To build a 3D printed bridge Royal HaskoningDHV, an international engineering and project management consultancy, partnered with DSM and CEAD Group, supplier of market-leading, large-scale 3D printing equipment for composite additive manufacturing.
The result is a prototype bridge that is four meters long and 60 centimeters wide. Designed by Royal HaskoningDHV, the bridge was printed on the AM Flexbot, a modular robot-based solution for composite 3D printing from CEAD Group.
Maarten Logtenberg, CEO of CEAD says, “3D printing has evolved dramatically over the years. This 3D printed bridge prototype demonstrates the huge strides that we are making which will transform the future of this industry, not only speeding up construction, but also making the process more cost and time efficient.”
DSM’s Arnite® AM8527 (G) is a fused granulate fabrication material that was used to make the bridge. This produces a very strong, versatile and sustainable material. The bridge has been modeled parametrically which enables optimization of bridge design and internal web structure. Finite element analysis software combines material characteristics with advanced 3D print technology for more efficient bridge design and build. Applications for this type of bridge construction include permanent structures like cycle bridges or bridge deck replacements, as well as temporary structures for events, construction sites, marine and disaster situations.
“Using a material such as Arnite® AM8527 (G) has huge benefits for the construction of bridges. Rather than using traditional materials such as steel or concrete, these bridges can be much more sustainable and offer greater flexibility in design using recyclable materials,” says Patrick Duis, Segment Leader Additive Manufacturing at DSM.