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  1. tornear

    Opal Tower - Sydney Australia

    I think what is meant by 'They placed the panel on L10 upside down' is that the reinforcement cage was placed in the mould upside down, and the rest of the hardware and ducts went in to design. As you point out, it is hard to lift a precast panel without lifting points on the top edge, not to...
  2. tornear

    Opal Tower - Sydney Australia

    Columns shown in the ACA preview look like the result of concrete getting behind the plastic liner inside a formatube (or similar form system).
  3. tornear

    Opal Tower - Sydney Australia

    Thanks mangotree, an interesting and reserved letter from Cardno. Having thought a lot about this failure, I would like to pose a question to the thread: what was different on 24 December from 23 December or earlier? The building was completed in August, the elements in question at Level 10...

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