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Arup Reveals Cutting Edge of 3D Printed Structural Steel

The three structural steel components shown are all designed to carry the same structural loads and forces. The difference is that the far smaller item on the right is designed using additive manufacturing methods, applied by Arup. (Photo courtesy of Arup)

The above photograph, released last week by Arup engineers, reveals the future potential of 3D printing for the construction and manufacturing sectors.

Using the latest 3D printing techniques, or more accurately, “additive manufacturing,” Arup has produced a design method for critical structural steel elements for use in complex projects. The image illustrates how additive manufacturing can enhance the design and production process to the point that the weight and resulting cost of future construction materials could be reduced significantly.

"This is not only an exciting development for the construction sector, but many other industries as well,” said Salomé Galjaard, team leader at Arup. “In the case of this particular piece, the height is approximately half that of one designed for traditional production methods, while the direct weight reduction per node is 75%. On a construction project that means we could be looking at an overall weight reduction of the total structure of more than 40%. But the really exciting part is that this technique can potentially be applied to any industry that uses complex, high quality, metal products."

Arup says the additive manufacturing approach means that manufacturers can create highly complex, individually designed pieces and print them directly in metal. This in itself has tremendous implications for reducing costs and cutting waste. But the latest advances in the design techniques explored by Galjaard’s team mean that far smaller, lighter elements can deliver the same function and strength as those created by traditional methods.


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