Bridge Structures
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United States of America Patent
Stats
-
N/A
Issued Date -
Jul 24, 2008
app pub date -
Apr 18, 2006
filing date -
Apr 18, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A bridge structure, comprising: a deck (1) for supporting a load thereon; first and second abutments (13a, b) which support respective ends of the deck and bear a compressive load from backfill (5) at the respective outer sides thereof; and at least one displacement compensation unit (21) which is configured such as to accommodate longitudinal displacement of the deck and maintain a predeterminable longitudinal force between the abutments, wherein the at least one displacement compensation unit has a load-displacement characteristic which provides for a reduced rate of change in the longitudinal force with longitudinal displacement of the deck as compared to a conventional bridge structure which incorporates no displacement compensation unit.
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Cited Art Landscape
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