Why are many storage tanks made of steel structures rather than concrete structures?
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Concrete structures must be much cheaper, right?
Do you mean the concrete used for the tank foundations?
It’s a reinforced concrete structure, just like building a house.
Do you mean the tank body? Pressure vessels cannot be made of cement... Their load-bearing capacity is insufficient, and there are also issues related to chemical reactions and leaks, among other things
It’s probably mainly due to leakage; the compressive strength of reinforced concrete is quite good.
This internal pressure is different from what you might imagine; it’s far less than that of concrete
It’s not easy to achieve impermeability and leak prevention, and its pressure resistance is not high either – only a few kilopascals. Steel-concrete structures are generally used in fire water tanks
The tanks used in water treatment are all of steel-concrete construction.
The useful concrete structures underground, such as oil discharge tanks and sludge tanks, are all of steel structure above ground