The bridge deck is that portion of a
railway bridge that supplies a means of
carrying the track rails. In comparison
to the rest of the superstructure design,
bridge deck decisions are relatively simple.
The choices are open deck and ballast
deck. On open deck bridges (Figure 8-
5), the rails are anchored directly to
timber bridge ties supported directly
on the floor system of the
superstructure. On ballasted bridge
decks, the rails are anchored directly
to timber track ties supported in the
ballast section. The ballasted bridge
decks require a floor to support the ballast section and such floors are
designated by their types, such as timber floors, structural plate floors, buckle
plate floors or concrete slab floors, all of which transfer loads directly to the
superstructure.
Figure 8-5 Open Deck Structure - Courtesy of Canadian
National
©2003
The bridge deck is that portion of a
railway bridge that supplies a means of
carrying the track rails. In comparison
to the rest of the superstructure design,
bridge deck decisions are relatively simple.
The choices are open deck and ballast
deck. On open deck bridges (Figure 8-
5), the rails are anchored directly to
timber bridge ties supported directly
on the floor system of the
superstructure. On ballasted bridge
decks, the rails are anchored directly
to timber track ties supported in the
ballast section. The ballasted bridge
decks require a floor to support the ballast section and such floors are
designated by their types, such as timber floors, structural plate floors, buckle
plate floors or concrete slab floors, all of which transfer loads directly to the
superstructure.
Figure 8-5 Open Deck Structure - Courtesy of Canadian
National
©2003
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