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 has been widely used in rescue and disaster relief, traffic engineering, municipal water conservancy engineering, dangerous bridge reinforcement, etc. in addition to being a war-ready steel bridge.
4. longer span