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  1. Lord Ets

    SHELL FINAL THICKNESS

    MJCronin, What's wrong with you. I did nothing to you. Karma will take care of you. Goodluck.
  2. Lord Ets

    SHELL FINAL THICKNESS

    Sir HTURKAK, Thank you for your response. I really appreciate it. I will read those sections/annex you referred. Wind velocity is 290kph. Yes sir. The tank content is water Sir.
  3. Lord Ets

    SHELL FINAL THICKNESS

    Sir lFRs, It's ok, I understand. I'm just feel nervous when the time I found out that my tank design is still not ok. Since there's alot of design criteria I have to consider. Lack of design criteria is my problem from the very start, I know it. I tried to tell this to my boss before, but it...
  4. Lord Ets

    SHELL FINAL THICKNESS

    What about the operational and design pressure of full of water. How can I use that? When I calculate the shell thickness, I only used the formula and the height from the top of tank shell. For example in 2nd photo, I calculate the 1st or bottom course with a height of 17.00m. And for the...
  5. Lord Ets

    SHELL FINAL THICKNESS

    Sir lFRs I didn't used section 5.9 for wind girders. When I noticed that Annex V has more detailed about buckling, specially it has detailed example calculation. I should design the tank/s for both section 5.9 and Annex V?
  6. Lord Ets

    SHELL FINAL THICKNESS

    Sir lFRs Therefore, I should told this to my boss? The he need to contact/email the client and request for the values specially for (internal pressure, external pressure, and seismic parametets). I already know the location. That is why I calculate the wind load and some seismic paramters...
  7. Lord Ets

    SHELL FINAL THICKNESS

    Sir HTURKAK Can you check again the 2nd photo I sent. That I.H 18B, is that a vent Sir?
  8. Lord Ets

    SHELL FINAL THICKNESS

    Sir HTURKAK i. The calculation of internal pressure you are talking about is can be found at API 650 Annex F? If not, can you give me reference. Using external pressure of 6.9kPa (maximum for API 650 - Annex V) is ok or I'm safe with that? Since I can't find the section or annex in API 650...
  9. Lord Ets

    SHELL FINAL THICKNESS

    Thank you Sir IFRs, what about roof framing? How do you design roof framing like that? In my case, I used STAAD.Pro and check it manually. My boss always suggest that if the structure can be designed using software, then use software.
  10. Lord Ets

    SHELL FINAL THICKNESS

    My boss told me that it should be anchored. Maybe because it has slopped bottom. Now you can see. API 650 doesn't have section or provision about agitator and slopped bottom. Any ideas and suggestions are really appreciated. Thank you.
  11. Lord Ets

    SHELL FINAL THICKNESS

    This is a rafters for dome. But this is for reference only. I'm design for cone roof. As you can see, there vertical I section outside the tank shell. I already design roof framing for steel tank and it is locate inside the tank. But now, it is stainless steel tank. The client wants the roof...
  12. Lord Ets

    SHELL FINAL THICKNESS

    And this has vent. Agitator weight is 5tons also.
  13. Lord Ets

    SHELL FINAL THICKNESS

    This is 1 example of the tank, stainless steel. As you can see, no vent. The agitator weight is 5tons. Sir HTURKAK, these are the datas you are looking for.
  14. Lord Ets

    SHELL FINAL THICKNESS

    Sir IFRs, yes. I will add vertical beam outside the tank shell. That's the problem, no info for agitator motor to be use. For example, I already know the agitator torque. Is there any other formula to be consider. Or a fomula with relation between tank/shell and the agitator torque? If mild...
  15. Lord Ets

    SHELL FINAL THICKNESS

    Yes Sir r13, thank you. I'm trying my best, that's why I'm here to gather some informations. All of you, thank so much.
  16. Lord Ets

    SHELL FINAL THICKNESS

    I'm waiting until the pandemic is gone, and look for another company. I'm aware that these should be design with someone with experience. Again, maybe this is so rude but I don't have a choice. My intention is to over design and over price the tank/s. Over design for my safety and over price...
  17. Lord Ets

    SHELL FINAL THICKNESS

    Mr. MJCronin, concrete and steel frame. How about you, are you going to do that? Because I won't. If you don't know something just study and get some advice with person/s have experience on it. I thought anyone can ask some professionals here? I'm just asking some advice, I'm not asking you...
  18. Lord Ets

    SHELL FINAL THICKNESS

    Based on your replies Sir HTURKAK and Sir MJCronin. There's alot be consider when designing of tank. Yes, I agree. To be honest, my boss give me an old design of tank. It is already operating since 2008. The design is very simple. The pass designer used 1 foot method only, and that's it. A very...
  19. Lord Ets

    SHELL FINAL THICKNESS

    Sir MJCronin, I'm a civil engineer. With less than 1yr experience. My specialty is analysis and design of steel frame, concrete frame, etc. but not for tanks. Tanks are special structure. I'm struggling because I don't have senior to ask. In our department, we have electrical and mechanical...
  20. Lord Ets

    SHELL FINAL THICKNESS

    Yes I used Annex V.10 as reference, Sir HTURKAK.

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