2024 aluminum bar API standard 650 unanchored tanks

The internal floating plate of internal floating roof tank of API 650 tank is different from that of open floating plate of API standard 650 unanchored tanks External floating roof tank of API 650 tank, so it is impossible to have rain and snow load.

With the continuous development of large-scale oil storage tanks, the foundation of API standard 650 unanchored tanks has also continued to grow. Among them, API standard 650 unanchored tanks vertical oil tanks are storage tanks commonly used to store crude oil, diesel, gasoline and other oil materials. This type of storage tank is set up as a cylindrical shape. The bottom of the tank is a circular flat bottom plate, and the load surface of the oil tank is basically horizontal, which can generally be regarded as a uniform load, and has greater flexibility.

When the API standard 650 unanchored tanks top shell course is the minimum thickness indicated in 5.10.4, Table 5-6 and Figure 5-6, details a – e, h and i, the minimum anchorage shall be designed for normal loads as specified by the Purchaser and by this standard. See 5.11.2.3 for the allowable stress. When the top shell course is thickened beyond the minimum thickness provided in Table 5-6 or as in Figure 5-6, details f and g, or a knuckle is used, the minimum anchorage shall be designed for three times the internal design pressure. The allowable stress for this loading is 90% of the minimum specified yield strength of anchorage material.

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