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Originally Posted by drumz0rz
I disagree that the attachment to the original WTC comes from their absence. They were by far my favorite buildings while they stood. I was only a child but I was pretty obsessed with them. Yes they were 60s modern grey boxes, but they were revolutionary in a multitude of ways and beyond that, they stood as a defiant contrast against the slender bank towers which dominated downtown.
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I respect your opinion. I just don't agree with it. The original Twin Towers hold a special place in my heart too. But I wonder how much of that is clouded by the manner in which they left us. I think in a few decades the new One WTC will grow on people the same way the initially much-maligned Twin Towers did. Because if this forum existed in the early 70's, I think we would all be complaining about them too.
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They were the first true "super tall" buildings, and there was 2 of them. Everyone has differing opinions but I consider the loss on 9/11 one of the worst architectural losses in history. For all it's gritty grandeur, I don't think the old Penn Station held a candle to the WTC complex.
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Like I said, I respect your opinion and I won't belittle you for thinking differently. I'm not sure the two are even comparable though. They made impacts for different reasons. Penn was a gem in the rough with a focus on interior and underground grandeur and the Twins dominated a skyline. Perhaps a better comparison would be the Singer building, which was also a huge loss.
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The Citigroup Center never 'almost collapsed' nor was the issue structural design. The fabricators decided to cut corners and use bolted joints instead of welded joints as the engineer had specified. No one bothered to recalculate the loads after the switch. After the building was constructed, the engineer found out about the switch, locked himself in a room for a week, and figured out that if 70mph winds hit the building at a 45-degree angle, the bolts would sheer and the tower could fall over killing thousands. They secretly welded thick steel plates over every single bolted joint in the building to reinforce it. If welded joints had been used in construction, there would have been no issue despite the recalculated loads.
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If hurricane force winds, like Sandy, had impacted Citigroup from a certain angle during this time it would have collapsed. Guess what, Sandy happened. So, since conditions exist in New York for that kind of event, we're talking about lucky timing. To me if there's a 5% chance of a tower having a catastrophic collapse that would have killed thousands, that's pretty damn huge.
As for design, weren't some of these issues caused by their decision not to demolish the church, but build around it and support the structure with pillars? I'm pretty sure I read that.