Civil Engineering Reference
In-Depth Information
orthotropic floor bridges
. Plate girder bridges are the bridges having their main
carrying structural system made of plate I-shaped girders, which are suitable
for simply supported spans up to 40 m. For normal bridge cross-section
widths (less than or equal 10 m), twin plate girder bridges may be used.
Otherwise, multiple plate girders can be used as main structural systems
transmitting different loads to foundations, as shown in
Figure 1.10
.
Box
girder bridges (see
Figure 1.11
)
are the bridges having their main structural
system made of box-shaped girders, which are suitable for continuous spans
up to 300 m. Rigid frame bridges (see
Figure 1.12
)
are the bridges having
their main structural system made of rigid frames, which are suitable for
continuous spans up to 200 m. Truss bridges (see
Figure 1.3
)
are the bridges
having their main structural system made of trusses, which are suitable for
simple and continuous spans from 40 to 400 m. Arch bridges (see
Figures 1.1,
arches, which are suitable for simple and continuous spans from 200 to
500 m. Cable-stayed bridges (see
Figure 1.13
)
are the bridges having
their main structural system made of cables hung from one or more towers,
which are economical when the spans are in the range of 200 to 800 m.
Suspension bridges (see
Figure 1.14
)
are the bridges having their main
structural system made of decks suspended by cables stretched over the
bridge span, anchored to the ground at two ends, and passed over towers
at or near the edges of the bridge, which are, similar to cable-stayed bridges,
economical when the spans are in the range of 200 to 1000 m. Finally,
orthotropic floor bridges (see
Figure 1.15
) are the bridges having their main
structural
system made of
structural
steel deck plate stiffened either
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