The Equestrian Arena explores structural efficiency through the evolution of a three-hinged frame prototype into a complete long-span roof system. Initial studies revealed that achieving the required span with beams alone would generate excessive bending moments. To resolve this, we introduced a cable-supported system beneath each beam, pairing wood beams and columns with steel poles and cables to balance tensile and compressive forces.

The design is unified by zig-zag triangular columns that connect the 2D frames into a coherent three-dimensional structure, eliminating the need for diagonal bracing. Neighboring beams share cables and supports, while the roof ridge runs diagonally, creating a dynamic geometry that distributes forces across the system.

Structural performance was optimized using Karamba and Galapagos. By adjusting roof geometry, adding secondary supports, and incrementally increasing pole and cable lengths, we reduced deformation in the longest beams. Cross-section optimization allowed standardized wood elements to be sized for efficiency, achieving the least material mass while maintaining stability.

The result is a lightweight yet robust arena where structure and architecture merge. The interplay of wood and steel creates a rhythm of frames and cables, producing a visually expressive roof that responds to both functional demands and spatial clarity.