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tech ed bridge
descriptions of a bridge
| Question | Answer |
|---|---|
| compression | a pushing force |
| tension | pulling force |
| torsion | twisting force |
| arch bridge | bridge that uses a arch for support |
| keystone | final middle piece that locks a bridge. Only found in bridges made of rock and granite |
| truss | a beam made out of triangles |
| truss bridge | a bridge made out of trusses |
| Convintional suspention bridge | a bridge that suspends it's load |
| cable stay suspension bridge | has no anchorage,cables connect from the road bed to the tower |
| caison | hallow structure that allows men to work under water |
| anchorage | bulding that holds the cables for a suspension bridge |
| dead load | the weight of a stucture (all materials used to build) |
| live load | the weight a structure is designed to hold |
| static type force | consistent even force |
| dynamic type force | sudden, explosive force |