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STRUCTURES

BRIDGES

TermDefinition
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 road way to the arch below
Anchorages Securing devices that are embedded in 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 bride supports
Compression a force that acts to compress or or shorten the thing it is acting on
Tension a force that acts to expand or lengthen the thing it is on acting on
Buckling what happens when the force of compression over c omes an objects ability to handle compression
Snapping what happens when tension over comes an objects 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 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 increasing its ability to dissipite the compression and tension
Torsion a rotational or twisting force
Deck-stiffening trusses a supporting truss system beneath the bridge deck
Resonance A fatal 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
Dampeners A technique used to interrupt the resonant waves
Created by: 304454
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