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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 |