Otemachi 1-6 Plan -- Ultra High-rise Building Using World-class Ultra High-strength CFT Columns

摘要

Two requirements have increasingly emerged in recent high-rise building construction projects: longer spans to enhance freedom in the space design of standard floors and wide atriums that promote structural continuity between the lower floors and the surrounding external space. In order to realize these two requisites, it is generally necessary for the structural members used in framing to bear large forces and, as a result, to grow in volume. However, the appropriate combination of high-strength members can prevent excessive increases in member volume.