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  1. yuntislol

    Dome roof structure calculation according to DIN 4119

    Exactly my thougt. Thank you for your input. I only get valid results after IPN 200. Even though the tank is already built for 30+ years. I know that steel only gets plastic deformation at about 210 Mpa, and we are assuming 140 Mpa, but still not a safe construction
  2. yuntislol

    Dome roof structure calculation according to DIN 4119

    Mr. HTURRAK, Thank you for your opinion. I cannot disclose any drawings outside of the organization. What are your thoughts on calculation the maximum normal stress of second order through maximum moment of 2nd order despite the calculated profile does not meet the requirements of minimum...
  3. yuntislol

    Dome roof structure calculation according to DIN 4119

    Mr. HTURRAK. Tank construction code is API 650 with the exception of the roof structure! Roof radius is over the API max curvature >1.2 OD (roof radius is 1.5 OD) TANK ID = 31090 mm Tank height = 14630 mm Dome radius = 46 635 mm Roof thk = 5mm Top angle = 150x150x14 mm bottom slope 1:120...
  4. yuntislol

    Dome roof structure calculation according to DIN 4119

    Yes steel dome with internal ribs. We have a signed contract with the client to check for tank integrity for new service. Service change doesn't affect roof so it would be a problem since original construction. Even though there is no standardized method, if the manufacturer chose DIN 4119, and...
  5. yuntislol

    Dome roof structure calculation according to DIN 4119

    Good afternoon everyone, Currently involved in a project that needs to check suitability for change of service in a tank. Although the service change has no impact in the roof, i replicated the design in AME Tank. Major concerns: Construction code used: DIN 4119 (not supported in my AME TANK...

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