Truss bridge (JTB)
Depending on the location in the construction, both tensile and compressive forces occur in the construction parts. The specific concept of trusses ensures that there is no (or little) bending moment in the beams.
A truss bridge is typically used for mid- and long span bridges. The bridge’ structural strength is reached through the truss structures on both sides of the bridge deck and shaped as triangle parts. Triangles are dimensionally stable and thus offer the required structural strength. Trusses are popular for bridge building because they use a relatively small amount of material for the amount of weight they can support. Sometimes the truss construction is also carried out under the deck, instead of above it.
Traffic
Solution
Products
Type
JTB
Modular field length
4 meter
Road width
3,25 - 4 - 7,5 meter
Maximum free span
100 meter
Pedestrian
Solution
Products
Type
JTB
Maximum free span
100 meter
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The Truss bridge is of low maintenance, requiring minimum inspection after construction.
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Most suitable for semi permanent and permanent use.
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Minumum welding and only bolt-connected parts that are more resistant to fatigue.
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No on site welding required.
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Permanent positive camber.
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Manual erection with minimum mechanical handling equipment because of its light elements.
Highlighted
Project
Portable Steel Footbridges - Chile
To improve the road safety for pedestrians and increase accessibility the government of Chile has purchase several Janson Portable Steel Bridges.
Project
Janson Truss Bridges - Ghana
Supply of steel bridges including supervision services for the enhancement of rural development on selected feeder roads.
Project
Caroline bridge - Surinam
The Carolina bridge in Surinam replaced a bridge that was never completed. In 2007 a ship collided with the concrete piers of the bridge under constru...