1. The CE311 Steel Bridge Competition
The 15th Annual CE311 Steel Bridge Competition

2. The CE311 Steel Bridge Competition
The 15th Annual CE311 Steel Bridge Competition has begun.

3. The CE311 Steel Bridge Competition
The 15th Annual CE311 Steel Bridge Competition
Each section is a team

4. The CE311 Steel Bridge Competition
The 15th Annual CE311 Steel Bridge Competition
Each section is a team

5. The CE311 Steel Bridge Competition
The 15th Annual CE311 Steel Bridge Competition
Each section is a team
Goal: design,

6. The CE311 Steel Bridge Competition
The 15th Annual CE311 Steel Bridge Competition
Each section is a team
Goal: design, fabricate,

7. The CE311 Steel Bridge Competition
The 15th Annual CE311 Steel Bridge Competition
Each section is a team
Goal: design, fabricate,

8. The CE311 Steel Bridge Competition
The 15th Annual CE311 Steel Bridge Competition
Each section is a team
Goal: design, fabricate,

9. The CE311 Steel Bridge Competition
The 15th Annual CE311 Steel Bridge Competition
Each section is a team
Goal: design, fabricate, and construct the lowest cost bridge

10. The CE311 Steel Bridge Competition
The 15th Annual CE311 Steel Bridge Competition
Each section is a team
Goal: design, fabricate, and construct the lowest cost bridge
The Bridge:

11. The CE311 Steel Bridge Competition
The 15th Annual CE311 Steel Bridge Competition
Each section is a team
Goal: design, fabricate, and construct the lowest cost bridge
The Bridge:
20' Span
2500lbs of load, uniformly distributed
It must be constructed over a mock river that you cannot stand in.

12. The CE311 Steel Bridge Competition
Cost Structure:

13. The CE311 Steel Bridge Competition
Cost Structure:
Cost = Structural $ + Constr. $ + Late $

14. The CE311 Steel Bridge Competition
Cost Structure:
Cost = Structural $ + Constr. $ + Late $
Structural Cost is minimized by:
A light bridge
A stiff bridge

15. The CE311 Steel Bridge Competition
Cost Structure:
Cost = Structural $ + Constr. $ + Late $
Structural Cost is minimized by:
A light bridge
A stiff bridge
Construction Cost is minimized by:
A bridge that can be quickly assembled

16. The CE311 Steel Bridge Competition
Cost Structure:
Cost = Structural $ + Constr. $ + Late $
Structural Cost is minimized by:
A light bridge
A stiff bridge
Construction Cost is minimized by:
A bridge that can be quickly constructed
Late Costs: huge penalties for fabricating after the deadline.

17. The CE311 Steel Bridge Competition
Truth

18. The CE311 Steel Bridge Competition
Truth
Of the 47 bridges constructed in CE311 since 2003:

19. The CE311 Steel Bridge Competition
Truth
Of the 47 bridges constructed in CE311 since 2003:
14 have either failed or been disqualified

20. The CE311 Steel Bridge Competition
Truth
Of the 47 bridges constructed in CE311 since 2003:
14 have either failed or been disqualified
Tensile Fracture (2003)

21. The CE311 Steel Bridge Competition
Truth
Of the 47 bridges constructed in CE311 since 2003:
14 have either failed or been disqualified
Buckled Member (2004)

22. The CE311 Steel Bridge Competition
Truth
Of the 47 bridges constructed in CE311 since 2003:
14 have either failed or been disqualified
Buckled Top Chord (2005)

23. The CE311 Steel Bridge Competition
Truth
Of the 47 bridges constructed in CE311 since 2003:
14 have either failed or been disqualified
Buckled Abutment (2005)

24. The CE311 Steel Bridge Competition
Truth
Of the 47 bridges constructed in CE311 since 2003:
14 have either failed or been disqualified
2015
FUBAR

25. The CE311 Steel Bridge Competition
Truth
Of the 47 bridges constructed in CE311 since 2003:
14 have either failed or been disqualified
Why?

26. The CE311 Steel Bridge Competition
Truth
Of the 47 bridges constructed in CE311 since 2003:
14 have either failed or been disqualified
Why?
This competition is hard

27. The CE311 Steel Bridge Competition
You Cannot be Creative, If you Have Never Created

28. The CE311 Steel Bridge Competition
You Cannot be Creative, If you Have Never Created