Compact Portable Steel Bridge Q345B Steel temporary bridge
1• Adaptable - pre-engineered to match each application
2• Fast - modular stocked components, open to traffic in days
3• Lower Cost - an alternative to custom designed bridges
4• Easy - to handle, transport, assemble, install and reuse
Ease of Assembly and Installation
Most Bailey bridges are assembled and installed in a matter of days
by a small crew. Common hand tools are utilized. All connections
are pinned, bolted or clamped. No welding is necessary. Disassembly
is similarly easy, and components can be stored in minimal space
until reused. Bailey bridges are often installed by the cantilever
launching method, in which the assembled bridge together with a
“launching nose” is rolled out across the gap, without falsework or
heavy equipment. The cantilever method allows bridges to be quickly
erected over rivers or deep gorges. Additionally, some Bailey
bridges may be hoisted into place by crane.
Bailey bridge components can be assembled in seven different
configurations to efficiently accommodate a wide range of span and
capacity requirements. Panels, the primary Bailey components, are
pinned together at the job site to make girders of any length.
Various girder strengths are achieved by assembling either a single
row of panels, or two or three rows side-by-side. Panels may also
be stacked in double-story height for further increase strength.
For greatest strength, longer spans may be chord-reinforced.
|Surfrace||Hot dip galvanization or as requested|
|single lane||length 3*X width 4.2m (X is the number of panel)|
|two lanes||length 3*X width 7.35m (X is the number of panel)|
|High strengthen bolt(M20X70)|
|Components||High strength bolt||Cr 40, electro-galvanization|
|Sleeve||Steel Q235 & #45, electro-galvanization|
|Purlin||Steel Q235, galvanization|
|Roof & Wall panel||Sandwich panel or as requested|
Beam bridge,arch bridge,rigid frame bridge,cable-stayed
|Structure drawing design|
According to the supplied technology parameters by customers
(for instance: wind speed, rainfall, snow load, earthquake etc.),
we can provide
the design service. More specific parameter contents can be gotten
Steel structure preliminary design parameter table.