TECHNICAL SPECIFICATIONS Owner: Expo 2020 DubaiArchitect: Adrian Smith - Gordon Gill ArchitectureGen. Contractor: Cimolai Rimond Middle East Contracting LLCDescription:  the “trellis”, or shading structure, has been designed to bear a resemblance to the Expo 2020 logo. The Trellis is a long-span shell structure than extends across the 130 m of the central plaza area and rises to a height of 67 m. It consists of grade S460 pipes forming interconnected rings that produce the pattern of the shell. Trellis pipe diameters have been standardised at 508 mm with thicknesses varying from 10 mm to 50 mm.