「MITボストン計画1959」について : 丹下健三の「メガストラクチャー」プロジェクトの再評価(I)

抄録

In order to re-locate 'Megastructure' proposals of the Japanese 'Metabolism' group in the international context of post-war architecture and urbanism, it is necessary to re-evaluate them in terms of their spatial characteristics and, based on it, to expound the general concept of 'Megastructure'. For this re-evaluation, however,'Bay Projects' by Kenzo Tange around the turn of the 50's and 60's, namely MIT Boston Harbor Project, 1959 and A Plan for Tokyo, 1960 are of great significance. MIT Boston Harbor Project, 1959 is taken here as the earliest presentation of the concept of A-framed 'Megastructure' to link the individual building to the city through a three-dimensional circulation system. Its spatial characteristics are outlined through its analysis in terms of the interrelations between structural and spatial elements and compared with its supposed ancestors in the first half of the twentieth century in order to lead to a discussion on the general concept of 'Megastructure'.