Quote:
Originally Posted by someone123
The idea that buildings have a lifespan and approach end of life is something I haven't heard nearly as much outside of a NS context. There are buildings with engineering flaws or components that wear out and discussions about whether it's worth maintaining them. Europe has many 800 year old wooden buildings.
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A short lifespan like is being discussed strikes me as odd. The Golden Gate bridge in San Francisco was completed in 1937. It had a retrofit about 20 years later to prevent twisting in the wind and deck replacement (40% lighter) done over 4 years from 1982 - 1986. I haven't seen any mention of a design lifespan.
https://en.wikipedia.org/wiki/Golden_Gate_Bridge 
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