[scalziand]

^I really have no clue on that one. Maybe another contractor was supposed to come in after the steel contractor had finished and encase the columns in concrete to make it stiff enough. It's odd enough that the steel was pretty much topped out, and yet it looks like the floors weren't even added. It's certainly a very odd construction sequence. Either way, someone screwed up big time. At least there were no casualties as a result, unlike the willful negligence by the owners of the Sampoong department store which resulted in hundreds of deaths.