Belgium Pavilion EXPO 2020 Facade
Recreating the iconic wooden trellis facade of the Belgium Pavilion using advanced computational design logic and Revit nested families.
Key Techniques
Computational Logic
Embedding mathematical formulas to control the rotation and scaling of individual facade elements.
Nested Families
Using a hierarchy of nested families to manage detail levels and improve performance.
Material Parameters
Driving material assignment through shared parameters for accurate quantity takeoff.
Project Stats
- Software: Revit 2024
- Complexity: High
- Category: Sustainable Facade
Project Overview
The Belgium Pavilion at EXPO 2020 was celebrated for its sustainable design and intricate wooden facade, known as the "Green Arch." This project serves as a case study for modeling high-density, repetitive components in Revit without sacrificing model performance.
Technical Challenge: The facade consists of thousands of timber louvers of varying lengths and orientations. Manually placing these is impossible; using standard arrays creates heavy files.
Solution: We implemented a repeating detail component strategy nested within an adaptive host. This allows for:
- Rapid propagation of the design across complex double-curved surfaces.
- Instant updating of the entire facade by modifying a single seed family.
- Accurate scheduling of timber volume for sustainability calculations.
This tutorial demonstrates that with the right family architecture, Revit can handle even the most geometry-intensive sustainable designs.