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Structures
Bridges
| Term | Definition |
|---|---|
| Abutments | supports at the end of an arch bridge that carry the load and keep the ends from spreading out. |
| Spandrels | vertical supports 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 free. |
| 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 when tension overcomes an objects ability to handle tension. |
| Dissipate | to spread force over a greater area so that no one spot has to bear the brunt of the concentrated force. |
| Truss | Supporting lattice work added to create very tall beams that add rigidity to an existing harmony with the natural vibration of the original thing. Resonance vibrations travel through a bridge in waves. |
| Torsion | a rotational or twisting force. |
| Deck stiffening issues | A supporting truss system beneath the bridge deck. |
| Resonance | A fatal force to a bridge that is a vibration caused by an 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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