1. Basics of Bridges Basic bridge types Beam bridge Arch bridge
Suspension bridge
All other bridges are one of these three basic types
Truss bridge
Cable bridge

2. Vanilla’s of the bridge world Beam bridge

3. Arch bridge

4. Suspension bridge

6. How bridges work Two important forces that must be controlled
Compression and tension

7. Arch bridges key stone

8. What type of bridge???

9. The figure below shows examples of bridges numbered 1 through 6.
Identify one example from the figure that represents a type of arch bridge.
Explain how an arch bridge is different from a beam bridge.
Identify one example from the figure that represents a type of beam bridge.
Explain how a beam bridge is different from a suspension bridge.

10. Support cables in a suspension bridge are most stressed by which of the following forces?
A. Shear B. torsion
C. tension
D. compression

11. The diagram below shows the supports of a proposed bridge.
Which of the following wooden bridge designs, if built from one support to the other, would withstand the heaviest load?