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Structures
Bridges
| Term | Definition |
|---|---|
| Abutments | Supports at the end of and arch bridge that carry the load and keep the ends from spreading out |
| Spandrels | Vertical support of an arch bridge used to distribute the weight of the roadway to the arch below |
| Anchorages | Securing devices that are embedded in the solid rock or massive concrete blocks that spread cables over a large area to evenly distribute the load and prevent the cables from breaking |
| Span | The distance between two bridge supports |
| Compression | A force that acts to compress or shorten the thing it is acting on |
| Tension | A force that acts to expand or lengthen the thing it is acting on |
| Buckling | What happens when the force of compression overcomes an objects ability to handle compression |
| Snapping | What happens tension overcomes an objects ability to handle tension |
| Dissipate | To spread force from a area of weakness to an area of strength |
| Truss | Supporting lattice work added to create very tall beams that add rigidity to an existing beam greatly increasing its ability to dissipate compression and tension |
| Deck-Stiffening Trusses | A supportive truss system beneath the bridge deck |
| Torsion | A rotational or twisting force |
| Trasfer | To move force from an area of weakness to an area of strength |
| Resonance | A fatal force to a bridge that is a vibration caused by a extended force that is in harmony with the natural vibration of the original thing. Resonance vibrations travel through a bridge in waves |
| Dampeners | A technique used to interrupt the resonant waves |
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