| 摘要 |
A bridge structure, comprising: a deck ( 1 ) for supporting a load thereon; first and second abutments ( 13 a, 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.
|
