| A | B |
|---|
| Arch Bridge | A semicircular structure with abutments on each end |
| Dissipation | What is the spreading out of force or weight over a greater area so that no one area has to deal with a large amount |
| Abutments | Compression in an ARCH BRIDGE is dissipated by spreading the force out from the center of the deck to what? |
| Tension | Because the Abutments prevent the bridge from spreading, in an ARCH BRIDGE, this force is almost nonexistent |
| Abutments | This is the part of an arch bridge that bears the weight or pressure of an arch. Specifically, these prevent the arch from spreading under the weight. |
| 800-1000 feet | How far can an arch bridge safely span |
| Tension | This force is defined as a force that acts to expand or lengthen the thing that it is acting upon. In other words it is a force that stretches. |
| Compression | This force is defined as a force that acts to compress or shorten the thing that it is acting upon. In other words it is a force that squeezes. |
| Two bridge supports | The span of a bridge is defined as the distance between |
| Compression | In an arch bridge, the force of ________________occurs throughout the entire bridge and follows the curve of the arch. |
| Curve of the arch | In an arch bridge, COMPRESSION occurs throughout the entire bridge and follows the ___________________. |
