GWD-Type Big Span Steel Bridge
Model Alias: CD450；CD；450
Extra Width Single lane: Bridge deck net width: 4.2m Maximum Free Span length: 82.296m
Std. Double lanes : Bridge deck net width: 7.35m. Maximum Free Span length: 91.44m
GWD-bridge is the patent of Great Wall;It was invited from Germany and has advantage in the long-span and big loading comparing to bailey bridge. Thus, it can save cost of piers.
Its panel chord is bigger than bailey bridge panel but the panel structure is simpler. All the components are bolted so the bridge can be used as a permanent bridge because of its small deflection..The components are interchangeable and repetitively used.This kind of bridge has various structure changes to satisfy different loading capacity.
D-Type Big Span Steel Bridge
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