An innovative AM- bridge project demonstrates the successful convergence of state-of-the-art additive manufacturing and traditional craftsmanship. The pedestrian bridge serves as a physical case study for the integration of digital planning, material optimization, and hybrid structural engineering.

The bridge utilizes a hybrid structural design that combines 3D-printed concrete components with CNC-manufactured timber beams. By pairing the compressive strength of concrete with the tensile and bending capacity of wood, the project exploits the unique material properties of both systems. This dual-material approach highlights how established building materials can be seamlessly combined with emerging automation technologies to create functional, resource-efficient structures.

A critical phase of the development process involved comprehensive digital planning and geometric optimization. The structural performance and material distribution were refined through advanced parametric workflows. The concrete cross-sections were dynamically adjusted using a parametric optimization algorithm to maximize material efficiency and ensure an even distribution of internal stresses. Simultaneously, various cross-sectional sizes and profiles were analyzed for the laminated wooden beams, resulting in a delicate, visually lightweight, yet highly load-bearing support framework.

The fabrication process required deep coordination between digital modeling and physical production. The concrete components were produced using custom-developed 3D concrete printing (3DCP) methods. This required rigorous laboratory testing, material mixture calibration, and trial prints to guarantee structural integrity and surface quality. Simultaneously, the flat wooden beams were routed from laminated timber panels using high-precision CNC milling. The wood elements feature functional, ornamental milling and precise notches that reduce overall self-weight while creating physical keys for the exact positioning of the concrete modules.

The final assembly relied on an intelligent, modular design. The 3D-printed concrete modules fit precisely into the CNC-milled notches of the timber beams, allowing the components to be joined securely without the need for complex, heavy fastening hardware. The final structure stands as a successful demonstration of pioneering construction methods, showcasing how precise digital workflows bridge the gap between architectural concept and physical execution.