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Recent content by oolivares

  1. oolivares

    Load Combinations in Roof Design - API 650 Tanks

    youre right, thanks a bunch!!
  2. oolivares

    Load Combinations in Roof Design - API 650 Tanks

    Hi All, I´ve have a big doubt respect of which Load Combos (section 5.2.2) applies in the design of roof structure; according "5.10.2.1 General" in Roofs section, the design of roof and structure shall consider "5.2.2 a, b, c, e, f, g" load combos, but for example combinations 'a' and 'b' have...
  3. oolivares

    contributing area of roof plates - Annex F

    Hello All In Api 650 tanks, compression ring must be designed according to figures F-2. Details 'i' and 'j' clearly states that pieces conforming the compression bar has to be joined with butt welds; details 'a' through 'h' and 'k' in change do not indicate the same. It is supposed to be that...
  4. oolivares

    API 620 ANCHORAGE RATIO

    Thanks, JStephen. It is clear to me, now.
  5. oolivares

    API 620 ANCHORAGE RATIO

    Thanks, JStephen, So, according your answer, a negative value of the anchorage ratio "J" is permitted? The software Tank gave me those results, take a look to the attachment, please. According the message in the software, the Tank is stable (for seismic loading) and do not require anchorage but...
  6. oolivares

    API 620 ANCHORAGE RATIO

    Hello there, Is it possible to have as a result on calculating the anchorage ratio as a negative value, according API 650/620 J<054 but in my calculations I obtain -6.57... because of the parameter "-Wint", by the way my design pressure is 4.3 psig,
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