Architecture, Building and Structure Design Tianjin Zarsion Exhibition Center by FTA Group Tianjin Zarsion is an exhibition center built beside a tributary of the Yongding River in Tianjin, China. The plan uses a water drop shape set diagonally on the site, which lengthens the approach from the city edge to the entrance. Deep eaves and large glass surfaces create a light roof that appears to float. The structure is mainly wood, supplemented by steel, and 68 radial red pine beams form an umbrella-shaped arched frame. Eight interior wooden columns allow a wide column-free hall. A leaf-shaped skylight is sized to keep the interior light soft and quiet.