3 ms·

Also the steel cable strength calculated in the submitted proposal exceeds the safety margin of the cable’s yield strength.

• imtringued 4y ago
  It's not a steel cable. The idea is that the bolts are sacrificial components that stretch when the building sinks further and can be jacked back up to correct the sinking and these bolts need to be inspected and possibly replaced routinely. That in itself is not damning. The real question is how do they intend to inspect the threaded connection to the concrete? To avoid frequent inspections you would want to over engineer it so it lasts for hundreds of years even if the building will be torn down in 15 years but the steel bar is ridiculously undersized and should be considered sacrificial as well but it cannot be replaced nor inspected. What is really disappointing about this whole project is that nobody stopped and thought about building a model for dynamic and static load tests to prove that it works in reality. After all, this has never been done before on a building of this scale.