1. ANALYSIS AND DESIGN OF A PRE ENGINEERED BUILDING
Guided by
Mr.C.RAJENDRA PRASATH M.E.,
BHARATHI KANNAN.S ( )
KANNAN.S ( )
PARTHEPAN.R ( )
VINAYAGAMOORTHY.P ( )

2. PRE ENGINEERED BUILDING
Meaning: constructed of or employing prefabricated modules First known use: 1951 Generally: A pre-engineered building is a metal building that consists of light gauge metal standing seam roof panels on steel purlins spanning between rigid frames with light gauge metal wall cladding.

3. ADVANTAGES Fast erection
Low cost if choosing manufacturer’s standard package/inventory and no add-on
Open clear span
Can be easily expanded to grow with needs

4. DISADVANTAGES Marginal design, material and construction
May not include all construction/fit-up needed for the building to serve the intended purpose.
Usually no internal finished walls

5. Some possible outcomes
Clear spans up to 93 meters wide and eave heights as high as 30 meters are possible.
A building system that offers speed, quality and value.
Ideal for any non-residential low-rise building.

6. PEB vs NORMAL STEEL BUILDINGS
Structures are manufactured in factory under strict quality control environment, thereby ensuring superior quality & finish
Superior architectural features can be incorporated and excellent aesthetics can be achieved
Structures are mostly site fabricated wherein it is difficult to monitor & control quality parameters.
Limited scope for architectural & aesthetic features

7. Faster completion time  - as civil works can be completed parallely
Cost per SQM is about 30% cheaper than conventional structures
Much slower completion time
Cost is higher due to higher consumption of steel and other co-ordination issues involved

8. Simple frame of P.E.B
Simple frame of normal steel buildings

9. Pre-engineered steel building consist of the following:
Primary framing (The main frames)
Secondary framing (Z and C sections)
Roof and wall panels (single skin and insulated sandwich panels)
Structural subsystems (canopies, partitions, etc.)
Floor systems (catwalks, platforms, etc.) and
Other building accessories (sliding doors, roll up doors, windows, etc.)

10. BASIC BUILDING PARAMETERS
BUILDING WIDTH:
The building width is defined as the distance from outside of eave strut of one sidewall to outside of eave strut of the opposite sidewall. Building width does not include the width of Lean-To buildings or roof extensions.
Building Length:
The longitudinal length of the building measured from out to out of end wall steel lines.

11. Building Height: Roof Slope (x/10): End bay length:
Building height is the eave height which usually is the distance from the bottom of the main frame column base plate to the top outer point of the eave strut
Roof Slope (x/10):
This is the angle of the roof with respect to the horizontal. The most common roof slopes are 0.5/10 and 1/10. Any practical roof slope is possible.
End bay length:
The distance from outside of the outer flange of endwall columns to center line of the first interior frame column.

12. Interior bay length: Design Loads:
The distance between the center lines of two adjacent interior main frame columns. The most common bay lengths are 6 m, 7.5 m and 9 m.
Design Loads:
Loads are calculated as per local condition.it can be dead load, live load ,snow load, collateral load ,crane load etc.,

14. STANDARD FRAMING SYSTEMS
Most commonly symmetrical about the ridge line.
Framing systems about the ridge line and multi-span framing systems with unequal width modules are also possible, as symmetrical
Practically any frame geometry is possible

16. PRE-ENGINEERED BUILDINGS APPLICATIONS
Warehouses/Distribution Centers
Factories
High-Rise Buildings
Shipyards
Sports Stadiums
Waste Treatment Factories
Hangers

18. WAREHOUSE
GENERAL:
A warehouse is a commercial building for storage of goods. Warehouses are used by manufacturers, importers, exporters, wholesalers, transport businesses, customs, etc. They are usually large plain buildings in industrial areas of cities and towns and villages. They usually have loading docks to load and unload goods from trucks.

19. TYPES Display of goods for sale Overseas warehouses Packing warehouses
Railway warehouses
Canal warehouses
Port warehouse

20. Method of construction
Composite structure
Concrete and brick work
Steel buildings
Pre engineered buildings

21. ANALYSIS AND DESIGN
Pre-engineered building can be analysed manually or using software.
In manual method it is analysed as normal steel building with tampered beams
By software :STAAD, SAP2000, etc…

22. Design of warehouse
Proposed building details: Length=107.9 m Breath=56.4 m Eave Height=10 m Framing system= multispan “2”(MS 2)

24. LOADS Dead load = 1.85 KN/m Live load = 0.75 KN/m Wind load
Wind pressure=1.54 KN/m2

25. Actual Wind Load to be on Wall 1. Large Side The max. Span = 7
Actual Wind Load to be on Wall 1.Large Side The max. Span = 7.140m Design Wind pressure = 1.54 KN/m2 UDL on long side column = KN/ m2 2.Small Side The max. Span = 6.20m Design Wind Pressure = 1.54 KN/ m2 UDL on short side column = 9.54 KN/ m2

26. Size of foundation= 2m x 3m Plinth beam
Size of pedestal= 1m x 1m
Size of foundation= 2m x 3m
Plinth beam
At edge = 0.45m x 0.23m

27. Purlin: Z type (Z 10010)

28. isometric view of whole building

29. Front view

30. Top view

31. side edge tampered column

32. tampered rafters

33. Dimension of structural components
Size of main beam (column)=ISMB 300
Tapered column
At bottom = 0.6m
At top= 0.9m
Tapered rafter
At column side=0.832m
At middle = 0.4m

34. Plinth Beam and Pedestal

35. load combination

38. Axial Force Diagram

39. Moment diagram

40. Beam stress diagram

41. Pedestal detailing
16 mm dia 200mm c/c
No of bars = 16

42. Plinth beam detailing

43. Plinth beam detailing

44. Footing detailing

45. RESULT The design of pre engineered building is safe
The final dimensions are
Size of main beam (column)=ISMB 300
Tapered column
At bottom = 0.6m
At top= 0.9m
Tapered rafter
At column side=0.832m
At middle = 0.4m

46. REFERENCES TI
AISC Code of Standard Practice for Steel Buildings and Bridges
MBMA (Metal Building Manufacturing Association) Guidelines
IS 875 Code of practice for design loads
IS 456:2000plain and reinforced concrete - code of practice
IS 800:2007General Construction InSteel — Code Of Practice
Design of steel structures by S.S.Bavighati