×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

F.4.2 Pressure limitation for mechanically-anchored Tank?

F.4.2 Pressure limitation for mechanically-anchored Tank?

F.4.2 Pressure limitation for mechanically-anchored Tank?

(OP)
I understood that the Pre-set design internal pressure for your tank shall be adjusted base on the MIN(PF.4.1 , PF.4.2).
That is clear; if my tank is going to be mechanically-anchored; should ignore the value of calculated PF.4.2 & adjust the Tank design internal pressure base on PF.4.1 Only?

Also, I understood that the Pressure failure limitation (F.4.3) is NOT required in case your tank having Non-frangible joint?
Mohd Yaseen

RE: F.4.2 Pressure limitation for mechanically-anchored Tank?

The F4.1 is limited based on top angle area.
The F4.2 is based on the tank being unanchored and does not apply to anchored tanks.
The F.4.3 applies to any tank but will generally only control if roof slope and design pressure are low.

RE: F.4.2 Pressure limitation for mechanically-anchored Tank?


Eng. MohdYaseen2010 ,

What is your opinion , if internal pressure exceed the weight of the shell, roof and attached structural elements ,and if anchors not provided does it fly like a balon?..

RE: F.4.2 Pressure limitation for mechanically-anchored Tank?

(OP)
Dear JStephen;

Thanks for your respond.


F.4.2 assessed for anchorage concerned to the internal pressure only, others stability is covered in Basic Design Section. Now I can say I have the option to ignore F.4.2 evaluation as long as I am going to anchor my tank.

F.4.3, shall be assessed regardless the result gained in 5.10.2.6. (In my case tank roof resulted as non-frangible).

Dear HTURKAK;

I didn’t get the point of your question!

In my case, internal pressure is less and F.2 through F.6 need to be applied.

Sure if internal pressure exceed tank weight, F.8 shall be applied and tank shall be anchored.






Mohd Yaseen

RE: F.4.2 Pressure limitation for mechanically-anchored Tank?

Quote (MohdYaseen2010
....Dear HTURKAK;

I didn’t get the point of your question!

In my case, internal pressure is less and F.2 through F.6 need to be applied.

Sure if internal pressure exceed tank weight, F.8 shall be applied and tank shall be anchored.)


My point is simple.. I am asking your opinion ,if internal pressure exceed the weight of the shell, roof and attached structural elements ,and if the tank is not anchored , does it fly like a balon?..

RE: F.4.2 Pressure limitation for mechanically-anchored Tank?

(OP)
Dear HTURKAK;

In simple way the answer,
IF Pi exceed weights of tank, then F.8 (mechanical-anchored) applied which ensured stability of the tank (CANNOT FLY LIKE A BALLON).

Mohd Yaseen

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login



News


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close