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AutoPIPE Vessel - Tank Bottom Plate & Annular Plate Dimensions

Uploader: Shaktit 4 years ago  
74% 92 votes

For bottom plate of large storage tank , the thickness of annular plate is larger, the length of weld seam is shorter; for center plates, if the center plate is not free to contract because of the external force during the welding, under the condition of no rigid fixation, the weld seam is made up and down, wave deformation inside the two sides of weld seam superimposes with it, the local arch at the bottom of whole storage up to tens of millimeters, it will not obey the requirement that the part deformation at bottom of the GB storage tank can not exceed 50mm. This temperature gradient creates ideal conditions for accelerated underside corrosion of the annular plate when rainwater is present. For welding deformation of large storage tank bottom plate, wave deformation and angular deformation are the main deformation form. Large storage tank is one of the indispensable equipment in petrochemical plant. So from your response, can I say the way I originally modeled my Tank with the values as I have done in the screen shots "Annular Plate [A]":

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