall.
5. Main entrance-
   • the main door should face north, east or in the north-east direction.
   • Avoid placing a fountain, or any other decorative water-centric element, outside the main door.
   • Avoid placing a shoe rack or dustbin outside the main door.
   • There shouldn't be a bathroom near the main door.
   • Ensure the main entrance is well lit.
   • Avoid painting the main door black.
6. Bathroom-
   • The bathroom must be in the north or north-west portion of your house.
   • Do not build the bath area in the south direction or south-east or south-west direction.
   • Mirrors in the bathroom should be put up on the northern or eastern wall of the bathroom.
   • Bathroom doors should be in the north or east direction.
   • Doors should be kept closed all time to avoid negative energy.
7. Toilet-
   • The best direction of the toilet seat, according to Vastu, is in the south-east or north-west side.
   • This should be in such a way that a person using it is not facing either the east or the west.
   • Doors should be kept closed all time to avoid negative energy.
8. Store room-
   • The store rooms should be placed in north west or south west portion of building.
9. Pooja room-
   • the northeast is the perfect location to place a puja room.
   • The east, the north and the northeast can also be taken as the directions for the placement of a puja room.
   • Directions other than these should be avoided.
10. Staircase- 
    • A staircase must always be built in the western or southern part of the house.
    • It should not be constructed in the north-east corner.

Sizes of building units-

• Kitchen- 4.0x3.0m
• Living room- 4.0x3.0m
• Pooja room- 2.5x1.5m
• Bedroom - 3.5x3.0m
• Master Bedroom- 4.5x3.0m
• Bath- 2.1x1.0m
• WC- 1.2x1.0m
• Combined WC & bath- 2.4x1.4m
• Staircase-
  • width- 1.2m
  • trade- 0.25m
  • rise- 0.15m
  • landing- 1.0m
• Other assumptions-
  • All columns are 300mm x 300mm
  • All beams are 300mm x 450mm
  • Slab thickness if 125mm
  • The height of the wall is 4.5m 
  • The thickness of wall is 0.230m
• IS codes used-
  • IS875:1987 (part 1)
  • IS875:1987 (part 2)
  • Is875:1987 (part 3)
  • IS456:2000

1)Dead load calculations-

1. Dead load of column- C1=C2=C3=C4=C5=C6=.........=C18=C19. 
   •  Dead load of columns= volume of column x unit weight of concrete
   •                                 =(0.300x0.300x4.5)x25
   •                                 =10.125 Kn
2. Dead load of beams- 
   • Dead load of beams= Volume of beam x unit weight of concrete
   •                              =(0.300x0.450)x25
   •                              =3.375 Kn/m
3. Dead load of slabs-
   • Dead load of slabs= Thickness x unit weight of concrete
   •                            = 0.125x25
   •                            =3.125 Kn/m²
4. Dead load of wall-
   • Dead load of wall= (Thickness of wallx height) x unit weight of brick wall
   •                          = (0.230x4.5) x 20
   •                          =20.7 Kn/m

2)Live load calculations- 

3)Wind load calculations-

Here, overall height of building is less than 10m therefore wind load calculations are not required.

As per IS875 (part 3) wind load is not taken into account for a building of height 10m.

Still i have mentioned below the steps following wind load calculations-

1)Design Wind Speed (Vz)= V_b K₁ K₂ K₃ K₄

    Where, V_b=Basic wind speed

               K₁=risk coefficient

               K₂=terrain, height and structure size factor

               K₃=topography factor

               K₄=importance factor

• Basic wind speed (V_b) = Basic wind speed is based on peak gust speed for interval of 3 sec corresponding to 10m height of building worked out for a 50-year return period. Tken from clause no 5.2 appendix A IS875- part3
  
  • 

•  K₁=risk coefficient - Risk coefficient for different type of structure and zones. 
  • 

• K₂=terrain, height and structure size factor
  • 4 categories are done considering terrain type and height of structure
  • Category 1 - Exposed open terrain with few or no obstructions and in which the average height of any object surrounding the structure is less than 1.5 m. NOTE - This category includes open sea-coasts and flat treeless plains.
  • Category 2 - Open terrain with well scattered obstructions having heights generally between I.5 to 10 m. NOTE - This is the criterion for measurement of regional basic wind speeds and includes airfields, open parklands and undeveloped sparsely built-up outskirts of towns and suburbs.
  • Category 3 - Terrain with numerous closely spaced obstructions having the size of building-structures up to 10 m in height with or without a few isolated tall structures. Note-This category includes well wooded areas, and shrubs, towns and industrial areas full or partially developed.
  • Category 4 - Terrain with numerous large high closely spaced obstructions.   NOTE - This category includes large city centres, generally with obstructions above 25 m and
    well developed industrial complexes.                                                  
  •    
• K₃=topography factor 
  • The effect of topography will be significant at a site when the upwind slope (θ) is greater than about 3 degree, and below that, the value of k3 may be taken to be equal to 1.0. The value of k3 is confined in the range of 1.0 to 1.36 for slopes greater than 3 degree.
    
    

• K₄=importance factor

  • values of k4 are stipulated, as applicable according to the importance of the structure:
  • Structures of post–cyclone importance= 1.30
    Industrial structures= 1.15
    All other structures= 1.00

2)pz = wind pressure

• The wind pressure at any height above mean ground level shall be obtained by the following relationship between wind pressure and wind speed:
• 

3)Wind Load on Individual Members- 

• F = (Cpe – Cpi) A Pd
• where,
  Cpe = external pressure coefficient,
  Cpi = internal pressure coefficient
  A = surface area of structural element or cladding unit, and
  Pd = design wind pressure

RESULT- 

• Planned a G+1 residential building as per vaastu shastra.
• Calculation of loads coming on the building.
• Listed out structural documents required at construction site.