Development of a new bridge construction method using suspension structures

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Development of a new bridge construction
method using suspension structures

 

A unique suspension method developed over a period of more
than 10 years produces a rational structure in the form of a
single-span composite truss bridge. For this structure, the steel
truss and concrete deck are constructed on the spanning cables.
During construction the horizontal forces of these cables are
anchored into the ground, but after completion of the bridge the
forces are transferred to concrete upper and lower chords as
prestressing forces. A single-span composite truss bridge of this
type can be constructed without temporary supports or falsework.
Using this method to bridge a deep valley produces benefits
in terms of both construction costs and sustainability. A single-
span bridge requires less excavation than other bridge types,
and utilizing a composite truss with this construction method can
minimize the environmental impact of the construction.
Keywords: composite truss, double suspension structure, environmental
impact

 

 

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