Spaceflight

I wonder if we start to live in massive space stations if we will have to replace our space station every like hundred years or something. I mean this one lasted basically what 30 years and it's already cracking. Obviously, a station large enough to handle tens of thousands of people is going to leak and they are going to have to have systems in place to shut down segments and make sure people are safe. However, with structures that large, a leak would take a very, very long time to become a problem.

Edit: I am thinking like O'Neill cylinders and shit.