Bridge Design - Zinszer Physics
Transcript of Bridge Design - Zinszer Physics
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BY LAURA ZINSZER DHS 2016
ADAPTED FROM WABASH BRIDGE DESIGN BY TODD WILSON, B.S., E.I.T.
TRAFFIC ENGINEER - DMJM HARRIS
Bridge Design
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In 1904, the
Wabash Bridge
opened to carry
the Wabash-
Pittsburg Terminal
Railroad over the
Monongahela
River.
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In 1948, the
bridge was
removed. The
piers still
remain. What
would it take
to rebuild the
bridge to cross this river?
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Definitions
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• Girder - a long, narrow, supporting beam
that extends the length of the bridge.
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• Abutment - support at beginning or end of
bridge integrated with the ground.
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Span - the bridge deck between the two
supporting piers or abutments.
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• Pier - intermediate support between the two
abutments under the span of the bridge.
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Classification of Form – Deck Truss
Deck Truss has the truss BELOW the
deck of the bridge.
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Classification of Form – Pony Truss
Pony Truss has the truss along the side
of the deck of the bridge.
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Classification of Form – Through Truss
A Through
Truss has the
truss on the
sides and
above the deck
so the traffic
travels through
the truss on the
bridge.
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Parts of a Truss Bridge
Please use
this diagram
to identify the
parts of the
truss bridge
on your
reference
page.