Design Innovation The structural steel porte cochère proved to be the most challenging structural design element on this project . The challenge set by the initial architectural design was to provide a long spanning , aesthetically seamless and very thin element that covered the drop off zone at the hotel entrance . The initial structural concepts included casting the entire frame in concrete . This was scrapped very soon after due to the poor long-term performance and undesirable weight of the structure . Structural steel elements that included I-beams rolled into curves on two different planes were also explored , this too provided too many challenges including technical fabrication limitations and general installation issues on site . After a complex design and detailing
22 Radisson Hotel