[Rendello]

This reminds me of the Citycorp Center near-disaster:

> LeMessurier's original design for the chevron load braces used welded joints. To save money, Bethlehem Steel proposed changing the construction plans to use bolted joints, a design modification accepted by LeMessurier's office but unknown to the engineer himself until later.

> With the tuned mass damper active, LeMessurier estimated that a wind capable of toppling the building had a one in fifty-five chance of happening any year. But if the tuned mass damper could not function due to a power outage, a wind strong enough to cause the building's collapse had one in sixteen chance of happening any year.

https://en.m.wikipedia.org/wiki/Citicorp_Center_engineering_...

[eru]

1/55 chance of toppling over every year still sounds pretty bad..

[Rendello]

That was his "oh shit" re-calculation. The welded the joints in secret at night and it's supposedly been safer since.