A841 Gr B Cl 2 plates API standard 650 petroleum storage tanks

Floating roofs shall comply with API standard 650, Appendix C (Attachment 01) or with the API standard 650 petroleum storage tanks requirements as layed (laid )down in the national Chinese specifications SH3046-92 and GBJ128-90.

Uplift on Foundation
For API Standard 620 tanks with an internal design pressure less than 1 lbf/in.2 gauge, the uplift shall be taken as the smaller of the maximum uplift values computed under the following conditions:
a)The internal design pressure times 1.5 plus the design wind load on the shell and roof.
b)The internal design pressure plus 0.25 lbf/in.2 gauge plus the design wind load on the shell and roof.

No matter what type of storage tank needs to be built, the natural conditions of the geographical area where the tank is located should be fully considered in the design. Because natural conditions will affect the service life, storage safety and construction cost of storage tanks such as API standard 650 petroleum storage tanks. Generally, the natural conditions that need to be considered before API standard 650 petroleum storage tanks design and construction are: regional temperature, wind load, snow load, ground endurance, external environment corrosion, etc.

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