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Structures
Bridges
| Term | Definition |
|---|---|
| Abutments | Supports at the end of an arch bridge that can 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 device that are embedded in the solid rock or massive concrete blocks that spreads cables over a large area to evenly distribute the lad 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 its acting on |
| buckling | what happens when the force of compression overcomes an object ability to handlecompression |
| snapping | what happens when tension overcomes an objects ability to handle tension |
| dissipate | to spread force over a greater area of strength |
| transer | to move force from one area of weakness to another 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 the compression and tension |
| torision | a rational or twisting force |
| Deck-stiffening trusses | A supporting truss system beneath the bridge deck |
| Resonance | A fatal force 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 |
| Dampers | A technique used to interrupt the resonant waves |
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