Waseda University Honjo Senior High School Gymnasium

This is the gymnasium of a high school affiliated with one of Japan's leading private universities. Its concept is based on the idea of what an educational facility should be like.
Generally, gymnasium windows are often closed with blackout curtains for sports activities, but this project aimed to create a gymnasium that blocks strong direct sunlight while still allowing a sense of the outside environment, and is filled with indirect natural light suitable for indoor sports.
Therefore, we planned four structural "tubes" around the perimeter of the arena. These tubes play a crucial role in the gymnasium's functionality, including air conditioning, lighting, and sound systems, and are designed to allow access for facility management through hatches in the walls. The widest tube also serves as a corridor, which is used as a running course and simultaneously guides indirect light to illuminate the arena.