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Photographer's Note

I just saw an episode of BBC series Engineering Connections describing inventions and civil engineering behind the construction of Sydney Opera House. That inspired me to upload this shot taken at the Opera Bar two years ago.

Sydney Opera House is an architectural marvel that required special construction techniques. So called 'shells' of the building are actually precast concrete panels supported by precast and post-tensioned concrete ribs. Forms of shells are sections of sphere. This solution allows arches of varying length to be cast in a common mould, reducing costs. The design is also one of the first in the world to use araldite to glue the precast structural elements together.

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Additional Photos by Kari Tanskanen (ktanska) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3107 W: 54 N: 3541] (21513)
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