写真

Because the site is bordered by the following:
(1) rivers
(2) rails
(3) roads

the designers started with an equilateral triangular base. Vertical lines visually rise like a tripod on this base. The triangle form gradually becomes a circle at the top.

"The change from the triangle to the circle also entailed warp and camber which are traditional shapes in Japanese culture."湧ikken Sekkei Design Concept.

Structurally, the tower is built like a giant tree with deep roots into the ground. At the base, steel tubes (2.3 meters in diameter and 10 centimeters thick) form the base of the structure's trunk, a series of trusses and branch joints. The reinforced concrete center column is structurally separate from the surrounding steel framing, an earthquake-resistant design similar to multi-storied pagoda temples.

Why 634 Meters?
"The sound of the number 634 when read in old Japanese numbers is mu-sa-shi, which reminds Japanese people of Musashi Province of the past, that used to cover a large area, including Tokyo, Saitama and part of Kanagawa Prefecture."� Sky Tree Official Website