1. Bridge Contest Sample Presentation
Essential Presentation Elements
Group Name, Member Names
Group’s Division of Labor
Numbers Needed to Calculate Cost
Type of Truss
Truss Figure
Estimated Mass, Cost, Strength
Any special features of bridge design
Presentation Time: minutes (5 - 8 slides)
An example presentation follows this slide

2. Balsa Wood Bridge Design
Group AAA
Jim Bowen

3. Group AAA Division of Labor
Jim Bowen did all the work
Bridge design, construction, testing
Matlab program development
Oral presentation

4. Group AAA - Bridge Information
Bridge dimensions
24.5” long, 8.5” high, 4.0” wide
Bridge “numbers”
10 nodes in bridge (5 per truss)
1 member type (.25” x .50”)
0” of 1/8”x1/8” wood
245” of 1/4”x1/4” wood
Truss configuration
Warren through truss (see figure)

5. Truss Design - Group AAA

6. More Bridge Information
Estimates from Matlab program
Mass = 69 grams
Strength = 111 lb
Cost = 26.5 million $
Benefit = 29.0 million $
Profit = 2.5 million $
Special features of group’s work
used Matlab program to test many different candidate designs
Questions?