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Box girder Applications
Katalor Box girder are widely used as the deck elements of cable-stayed and suspension bridges, where the torsion stiffness of a box is important for the dynamics of such long span bridges.
Box girder Feature
Katalor Box girder steel Material: Q235B, A36, A283C, SS400, SM400A, S235JR/J0/J2, St37-2, FE360B, E24-2, Q345B, A572Gr.50, SM490B, S275JR/J0/J2, S355JR/J0/J2, St52-3, FE510B, E36-2.
Steel box girder has great torsion rigidity, which makes them ideal for bridges that are highly curved in plan or where construction by launching is required.
Compared to an I-beam, the advantage of a box girder is that it better resists torsion. Having multiple vertical webs, it can also carry more load than an I beam of equal height (although it will use more material than a taller I beam of equivalent capacity).
Where a large box girder contains more than two walls, i.e. with multiple boxes, it is referred to as a cellular girder.
A box girder is a girder that forms an enclosed tube with multiple walls. Originally constructed of riveted wrought iron, they are now found in rolled or welded steel, aluminum extrusions or pre-stressed concrete.
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