A large-span, twin cone curved geometry tensile membrane structure, engineered to cover a full amphitheater footprint and transform it into a functional, column-free dining facility.
Unlike a conventional conical form, the geometry of this structure follows the natural curvature of the amphitheater's outline — with every edge boundary precisely matched to the sweeping perimeter of the space.
The entire structural load is carried exclusively along the boundary edges, eliminating the need for any intermediate columns or internal structural members, and delivering an unobstructed, open-plan sheltered environment across its entire span.
The structure simultaneously accommodates four distinct deck levels within the amphitheater, with an elevation difference of approximately 15 meters across the levels — each deck seamlessly integrated under one continuous roofing membrane, while maintaining full functional connectivity between all levels and their associated kitchen and pantry services.
Originally an underutilised outdoor amphitheater, this space was reimagined and operationalised as a covered alfresco cafeteria extension for a large IT company campus — now comfortably accommodating 400 to 500 diners simultaneously.
The tensile membrane canopy provides complete weather protection across all deck levels, enabling employees to enjoy an expansive, landscape-integrated outdoor dining experience during lunch and dining breaks.
The multi-level layout preserves the character of the original amphitheater while delivering a fully functional, connected dining infrastructure — with unobstructed sightlines, natural light diffusion through the membrane, and a seamless visual connection to the surrounding landscape.
What was once a neglected, non-functional amphitheater is today a thriving, fully operational dining destination — and that transformation is the story of MECANCO's engineering philosophy in action.
The challenge here was not just the scale of the span, but the complexity of designing a single unified roof over four terraced deck levels with significant elevation differences, varied terrain conditions, and the functional demands of a live cafeteria operation.
Our team engineered a solution where every structural member lives on the boundary — leaving the interior entirely free, open and uncompromised.
The result is a column-free facility of rare architectural quality, where employees don't just dine — they experience space.
This project stands as one of MECANCO's most compelling examples of how structural intelligence and design sensitivity can together unlock the true potential of an underutilised space.