Tall Building case studies - Tall Buildings: Structural Systems and Aerodynamic Form - page 140

Because some of the interior columns in the sloping towers and all of the interior
columns in the cantilever section, do not continue throughout the height of the
building from top to bottom, owing to the form of the building, 2-storey-deep transfer
beams were used in order to transfer the column loads ( Figure 4.34 ). The transfer
beams are situated on the bottom two storeys of the cantilevered section and on the
mechanical equipment floors in the sloping towers.
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