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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 bridges 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 over comes an object's ability to handle compression |
| Snapping | What happens when tension overcomes an object's 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 |
| Transfer | to move force from an are 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 the compression and tension |
| Torsion | A rotational or twisting force |
| deck-stiffening trusses | a supporting truss systems beneath the bridge deck |
| Resonance | A fatal focre |
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