Determination of brace forces caused by construction loads and wind loads during bridge construction : [summary].
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2014-04-01
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Abstract:Bridges are constructed in stages as pilings,
columns, girders, decks, and other components
are added. At each stage, the structure must be
stable. Girders, which add significant weight to
the developing structure, rest on elastomeric
bearing pads which allow some flexibility under
environmental conditions but also make them
more vulnerable to wind loading — girders have
been toppled by sufficient wind — and from
loading due to subsequent construction stages.
Girders are usually stabilized by braces until
construction is complete. Design of these braces
must be based on a thorough understanding of the
forces involved.
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