Seismic design for API 650 unanchored flat-bottom tank
The foundation design of the API 650 unanchored flat-bottom tank should meet the requirements of foundation stability and deformation, that is, the API 650 unanchored flat-bottom tank foundation should not be crushed and the uneven settlement value of the foundation should be within the allowable range. The uneven settlement of the storage tank foundation should be specified in the design process of the safe allowable range, because excessive uneven settlement will reduce the safety of the API 650 unanchored flat-bottom tank and cause distortion and deformation of the tank wall and bottom plate.
Materials for API 650 unanchored flat-bottom tank primary components shall comply with the requirements of Tables R-1 and R-2. All primary components shall be impact tested in accordance with R.2.1.2 through R.2.1.4. Impact testing of API 620 welded storage tanks plates, including structural members made of plate, shall comply with Table R-1. Impact test specimens shall be taken transverse to the direction of final plate rolling.
API 650 is an American standard for welding flat bottom vertical storage tanks. This API 650 unanchored flat-bottom tank standard specifies requirements for the design, manufacturing, welding, inspection and installation of storage tanks. API 650 is widely used in storage tanks designed to withstand low internal pressures and used to store typical products such as API 650 unanchored flat-bottom tank crude oil, gasoline, chemicals and water. BBN has extensive experience in API 650 tanks, from +/- 500 cubic meters of tanks produced in the factory to +/- 15000 cubic meters of tanks produced on site.
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BBN steel strictly control quality of our carbon steel plate, alloy steel plates and structural steel plates. For API 650 unanchored flat-bottom tank ASTM A572 Grade 50 structural steel plate, Our Q/C Department will inspect dimension before shipment, making sure structural steel plate thickness tolerance and width, length tolerance are matchable to the API 650 unanchored flat-bottom tank standard requirements. The company is a good ASTM A572 Grade 50 structural steel plate supplier in the globle market and the head is located in China. Welcome to send us inquiry and questions about structural steel plate.
