Changes that were made related to the redesign of the Secretariat Building to avoid some of the structural work, a simplified reconfiguration of the chiller plant complex and consolidation of the curtain wall to fewer and more standardized types.
作出的改动涉及重新设计秘书处大厦以避免一些结构性工程，简化冷却机组的改装，并使幕墙的类型更少、更标准。