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structures
Bridges
| Question | Answer |
|---|---|
| abutments | supports at the end of an arch bridges that carry the load ad 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 soil rock or massive concrete blocks that spread cables over a large area to evenly distribute the load and preserve the cables from breaking . |
| 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 tension overcomes 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 ha to bear the brunt of the concentrate force. |
| transfer | to move force from an 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 increase its ability to dissipate the compression and tension. |
| torsion | a rotational or twisting force |