Challenges
The design of the building had several challenges
that needed to be resolved. These included a
complex system of beams and strengthening of
columns around the observation lift shaft that
supports all of the pause areas and their different
floor plates. This was accomplished through the
detailed analysis and design of the concrete work in
this area to ensure the bare minimum was utilised
to maintain the open flow of space between the
No. 1 Mutual Place
floors. Furthermore, the atrium roof on the 5th
floor needed to tie into this system and span 22m
between the Main and Podium buildings. A feat
accomplished through the design of post tensioned
concrete beams that are shaped to reduce the
visual impact on the 4th floor office space. Another
structural challenge was the feature ‘V’ and ‘Y’
columns on the ground floor that channel the
forces generated by all the office floors off the
main façade line and into the basement structure.
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