More Weird NYC Engineering

[kissymoose]

Check out this connection WSP came up with for a 66 story Manhattan skyscraper. They've got outriggers transferring vertical load into the core and horizontal trusses at the same location (they said some of the outrigger members are designed for 11,000 kips), coming in at varying angles to one point, so they decided the most economical thing would be to forge big ole cubes of steel to weld the members to. Some of those bad boys are probably around 3 tons by themselves.

 

[MJB315]

Check out what Eric Hines did with forged connections in the article below. Instead of making a complex HSS welded connection, the team cast the connections and made the welding attachments much cleaner. Article from 2011 in Modern Steel Construction.

Called "Turning the Corner with Steel Castings"

https://lsc-pagepro.mydigitalpublication.com/publication/?m=7946&i=89350&p=38&ver=html5

"We shape our buildings, thereafter they shape us." -WSC

 

[bones206]

It makes a lot of sense to do it that way. Much cleaner and more natural.

 

[MotorCity]

Even these massive chunks of steel have some astronomical capacity. Wonder what their limit state would be? Bearing? How does one check the world's biggest block of steel? We as engineers like to put numbers to things, so I'll go first...….two bazillion kips.