1. Tut 0121
Team 115
Yunzhe “Calvin” Liu
Gaurav Kishore
Feiyu “Charles” Ren
Ruihe “Bolt” Zhang
Wenjie “Jennifer” Zhu
Azwad-Ur-Rahman

2. Yunzhe Liu
Prezi. (November, 2012). Lord of Flies by: William Golding.
[Online]. Available:
https://prezi.com/cgcntcsagllf/lord-of-the-flies-by-william-
golding/

3. Main Statement
● Our client, Mr. Steve Janes, required a support
system for a totem pole.
● After designing to fulfill objectives, we realized
that simplicity and designing for assembly played
a larger role in our design process than we
expected.
● Ultimately, we decided on the “Hollow Section
Support System” as the solution to this problem.
Yunzhe Liu

4. Keyword Summary of Sub-Statements
1. Analysis of the project requirements(Wenjie Zhu)
2. Detailed description of the design(Gaurav Kishore)
3. Implementation section(Feiyu Ren)
4. External factors analysis(Ruihe Zhang)
Yunzhe Liu

5. Background / Content:
Problem Statement:
● Client cut the totem pole down by
mistake
● Client needs something to support
the totem pole
● Support system should not be higher
than 12 feet
● Support should have a high durability
● A concrete base is available for use
Yunzhe Liu
Underground Concrete Base

6. 30 ft in height
bot diameter 21”
top diameter 16”

7. Functions
Primary function
● Hold the totem pole upright
Secondary functions
1. Connect the totem pole with
support system.
2. Support concentrated weight.
3. Stand firmly on the support
surface.
Wenjie Zhu

8. Objectives
Three most important objectives:
● Temperature resistance
○ -40o
C to 40o
C
wenjie zhu

9. Statistics [Online]. Available: http://www.theweathernetwork.com/forecasts/statistics/summary/cl615hmak
wenjie zhu

10. Objectives
Three most important objectives:
● Temperature resistance
○ -40o
C to 40o
C
● Wind resistance
○ Withstand 135 km/hr wind
wenjie zhu

11. Statistics [Online]. Available: http://www.theweathernetwork.com/forecasts/statistics/summary/cl615hmak
wenjie zhu

12. Objectives
Three most important objectives:
● Temperature resistance
○ -40o
C to 40o
C
● Wind resistance
○ Withstand 135 km/hr wind
● Durability
○ At least 40 years
wenjie zhu

13. Objectives
Client’s request
● Cost effective
○ $10,000
● Be around 12 feet
● Minimize damage to totem pole
wenjie zhu

14. Constraints
● Property Standards
● Municipal Codes
● Ontario’s Environmental Protection Act
● Occupational Health and Safety Act
● Workplace Safety and Insurance Act
wenjie zhu
Software Product Manager by Gopal Shenoy. (August, 2012).
Understanding Constraints.[Online]. Available: http:
//productmanagementtips.com/2012/08/03/understanding-
constraints/

15. Hollow Section Support System
● Beam inserted into back of totem
pole, secured with hex lag screws
● Hole is drilled into the concrete
base, partially filled with concrete
● Bottom of beam is placed into
hole
Gaurav Kishore

16. How the Design Meets Objectives
Temperature Resistance:
● Based on calculations, steel will not expand/ contract more than 1 cm
Wind Resistance:
● Based on calculations, system can withstand 13 kN of force
● Max force in service environment is 8kN
Durability:
● Steel’s lifespan is around 80 years
Gaurav Kishore

17. Benefits of Design
● Easier to assemble than other designs using a beam
structure
● Took up less space and was more reliable than cable
system
Gaurav Kishore

18. Design for “X”
Safety:
● Beam inserted into base instead of being bolted
● Beam inserted as deep as possible
Durability:
● Stainless steel opposed to regular steel
Assembly:
● Lag screws instead of C-shaped brackets
● Low component count
Gaurav Kishore

19. Materials and components:
Basic materials and components:
● One Rectangular hollow section beam measuring 16 ft long
● Twenty-two galvanized hex lag screw
● Fast-Setting Concrete Mix
Additional requirements:
● A crane service is also required
Feiyu Ren

20. Detailed implementation requirements:
Steps for implementation:
1. Get all materials ready for assembly.
2. Wear protective gears (e.g. gloves, goggles, etc).
3. Cut a 12 feets high, 4 inches wide, 6 inches deep rectangular section using the
electric circular saw.
4. Remove the section by removing one thick strip at a time.
Feiyu Ren

21. 5. Insert the beam into the removed section of the totem pole.
Insert two screws connecting the beam and totem pole so that
each screw is placed 0.75” from the top and 1” from either side of
the beam. This ensures about 1.25” between the centers of the
screws horizontally.
Continue to insert pairs of screws spaced identically but
placed 14.25” below the previous set of screws (measured centre
to centre) until there are 11 pairs of screws. When drilling, be
careful not to fracture the wood since it is dry and dead.
Feiyu Ren

