Originally Posted By: PandaBear
Come to think of it, is it actually cheaper and more reliable if we just replace poured concrete structure like those with all factory build jack? You can swap them out as they age and it will be much less labor involved, and probably more durable too.
Steel costs way more money that concrete. Vertical cracks aren't as bad as horizontal cracks. I think horizontal cracks will just sheer away. Vertical cracks are common in foundations, it doesn't affect the load carrying capacity as much as a horizontal crack. Concrete takes the weight in compression. There's probably rebar inside anyway.