Applicable scope: Type 321 assembled steel bridge deck width: 3.7m single lane cross by: 9-75m

The 321 type of fabricated steel bridge is combined with China's national conditions and the actual situation of the rapid assembly design of Traffic Department of Institute of highway design and planning of the bridge on the basis of the original British Bailey truss bridge, is a standard bridge decomposable, fast erection, full bridge using high strength steel welded girder truss can be made, for the light decomposition, truss are connected by single pin, component interchangeability is strong, light weight, convenient transportation, also can be assembled into various types of fabricated steel according to the transportation and span requirements, is widely used as a kind of perfect emergency traffic guarantee assembled steel bridge. Used in car -10, car -15, car -20, -50 grade, -80 grade crawler Trailer 5 load.