API standard 650 self-anchored flat-bottom steel tanks external loads
The head of API standard 650 self-anchored flat-bottom steel tanks etc. vertical oil tank is the end cover on the top of vertical oil tank. It is used to separate the oil stored in the tank and the medium outside the tank, and also used to bear the pressure on the top of the vertical oil tank. The quality of the head is closely related to the long-term safety of the API standard 650 self-anchored flat-bottom steel tanks. The head surface can be divided into convex shape, cone shape and flat shape according to its shape. The oil tank head can not be disassembled after welding.
When the anchorage is designed to meet the requirements of API Standard 620 tank Q.3.6.4.2, the foundation should be designed to resist the uplift that results from three times the design pressure with the tank full to the design liquid level. When designing to any of the conditions in this paragraph, it is permissible to utilize friction between the soil and the vertical face of the ringwall and all of the effective liquid weight.
This API 650 tank standard is designed to provide industry with tanks of adequate safety and reasonable economy for use in the API standard 650 self-anchored flat-bottom steel tanks storage of petroleum, petroleum products. and other liquid products.
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