orthotropic deck

(redirected from Orthotropic deck bridge)

orthotropic deck

[¦ȯr·thə¦träp·ik ′dek]
(civil engineering)
A bridge deck constructed typically of flat steel plate and longitudinal and transverse ribs; functions in carrying traffic and acting as top flanges of floor beams.
References in periodicals archive ?
The old structure was demolished to make way for a 213 metre-long orthotropic deck bridge with four spans.
An "orthotropic deck bridge" is a welded, all-steel superstructure that acts as a single, integral unit.
Today, Japan is home to the world's longest suspension, floating, and cable-stayed orthotropic deck bridges. In fact, major orthotropic viaducts in Tokyo are composed of more than 1,100 spans, and there are more than 250 orthotropic deck bridges of various sizes throughout the country.
In fact, the Federal Highway Administration (FHWA) and many other organizations recently sponsored the world's first conference in nearly 30 years focused exclusively on orthotropic deck bridges.
"Orthotropic deck bridges provide an excellent solution for large-scale structures where weight is an issue," FHWA's Nevai says, "such as cable-stayed and suspension bridges.
In southeast Alaska, for example, the agency uses eight movable orthotropic deck bridges to transfer vehicles from State-run ferries to the shore.
designers have managed to carve a niche for orthotropic deck bridges in the domestic and overseas markets despite the lack of standardization.