- compression, so far as is possible. Each arch is
constructed over a
temporary falsework frame,
known as a centring. In the
first compression arch bridges, a keystone...
- and 200.
Carries Pedestrians, Road vehicles, Rail
Vehicles Span
range Short Material Timber,
steel Movable No
Design effort Low Falsework required None...
- floats,
appropriate decking material Movable Generally not, but may have
movable sections for
watercraft p****age
Design effort low Falsework required No...
-
Descendant Arch bridge,
trestle bridge Carries footpaths, tracks,
roadways Span
range Short Material Stone Movable No
Design effort Low Falsework required No...
-
Heavy rail Span
range Short Material Timber, iron, steel,
reinforced concrete,
prestressed concrete Movable No
Design effort Low Falsework required No...
- steel,
reinforced concrete,
prestressed concrete Movable No
Design effort Low Falsework required No
unless cast-in-place
reinforced concrete is used...
- automobiles, trucks,
light rail,
heavy rail Span
range Short,
Medium Material Iron, wood,
concrete Movable No
Design effort low Falsework required No...
- off-site and
transported by rail to the
intended location. Some sort of
falsework,
usually in the form of a trestle, is
required to
erect the bridge. The...
-
allow for
expansion joints between the spans.
Concrete is
commonly used for
low piers,
while steel trestle work may be used for high bridges. Beam bridge...
-
easily constructed at
difficult crossings by
virtue of
using little or no
falsework.
Engineers in the 19th
century understood that a
bridge that was continuous...