Superstructure Long Section

AWM Table:  Bridges, Bridge Span
Attribute:  Superstructure Long Section
Purpose:  To provide superstructure categorisation that differentiates the span and support provided by the longitudinal section of the bridge, as opposed to the cross section.


ValueDescriptionPhoto Example
Arch, Deck
Abutments at each end shaped as a curved arch. Arch bridges work by transferring the weight of the bridge and its loads partially into a horizontal thrust restrained by the abutments at either side, and partially into a vertical load on the arch supports.
Arch, Earth Filled
Earth filled arches support the roadway on earth fill that is contained between the spandrel walls.
Arch, Through
Bridge in which the base of an arch structure is below the deck but the top rises above it.
Continuous Span
A superstructure which extends as one piece over multiple supports.
Hinged Span
A hinged bridge span is a bridge with a hinge that allows the bridge to move or be lifted.
Integral Span
An integral bridge is a structure where there are no expansion joints in the superstructure between spans and between spans and abutments.
Portal Frame
The portal frame bridge system comprises of a precast portal frame which interlinks on precast structural base sections. A joint is created between the frame and the base units.
Semi-Integral (Link Slab Over Pier)
A semi-integral span bridge with a link slab over a pier is a bridge design that uses link slabs to connect bridge decks without traditional deck joints.
Simple Span
Simple span bridges cross from one support to another and can be joined together to create a longer span.
Suspended Span
Span in which the arms do not meet in the center; instead, they support a central truss bridge which rests on the ends of the cantilever arms.
Suspension
A suspension bridge is a type of bridge in which the deck is hung below suspension cables on vertical suspenders.
Unknown


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[Supporting Notes to further explain any exceptions or special situations or to help provide further clarity]