Structural Design of Tokyo Sky Tree

Presented in this paper is an outline of a structural design of Tokyo Sky Tree which is a new core facility of digital broadcasting for Tokyo metropolitan area of Japan. It will be a height of 634m, double the height in Japan, and the highest tower in the world for broadcasting, when completed. The requirements for structural designs in Japan are extremely severe, because several typhoons arrive every summer and big earthquakes occur with high probability, and consequently Tokyo Sky Tree was required to adopt high criteria, over the building regulations in Japan, because of its heavy public responsibility to send valuable information to the victims in a big disaster.

Unique systems for a vibration control, the core column system and the rigid substructure system, were invented for this tower to satisfy the requirements for structural designs.