zlacker

In Spain buildings older than 50 years are required to be inspected and mandated to make reforms if necessary. I doubt it's much different in the rest of Europe/north America

Also, buildings don't fall all of sudden. You would get a lot of cracks and problems before your building collapses

>>diegoc+(OP)
> Also, buildings don't [fail] all of sudden

They certainly do in earthquakes. Even in areas that nominally don’t have earthquakes, some parts of the building code will surely be about ability to withstand a rare earthquake.

>>diegoc+(OP)
... buildings don't fall all of sudden...

False.

Large structural failures can be catastrophic and unexpected.

Buildings can and do collapse quite suddenly. The examples here are not necessarily caused by reinforced concrete failures (though several cases make use of reinforced concrete --- generally other failures lead to the collapse). But the final failure of a system under load and near its structural limits can be quite sudden.

Taiwan bridge: https://youtube.com/watch?v=OSCPUGHUyIs https://youtube.com/watch?v=WqHXMswLwPM

Minnesota I35W bridge collapse: https://youtube.com/watch?v=CMdv2wRaqo4

Jerusalem dance floor: https://youtube.com/watch?v=5UOb7RBWlak

Morandi bridge, Italy: https://youtube.com/watch?v=V479srTBlAk

Hard Rock Hotel New Orleans (under construction): https://youtube.com/watch?v=WC8k5unvyfU

Sampoong Department Store, Korea (visualisation): https://youtube.com/watch?v=aQXTSR9koCg

The Kansas City Hyatt Regency skywalk collapse (1981) would be another instance. I don't believe there's video of the failure itself, though Grady from Practical Engineering has a great explainer of what went wrong: https://youtube.com/watch?v=VnvGwFegbC8