Balcony By Benjamin Luke Vreugdenburg and Nakaroz Karimi

1
BalconyBy Benjamin Luke Vreugdenburgand
Nakaroz Karimi
2
Dimensions
12.47m
2.065m
2.145m
3
Assumption

• Ply decking has the same strength as radiata pine
  beams
• Balcony roof doesnt extend past sides
• All connections to the brick wall are fixed
• Support beams were the same thickness to the end
  of the balcony

4
Beam Properties

• Timber Decking
• Radiata Pine
• X-Centroid
• -17.5mm
• Y-Centroid
• -70mm
• E10500MPa
• Density5.5x10-7Kg/mm3

5
Beam Properties

• Support Beam outer
• 180UB22.2
• X-Centroid
• -45mm
• Y-Centroid
• -89.5mm
• E200000MPa
• Density7.58x10-6Kg/mm3

6
Beam Properties

• Support Beam inner
• 250UB37.3
• X-Centroid
• -73mm
• Y-Centroid
• -128mm
• E200000MPa
• Density7.58x10-6Kg/mm3

7
Beam Properties

• Support Beam inner wood
• Radiata Pine
• X-Centroid
• -73mm
• Y-Centroid
• -128mm
• E10500MPa
• Density6x10-7Kg/mm3

8
Beam Properties

• Edge Beam on deck
• 180PFC
• X-Centroid
• -24.91mm
• Y-Centroid
• -90mm
• E200000MPa
• Density7.85x10-6Kg/mm3

9
Beam Properties

• Support Column
• Radiata Pine
• X-Centroid
• -45mm
• Y-Centroid
• -45mm
• E10500MPa
• Density5.5x10-7Kg/mm3

10
Beam Properties

• Hand Rail Beam
• Radiata Pine
• X-Centroid
• -32.5mm
• Y-Centroid
• -45mm
• E10500MPa
• Density5.5x10-7Kg/mm3

11
Beam Properties

• Hand Rail Columns
• Radiata Pine
• X-Centroid
• -20mm
• Y-Centroid
• -20mm
• E10500MPa
• Density5.5x10-7Kg/mm3

12
Beam Properties

• Top Support Beam
• Radiata Pine
• X-Centroid
• -17.5mm
• Y-Centroid
• -115mm
• E10500MPa
• Density5.5x10-7Kg/mm3

13
Beam Properties

• Roof Support Beam
• Radiata Pine
• X-Centroid
• -17.5mm
• Y-Centroid
• -70mm
• E10500MPa
• Density5.5x10-7Kg/mm3

14
Plate Properties

• Roof
• Steel
• Thickness 4mm
• E200000MPa
• Density7.87x10-6Kg/mm3

15
Method

• Drew A piece of ply decking and copied it 30
  times.
• Drew the beams under the ply decking.
• Drew the raitata columns and connected the hand
  rails to them using the subdivide command.
• Drew the top beams and connected the plates to
  them

16
Method

• Added the supports.
• Gave the materials their properties.
• Offset the beams relevant to their thicknesses.
• Applied different load cases and analyzed them.

17
Results Self Weight

• Max Beam displacement 1.1050mm downwards.
• Max Plate displacement 0.8861 downwards.

18
Results Self Weight

• Max and Min Beam Axial Stress 0.2578MPa,
  -0.5767MPa.
• Max and Min Plate Stress 2.2043MPa, No
  Negative Plate Stress

19
Results deck Load 3kPa

• Max Beam displacement 5.6720mm downwards.
• Max Plate displacement 4.0663 downwards.

20
Results deck Load 3kPa

• Max and Min Beam Axial Stress 2.2177MPa,
  -2.5711MPa.
• Max and Min Plate Stress 11.6888MPa,
• -1.1054MPa

21
Results deck Roof Load 3kPa

• Max Beam displacement 16.8288mm downwards.
• Max Plate displacement 16.9253mm downwards.

22
Results deck Load 3kPa

• Max and Min Beam Stress 2.4873MPa,
  -5.5273MPa.
• Max and Min Plate Stress 30.6978MPa,
  -19.8486MPa.

23
(No Transcript)
24
Convergence test

• Convergence test had issues as there was not
  enough memory on the computers to run more than
  two tests
• But seemed to level off after 2 tests

25
Conclusion

• Max Stress For Radiata Pine is 50MPa so all out
  cases pass.
• Max Deflection allowed by the Australian
  standards is 8.58mm so case 3 doesnt pass but
  case 3 is not a realistic case

26
Conclusion

• Displacement slides show that the total
  deflection for each case is small and realistic
• Materials used are adequate as maximum deflection
  is small safe for public to use
• Balcony can stand realistic case scenarios
• Hence balcony is safe for the Australian
  Standards specified load capacity of 3KPa

27
Any questions?