As for the building materials such as stainless steel, concrete and glass,
only the minimum required amounts have been used. On the stainless steel
2B punch panels during the daytime there is a vague reflection of the
city, but at night by practically erasing its own existence, the light
from inside the building oozes out. With an unobstructed, dominating size,
the exposed concrete finish of the ceiling gently reflects outside light
in the daytime, and at night is lit up to show its existence.
With regard to the structure, 200-millimeter-diameter steel rod columns
vertically support the 300-millimeter-thick RC flat slabs, and with regard
to the horizontal strength, a frame structure is employed where the entire
horizontal load is supported by the earthquake-resisting walls without
using any beams in the standard floors. By focusing on the steel rod columns
only handling the load of the long-term compressive axial force, a simple
method of bearing pressure joint was devised and implemented, doing away
with the need for welding for the column joints. As a result, it only
took around five minutes to complete the installation of one column. Furthermore,
the Fireproof Performance Verification Program was used, enabling columns
without fireproof coating to be used almost entirely in the carpark section. |
