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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Quote:
Originally Posted by Offshore1
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  |
See CBC article linked below:
https://www.cbc.ca/news/canada/nova-scot...eplaced-or-refurbished-by-2040-1.7583263
The engineers are the ones discussing lifespan, but presumably they are taking all of the factors into consideration, such as material fatigue, corrosion, deck degradation, etc., plus the potential for increasing capacity for the future. Is lifespan more of a concept relating to the calculation of cost for new build vs refit/modification? Perhaps. Regardless, their conclusion seems to indicate that replacement is the best option.
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