GreenHouse, Nanjing, China

The exhibition greenhouse complex is composed of three distinct structural units, each reflecting its architectural form: two "large leaves" (Exhibition Greenhouse Zones I and II) and one "small leaf" (the Science Education Center).
Zones I and II feature an innovative "inverted" roof design, with the structural framework positioned above the glass panels. This creates a biomimetic system that resembles two adjacent leaves, built through a hierarchical arrangement of primary trusses (main veins), secondary trusses, and purlins (sub-veins).
The leaf-shaped structures are geometrically defined by dual cylindrical surfaces. The primary vein runs along the ridgeline where the cylinders intersect, while the secondary veins align parallel to the cylindrical axes.
This sophisticated yet efficient design offers several key benefits: it simplifies engineering processes, eliminates the need for complex 3D curved pipe fabrication, and seamlessly integrates structural and aesthetic elements. Ultimately, it demonstrates how biomimicry can enhance both architectural expression and construction practicality.