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As a former mechanical engineer, I'd be interested in more details about the same thing but the referenced article is the best I've been able to come up with absent doing some serious research.

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In the case of the Queensferry Crossing I wonder if ease of cable replacement is one of the reasons behind the design choice. The Forth Road Bridge [0], a suspension bridge over the Forth to the East of the Queensferry crossing, has suffered from cable corrosion [1]. There is no easy way to replace the main cables in a suspension bridge without first removing the deck it suspends, causing years of service interruption. In a cable-stayed bridge it seems you could perhaps replace one cable at a time while the surrounding cables take the load.

I live with a view of the bridges, it has been fascinating watching them construct the new bridge.

[0] https://en.wikipedia.org/wiki/Forth_Road_Bridge

[1] http://www.bbc.co.uk/news/uk-scotland-edinburgh-east-fife-32...

The cable are designed and installed in such a way they can be replaced whenever needed without disrupting traffic that much. (Lane closures may be needed)

In fact, it is designed with enough redundancy that if lightning or an accident takes out 2 (maybe 3 , can't remember) of the cables, the bridge will still stand.

Me too! It look's really pretty at sunset.

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