1. By Rohith nayanar Antony Paul Jinto joy Azhagarasan Tamizhazhagan
DESIGN OF RESIDENTIAL BUILDING BASED ON TRADITIONAL BUILDING ‘NALUKETTU’ IN KERALA By
Rohith nayanar
Antony Paul
Jinto joy
Azhagarasan
Tamizhazhagan
GUIDED BY
A.Manivannan.M.Tech,(Ph.D)

2. CONTENTS INTRODUCTION HISTORICAL STUDY AIM SCOPE LOCATION
DETAILS OF DESIGN
DETAILS OF PLAN

3. INTRODUCTION
The aim of this project is to detailed study and reproducing the design of traditional residential building “Nalukettu” in Kerala.
Nalukettu is the traditional homestead, where many generations of families are lived. These types of buildings are typically found in the Indian state of Kerala.

4. HISTORY
These traditional buildings are typically a rectangular structure where four halls are joined together with a central court yard open to the sky.
Every structure faces the sunlight, and there is excellent ventilation. Temperatures, even in the heat of summer, are markedly lower within the nalukettu.

5. CONT….. Main areas of nalukettu are… Nadumuttam(central courtyard)
Nalirayam(varandha)
Poomukham(sit out)
The four halls on the sides are named
Vadakkini (northern block),
Padinjattini (western block),
Kizhakkini (eastern block)
Thekkini (southern block)

6. Plan of old nalukettu

7. Nalukettu

8. Nadumuttam

9. AIM
Aspects of nalukettu are taken and redesign the building, Instead of woods and roofing tiles concrete is used.
And flooring tiles, roofing tiles, plastering work, painting work is needed for aesthetical appearance.
This design comprises of concrete pillars, concrete slabs, and lintels.

10. SCOPE
This type of building is major trend in these days, due to good aesthetical appearance & good features….
Temperature of this building is very low compare to other normal building.
Four buildings are joined together ,so earth quake resistance is good…
this style of architecture has today become a status symbol among the well to do in Kerala.
Nalukettu is evident in the traditional homes of the upper class homestead where customs and rituals were a part of life.

11. CONTI….
 Its a better idea to create nalukettu homes when you want to go traditional , you would like  much light and wind circulation in all over your rooms, when you are not a big fan of  cost cutting.

12. LOCATION The proposed building site is located kumily in Kerala state.
Site is 4 km away from kumily town.

13. Details of design. Total area - 4000sqft. Buildup area- 2400sqft.
Structure – framed structure
Analysis – moment distribution.
Design – limit state design.

14. Details of design.
Main specialty of these building is a inner courtyard.(3x3)
Instead of wood pillars we are used concrete pillars.

15. Details of design. Poomukam known as main sitout.
Instead of this provide portico…

16. DESIGN DETAILS
In the case of new generation Nalukettu the roof structure is made of concrete and finishing is done using  tiles.

17. DESIGN DETAILS
This reduces the usage of wood and will improve the building's security.
The tiles laid over the roof will reduce leakage and control the temperature inside during summer season

18. CONT…
Also instead of the open roof ,now the nadumuttam(courtyard) is closed with a high quality glass for the security reasons

19. DETAILS OF PLAN

20. DETAILS OF PLAN

21. DETAILS OF PLAN

22. COULAMN MARKING

23. HIPPED ROOF
A hip roof, or hipped roof, is a type of roof where all sides slope downwards to the walls, usually with a fairly gentle slope.
Thus it is a house with no gables or other vertical sides to the roof. A square hip roof is shaped like a pyramid.
Hip roofs on the houses could have two triangular side and two trapezoidal one. A hip roof on a rectangular plan has four faces. They are almost always at the same pitch or slope, which makes them symmetrical about the centerlines

24. Types of hipped roof

25. Framed view of the structure..

26. 3D render view of the structure…

27. “MOMENT DISTRIBUTION METHOD OF FRAME ANALYSIS .”
ANALYISIS OF FRAME
After proper analysis we got a safe moment in every frame.
Manual analysis of frames are find out by using
“MOMENT DISTRIBUTION METHOD OF FRAME ANALYSIS .”
For live loads , references ,and other values are from the IS 875 part 2.

28. Loads… For residential building we are taken the Imposed load
UDL(KN/M^2) POINT LOAD
For all rooms &kitchen
Toilet & Bathroom
corriders, passages,
staircases
Balconies

29. Load applications on beam

30. Resultant diagram

31. Beam design.. Span = 4.5m D = 400mm d =360mm Con grade = M20
Steel grade = Fe415
Provide 2 no’s of 16mm dia bar as main reinforcement.
provide 2 no’s of 10mm dia bar as hanger bars

32. DESIGN DETAILS OF BEAM

33. DESIGN OF COLUMN. SQURE COLUMN DESIGN Column size = 300 x300 mm
Design load =530 kN
Concrete grade = M20
Steel grade = Fe415
Provide 4 nos of 20 mm dia bar at all corners of main reinforcement
Provide 8 mm dia lateral 300 mm c/c

34. DESIGN DETAILS OF RECTANGULAR COLUMN

35. PITCH
Lateral dimensions = 300 mm
16 times dia of main bar = (16x 20) =320
300 mm whichever is less
Hence adopt 8 mm dia lateral 300 mm c/c

36. DESIGN OF COLUMN. CIRCULAR COLUMN Column dia. = 300 mm
Design load =300kn
Concrete grade ` = m20
Steel grade = Fe415
Provide 6nos of 20mm dia bar as main reinforcement
Provide 8 mm dia lateral 300 mm c/c

37. DETAIL OF CIRCULAR COLUMN

38. DESIGN OF SLAB.. Span = 5m Concrete grade = M2o Steel grade = Fe415
Imposed load = 2kN/m2
Floor finish =1kN/m2
Effective depth = 205mm
Overall depth = 230mm
Provide 10mm dia bar 250mm c/c as main reinforcement
Provide 8mm dia 300mm c/c as distributors

39. DESIGN OF FOOTING S.B.C of soil = 200KN/m2 Concrete grade = M20
Steel grade =Fe 415
Axial load =300KN
Assume 10% of self wt =30KN
Total load =330KN
Area of footing =(Total load/S.B.C)
=(330/150)
=2.20m2

40. CONT.. Size of footing = (2.20)=1.48 m
Hence adopt 1.5 x 1.5 m size as square footing.
20 mm dia bars as main reinforcement.
Adopt 300 mm as spacing

41. DESIGN OF STAIRCASE Tread = 300mm Rise = 150mm
Adopt M20 concrete , Fe415 steel
Dia of a main bar = 12mm
Clear cover = 15mm

42. CONT.. Width of landing beam= 300mm Width of landing on either side=1m
Height of the floor = 3.05m
No of rises per flight = 11 nos
No of thread per flight = 10 nos

43. CONT.. Effective span = 3.86m Effective depth,d=195mm
Total factored load = 16.28kN/m
Bending moment,Mu=30.32kN.m
Area of reinforcement, Ast=452.6mm²
Provide 12mm dia 249mm c/c

45. VIEW FROM ARCHI CAD

46. conclusion
In our project we have made an attempt to design a residential building as framed structure. The shear force and bending moment diagram for the framed structure for the residential building was done by using STRAP software. All the members were designed by limit state method, which is more rational and realistic in comparison with other design methods.

47. THANK YOU