3D print for cast-in-place concrete

Cast-in-place Freeform Concrete with Big Area AdditiveManufacturing Formwork

Ming Tang, Noah Shroyer. Cast-in-place Freeform Concrete with Big Area AdditiveManufacturing Formwork. International Journal of Architecture, Engineering and ConstructionVol 10, No 2, Vol 10, No 2 (2021) 1-9

Abstract: Parametric design and digital fabrication give precise control in the design and materialization of complex geometric forms. Large-scale additive manufacturing machines can fabricate digitally generated architectural forms quickly and economically at full scale. However, their application in building construction has been limited. Through a case study, this paper examines integrating parametric design with material and constructed reality through 3D printed formwork for cast-in-place concrete. The following details are presented: (1) creating a parametric model capable of designing, testing, and manipulating the customized freeform in response to construction and material constraints, (2) fabrication method of big area additive manufacturing of formwork with carbon fiber-reinforced acrylonitrile butadiene styrene plastic, and (3) construction process (studying material behavior, testing the formwork, and the final onsite concrete cast)

This project was supported by the computation team led by Ming Tang, the design team led by Jose Garcia Design, the structural engineering team led by Pinnacle EngineeringInc, formwork and fabrication led by Cincinnati Incorporated. The project was constructed by the general con-tractor Jose Garcia Construction. The rebar shop fabrication was provided by Artistic Ironworks.