22. 6. Drill a hole into the concrete base measuring 5” by 7” and 4’ deep. (Slightly
larger than the beam dimensions (See Figure 4.3)
7. Fill 3/4 of the hole with dry mix, soak with water.
8. Use a crane to lift the totem pole and then slowly lower it to insert the
beam into the hole.
9. Hold the crane in place until the cement sets and dries (approximately 1 hr)

23. Economics
● Rectangular hollow section beam: $738 (shipping included)
● Twenty-two galvanized hex lag screw $4.67 × 22 = $103
● Three 50lb. Fast-Setting Concrete Mix $4.98 × 3= $15
● Crane service
Disposal cost: $4.00
Total capital cost: $859
Feiyu Ren

24. Regulations
● Accessory Building &
Structures - City of Pickering
Zoning By-Laws:
○ Totem pole must be set up
at a required distance.
○ Not worry too much.
Ruihe Zhang
○ Structure higher than 1.8
m must be placed 1.0m
from neighboring
building.

25. Regulations
● Occupational Health and Safety Act 150 - 156:
a. Crane operator must be licensed before work.
b. Client needs to inspect crane operator’s license before
implementation.
c. To ensure workplace safety.
Ruihe Zhang
Government of Saskatchewan. (Dec, 1996).
Occupational Health and Safety Regulations, 1996.
[Online]. Available:
http://www.qp.gov.sk.
ca/documents/English/Regulations/Regulations/O1-
1R1.pdf

26. Lifecycle
Ruihe Zhang
Upstream
O
peration
Downstream

27. Lifecycle
● Upstream
● Mainly about raw material
extraction
● Beam and Screw:
a. Plain carbon steel
b. High-quality carbon steel
c. Low alloy steel
● Concrete:
a. Cement (11%)
b. Water (16%) & air (6%)
c. Sand (26%) and small
d. crushed stone (41%)
● Gasoline:
a. Fossil fuel
Ruihe Zhang
Bebon International. (2013). 1025
Round Bars. [Online]. Available:
http://www.round-bar.com/Carbon-
steel-bar/1025-round-bars.html
Portland Cement Association.
(2015). How concrete is Made
[Online]. Available: http://www.
cement.org/cement-concrete-
basics/how-concrete-is-made

28. Lifecycle
● Input:
● Transportation
○ Gasoline
○ Packaging material
○ Labour
● Assembly
○ Electricity
■ Drilling & cutting
○ Labour
○ Cement & Aggregate
■ Preparing concrete
○ Beam and screws
■ Setting up supporting system
Ruihe Zhang
● Output:
○ CO2
, NO2
■ from burning gasoline
○ Noise
○ Solid waste
■ packaging material waste,
waste wood, waste steel
○ Dust
■ Concrete preparation, wood
cutting
● Operation

29. Lifecycle
● Input:
○ Labour
○ Electricity
○ Gasoline
○ Heat
■ Incineration of waste
○ Sand and soil
■ Landfill
● Output:
○ Recyclable and non-recycle
materials
○ Heat
○ CO2
, NO2
○ Dust
Ruihe Zhang
● Downstream

30. Human Factor
● Physical Level:
● Design the screw holes’ pattern with the
location convenient for workers to drill.
● “Salient body-part hypothesis”:
○ consider human bodies’ structure while designing
a project
● Psychological Level:
● Write a clear and concise implementation
instruction.
● Human have a short temporary memory.
Ruihe Zhang
Dreamstime. (2015). Da Vinci Body Sketch. [Online]. Available:
http://www.dreamstime.com/stock-photos-da-vinci-human-body-sketch-image23436263

31. Therefore statement Azwad-Ur-Rahman
So, in conclusion we can say that the “Hollow Section Support System” is our
final proposed design since
● It meets the client’s need
● Durable
● Wind and temperature resistant
● Complies with the client’s proposed budget
● Requires very few simple components and tools for assembly
● Requires very few modifications to the totem pole
Since these advantages ensures an effective solution to our client’s need we
chose this design as our final design

32. Key recommendation(s): Azwad-Ur-Rahman
The following are some key recommendations for our client.
1. Maintain the steel components of the design.
a. Apply rust coating occasionally
2. Take extra precautions during the construction of this design since it
requires the usage of power tools
a. Wear protection while digging a hole in the concrete base and cutting
a hollow section in the totem pole
b. Cut the hollow section carefully to avoid fracturing or splitting
3. Use the right components to ensure the stability of this design
a. Wrong screws won’t support the weight of the totem pole

33. Take-away statement Azwad-Ur-Rahman
A simple but best solution must have the following features
● Budget effective
● Have very few components
● Easy to set up
● Must meet with the client’s need
‘Hollow Section Support System’ is
● A solution within the client’s budget
● Requires very few components
● Very simple to set up so the client can easily do it himself.
● Meets with the client’s need of a support for his totem pole
So, we can say that the ‘Hollow Section Support System’ is the simplest but best solution to meet our
client’s need. Now, after going through the Final Design Specification the client can proceed with the
implementation of the main design.