API 650 vertical welded storage tanks reinforcing plates

API 650 "welded storage tanks" API 650 vertical welded storage tanks is a standard developed and issued by the American Petroleum Institute (API), which specifies the minimum requirements for the design, manufacture, installation and inspection of welded storage tanks.

Soil Structure Interaction: Soil structure interaction per API 650, Section E.6.1.6 may be used for OLE design providing the damping ratio does not exceed 10 %.
Allowable Stresses
Design allowable stresses shall be per API 620 large welded steel storage tank, Section Q.3.3, including the 33 % increase permitted for earthquake loads.
Self-anchored Inner Tank
The anchorage ratio for a self-anchored inner tank, J, shall not exceed 1.0 for the OLE design combination to limit uplift and stresses in the annular plate and corner weld.
Foundation Stability
The overturning ratio defined in API 650, Section E.6.2.3, Equation (E.6.2.3-1) shall be equal to or greater than 3.0 for the defined OLE event.

The water dissolved in the oil will be separated out from the oil stored in the API 650 vertical welded storage tanks for a long time, and the acidic water layer will appear at the bottom of the API 650 vertical welded storage tanks for a long time, which will accelerate the corrosion of the API 650 vertical welded storage tanks and cause the wall thinning and even leakage. With the increase of service life, the API 650 vertical welded storage tanks must be inspected and cleaned regularly to check the hidden danger.

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Iron and steel goods, including pig iron, ingots, all kinds of steel and so on. Therefore, logistics companies are required to load evenly and evenly in the process of transportation, prevent moisture and prevent corrosion. It is necessary to prevent the API 650 vertical welded storage tanks steel sheet from being mixed with water when transporting the steel; it is necessary to prevent the API 650 vertical welded storage tanks steel from being mixed with water when transporting the steel; it is necessary to prevent the steel from being mixed with water when transporting the steel; it is necessary to prevent the steel from being mixed with water when transporting the steel; it is necessary to prevent the steel from being mixed with water when loading the API 650 vertical welded storage tanks steel sheet on the truck Good luck.

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