Citicorp then hired architect Hugh Stubbins to design the tower and the church and Bill LeMessurier as the structural engineer, Stubbins explained the constraints they faced.
Citicorp's oscillations are damped through those energy losses as the block oscillates out of phase to the building's motion.
But Citicorp Center had a 100% probability of total collapse by the end of the century.
So Citicorp came to the pastor, Ralph Peterson, and asked, "What's it gonna take for you guys to leave?" And he came back and said, "We're not leaving.
But Citicorp can't have corner columns like this because of the gravity load.
As Citicorp sways to one side, the block starts to move in the same direction.
On Citicorp Center's opening day in 1977, it was the 11th tallest building in the world.
So Citicorp worked with the Red Cross to develop a 10 block evacuation plan.
So Citicorp's chairman immediately called AT&T's president and the lines were installed the next morning.
But Citicorp was safe.
This is Citicorp Center.
Anything that Citicorp builds has to involve the church as part of it." What the pastor wanted was for the church to have its own separate identity.
Just one year before Citicorp was completed, wind gusts of 110 kilometers per hour roared through New York City as Hurricane Belle passed through.
Their project description for Citicorp doesn't even mention the repairs.
And the Citicorp case is taught all over the world as a case of good engineering ethics.
The one about Citicorp tower nearly blowing over, that does well.
LeMessurier used this last one in Citicorp.
And since that first damper in Citicorp, TMDs have spread across the globe.
was working on a project about Citicorp in 1978.
I asked the head of Citicorp, Chuck Prince, at one point why he was doing a certain maneuver with his balance sheet
On August 8th, Citicorp released a statement about the repairs.
their analysis didn't include any internal structure specific to Citicorp.
But right now I was reading the Citibank stock-- Citicorp stock is back to 2009 years.
They wanted to see if quartering winds were more demanding for a building like Citicorp, Although they did conclude that the pressure from perpendicular winds was greater,
The fellow was chairman-- now to be called chairperson-- of Citibank or Citicorp.
So in the 1960s, the financial giant, Citicorp, was trying to build a new headquarters in Manhattan.
Team Veritasium travels all over the globe for our videos We traveled here to New York to visit the Citicorp Center, and there's one really annoying problem.
They completed the repairs in October, just six weeks after LeMessurier told Citicorp.
The repairs cost between $4 and $5 million, but LeMessurier argued that Citicorp approved an earlier building design that cost $5 to $6 million more,
She's worked for lots of large corporations, like HP and Citicorp and some biotech startups in the area.
But around a month later, LeMessurier got a phone call from a student who wanted to ask some questions about the Citicorp Center.
After speaking to a few lawyers and other engineering experts, LeMessurier told the architect, Stubbins, and together they informed Citicorp's chairman, Walter Wriston.
It was time for her to consider a senior thesis, and then they decided that a study of the new Citicorp Tower would be wonderful.
In fact, in my own engineering ethics course, I learned about the Citicorp building.