Highlight:
Modular Steel Truss Modules
, ASTM A588 Corten Bridge
, Weathering Modular Footbridge
Steel Grade: |
ASTM A588 Grade A / B Corten Weathering Steel |
Configuration: |
Repeating Shop Built Truss Modules |
Interchangeability: |
Single Jig Built, Jig Drilled Splice Plates |
Connection: |
A325 / A490 High Strength Friction Grip Bolts |
Field Work: |
Lifting And Bolting Only, No Site Welding |
Span Strategy: |
Fixed Span Or Extendable By Adding Modules |
Surface Strategy: |
Bare Weathering With Zoned Galvanizing |
Welding Standard: |
AWS D1.5 With UT And MT Inspection |
Delivery: |
Bundled In Erection Sequence With Module Schedule |
Modular Corten Steel Plate Truss Bridge - ASTM A588 Weathering Shop Built
Modular Bridge Series
Modular Corten Steel Plate Truss Bridge
Built as repeating shop modules, shipped inside standard containers, and bolted together on site. Span grows by adding modules, not by redesigning the bridge.
Modular Steel TrussASTM A588 Corten Steel PlateWeathering FinishContainer Shipped Modules
Repeating modules
One design, many span options
Container friendly
Modules sized for standard shipping
Bolt only assembly
No site welding, no drilling
Bare A588 finish
Weathering layer instead of paint
The brief
Modular is a logistics decision, not just a design style
Long truss bridges usually run into the same three constraints: how the span is transported, what the site crane can lift, and how much work has to happen at height. A one-piece truss solves none of them. This bridge is divided into repeating plate truss modules that are shop built to the same jig, shipped as standard modules inside containers, and bolted together on site in sequence. The span is extended by adding modules, so one design family covers a range of crossings, and a damaged or relocated module can be replaced without rebuilding the bridge.
Module chain
From standard module to finished span
1
Module definition
The truss is split into transportable modules with the same chord gauge and node pattern. Module length is set by container or truck limits, and the span is reached by module count plus end panels.
2
Shop build to one jig
Every module is assembled and welded in the same jig, so mating faces, bolt gauges and camber match across the whole run. Interchangeability is designed in, not sorted on site.
3
Module trial fit
Modules are trial fitted in pairs or in a full run before packing, confirming that the next module will bolt straight onto the previous one.
4
Container packing
Modules, bracing and splice plates are packed in the assembly sequence, with match marks that follow the erection order rather than the drawing order.
5
Progressive site assembly
Modules are lifted and bolted one after another, either on temporary supports or by cantilever from the abutment. Deck and railing follow behind the truss, so access is never blocked for long.
Technical data
Modular structure requirements
| Item |
Technical requirement |
| Material and metallurgy |
ASTM A588 Grade A / B low alloy weathering steel plate, alloyed with copper, chromium and nickel to form a dense adherent oxide layer under alternating wet and dry exposure. Plate supplied bare with mill test certificate per heat. |
| Module configuration |
Repeating plate truss modules with constant chord gauge and node pattern, closed by end panels that carry the bearings. Truss depth is set by span and pedestrian or light vehicle load case. |
| Interchangeability |
All modules are built in the same jig with jig drilled splice plates, so any module of a given type fits any position in the run. Replacement and future extension do not require re drilling on site. |
| Connection system |
Bolted splice connections with A325 / A490 high strength friction grip bolts. Field work is lifting and bolting only, with no site welding, no flame cutting and no hole reaming. |
| Camber and geometry |
Camber is set per module in the jig and verified when modules are trial fitted as a run, so the assembled span meets the required profile instead of being corrected at height. |
| Surface and corrosion strategy |
Bare weathering finish on ventilated members, with hot dip galvanizing or coating at bearings, splash zones and any buried steel. Modules are protected against transport marking and stored on dunnage. |
| Welding and inspection |
Full penetration welding to AWS D1.5 with qualified WPS, ultrasonic and magnetic particle testing of structural welds, and dimensional checks on every module before packing. |
| Delivery and documentation |
Modules bundled in erection sequence with splice plates and bolt sets per joint, supported by erection drawings, module schedule, bolt schedule and inspection records. |
Where it is used
Modular applications
Long span pedestrian bridgeRiver and canal crossingSite access and haul road bridgeTemporary and emergency detourMining and port conveyor walkwayRelocatable industrial crossingEvent and campus footbridge
Scope of supply
What ships with the modules
✓Repeating truss modules and end panels with bearings
✓Bracing sets, floor beams and deck support members
✓Jig drilled splice plates and A325 / A490 bolt sets per joint
✓Module schedule, erection drawings and lifting point plan
✓Mill test certificates, WPS and NDT reports per module
✓Packing list in erection sequence with match marks
Your decisions
What can be tailored
Module length
Set by container, truck or crane limit. Shorter modules are easier to handle, longer modules reduce the number of site joints.
Span build up
Fixed span with end panels, or extendable span where additional modules can be added later on the same abutments.
Deck and access
Steel grating, timber or composite deck, with optional maintenance walkway, kerb and railing configuration.
Finish strategy
Bare weathering throughout, zoned galvanizing at bearings and splash areas, or a full coating system for a specified colour.
Buyer questions
Answered up front
QCan the bridge be extended later by adding modules?
AYes, if it is ordered as an extendable configuration. Abutments and bearings are sized for the future span, and the module type stays the same so new modules bolt onto the existing run.
QCan a damaged module be replaced on site?
AThat is the main advantage of interchangeability. The damaged module is unbolted and lifted out, and a replacement built to the same jig goes in without re drilling the adjacent modules.
QWhat crane capacity does site assembly need?
AIt depends on module length and truss depth, which are chosen partly to suit the crane available on site. Tell us the crane and access limits and the module split is adjusted to match.
QIs the bridge suitable for temporary or relocatable use?
AYes. Bolted modules can be dismantled, transported and re erected on new abutments, which is common for detour and construction access bridges.
QHow is the bare finish protected during shipping?
AModules are packed on dunnage, separated at contact points and protected from oil, mud and salt spray. Contamination is the main risk to patina development, so packing and handling instructions are issued with the shipment.
Search terms
Related capabilities
modular steel truss bridgeASTM A588 Corten bridgeweathering steel modular bridgecontainer shipped steel bridgebolted modular footbridgeprefabricated truss modulesrelocatable steel bridgeshop built steel trusscorten steel pedestrian bridgesteel plate truss fabrication
About us
FAMOUS Steel Engineering has been designing and fabricating structural steel since 2002 from Hangzhou, China. Detailing, CNC cutting, jig assembly, welding, trial fitting and inspection are handled in house, so every module leaves the shop to the same gauge. Trial orders are welcome.
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