Steel ring beams in the TRI staircase

The steel ring beam basically holds the place up.

The central stair is the centrepiece of the courtyard, consisting of a shimmering glass exterior structurally sealed to a steel ring beam and suspended from parapet outriggers on the eighth level.

Each steel ring beam is made of three pieces consisting of two ‘C’ sections with a straight connecting member, with each section fixed at four locations to the concrete structure. Each level is around four and a half tonnes, including three tonnes of glass.

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