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15 Cards in this Set

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tension
type of stress involving an action which pulls apart
compression
type of stress involving pressing together. tends to shorten a member. opposite to tension
buckling
to fail by an inelastic change in alignment as a result of compression
snapping
to break suddenly because of compression
dissipation
disintegration; spreading apart force. arch bridge
transference
something being transfered, area at weakness, to area of strength
abutments
substructures supporting the end of a single span
spandrels
the space bounded by the arch extras and the horizontal member above it. arch
piers
substructures that support spans of multispan superstructures. beam
anchorages
the complete assemblege of members and prts
span
the distance between the support of a beam
truss
a joint structure made up of an individual members arranged and connected usually in a triangular pattern
runs under the bridge
twisting perpindicular to the longitudinal axis of a member. tacoma narrows
resonance
state of system which prduces a large vibration in responseto an external stimulus. when frequencies are equal
dampeners
resists motion via friction. stops resonance force