They did the same thing when they built E:E.Something I've been wondering:
It looks like they incorporated the worker platforms into the rock mountains by having all those steel bars sticking out and laying scaffold decking boards over top them. This is an awesome idea, as opposed to building lots of scaffold towers everywhere, but I wonder how those steel beams will be removed once the rock face is completed? Also, are they doing the rock facade around the beams, removing them later, then patching in all those holes?
See these older pic for reference, notice all the support beams sticking out and supporting the work platforms:
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They get cut off an covered at the end.