Citigroup Center - Learning from failure (06)
SPAN6 Jan 2025

Citigroup Center - Learning from failure (06)

Picture the scene: you're given a nice chunk of land to develop and make billions, but there's a catch. There's already somebody situated on the plot of land who won't budge - you need to share.

This was the problem faced by structural engineer William LeMessurier in 1976 for the construction of Citigroup Centre at 601 Lexington Avenue in New York City.

His seemingly simple design solution created a chain of design implications, which cumulated in SERENE - the code name for the secret emergency works required for this skyscraper which was found after construction was complete to have a 1 in 16 chance of collapse in any given year...

Happy New Year!!

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Episoder(40)

Future Construction Materials - Structural Behaviour (15)

Future Construction Materials - Structural Behaviour (15)

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Engineer's Bread Part 1 - Structural Behaviour (13)

Engineer's Bread Part 1 - Structural Behaviour (13)

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Maintenance and Reuse - Structural behaviour (12)

Maintenance and Reuse - Structural behaviour (12)

A building structure doesn't simply exist; once it is built it requires upkeep and materials for repair, just as a plant requires pruning and nutrients. Unfortunately, the maintenance or reuse of a 30...

21 Apr 202559min

Ponte Morandi - Learning from failure (07)

Ponte Morandi - Learning from failure (07)

If a batch of muffins 'may contain traces of nuts' but you have to use your epipen pen after the first bite, do you continue to eat the remaining muffins? If somebody had said to you 'thismuffin is wr...

26 Mar 202552min

Atria and long span structures - Structural behaviour (11)

Atria and long span structures - Structural behaviour (11)

Spanning long distances without internal supports is a challenge encountered in many structures. Think of sports centres, exhibition halls, malls, airports, train stations etc. What options does the s...

5 Mar 202556min

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