Smart questions
Smart answers
Smart people
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Member Login




Remember Me
Forgot Password?
Join Us!

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips now!
  • 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!

Join Eng-Tips
*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.
Jobs from Indeed

Link To This Forum!

Partner Button
Add Stickiness To Your Site By Linking To This Professionally Managed Technical Forum.
Just copy and paste the
code below into your site.

Load combinations for anchorage of pipes with thermal and fluid loads

MBR1009 (Structural) (OP)
14 May 12 17:27
We are providing supports for pipes with thermal and fluid loads. When applying ASCE 7-05 load combinations, what part of the load combination shall we apply the thermal and fluid reactions.

It is clear where we apply the Gravity and seismic loads but for internal fluid pressures and thermal loads, ASCE is not very clear.

Thanks
MBR1009 (Structural) (OP)
14 May 12 18:58
Just found the answer.

The California Building Code has a clear definition of F and T which is where the fluid pressure and thermal reactions are to be included.
jehake12 (Mechanical)
16 May 12 17:36
Be careful where you locate the pipe anchors, guides and supports. You can damage the pipe by over constraining a thermally active piping system. I recommend following ASME B31.1 (Power Piping), B31.3 (Process Piping) or B31.9 (Building Services Piping) depending on the application.

At minimum, use 2008 ASHRAE Handbook chapter 45 to ensure you are not over stressing the pipe.

It can be challenging to find the proper restraint configuration for piping subject to both seismic and thermal loads.

delagina (Structural)
17 May 12 9:47
if this is a piperack you may want to use load combination from PIP. it's also based on ASCE but more specific for O&G (ex. pipe friction dont combine with wind)

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!

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