The main arena is roofed with a 47 x 47 m chord dome structure. The sub-arena has an elliptical roof of 27 m on the short side and 38 m on the long side. A column-free space is realized by installing a keel arch in the longitudinal direction. Both roofs have slit-like openings to let in the surrounding greenery. The three buildings and the plaza are built on the axis of the existing campus. The grand staircase and entrance gallery receive the existing axis.

Japan | Ibaraki

Shinkenchiku January 2010 issue 185P