×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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!
  • Students Click Here

*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

Jobs

Advantages of Hot Rolled Steel over Built up sections

Advantages of Hot Rolled Steel over Built up sections

Advantages of Hot Rolled Steel over Built up sections

(OP)
Hi all,

Our company received a design for a workshop. The designer considered all the sections as built up sections..! Even the truss works & purlin.!!. We have informed the client about the extra cost to build up the built up section and then fabricate it. And they requested us to advise the designer to replace it with hot rolled sections etc. But the designer still not agreeing to use these sections but he dont have a reason to prove it. There will be a meeting after a couple of days. Please give your experienced insights to help me make some good points about the advantages of using hot rolled sections. Not only economically but also with design terms.

Thank You.

(I am not basically a design engineer. I am not aware of the terms stress, load etc etc. but I can use it with your help)

Thanks

RE: Advantages of Hot Rolled Steel over Built up sections

The only parameter of significance, and it's a big one, is cost. For the overwhelming majority of members, built up sections are fine structurally. Turn of the century steel work was almost exclusively built up members. This will be reaching a bit but some other potential problems might include:

1) Galvanizing difficulties
2) More potential fatigue issues
3) Cost of weld/bolt inspection
4) Difficulties evaluating capacity for future renos

Did the designer provide a reason for his unconventional design? Is this shop being built in the mountains of Tibet where piece weight is uber-important? Is he/she a nostalgic centenarian? There's gotta be some rationale for the built up shapes. Normally, that would be more work for the designer too. Maybe it's regurgitated from a design where one of the requirements was to use mill yard scrap?

The greatest trick that bond stress ever pulled was convincing the world it didn't exist.

RE: Advantages of Hot Rolled Steel over Built up sections

Are these "built up sections" in a "preengineered" building? If so, there may be some economy to be had in the initial construction, mainly due to automation. But in that case, you are forever and a day stuck with a bare bones structure. If the building is being designed and constructed in the traditional manner, rolled sections are generally more economical because the fabrications costs are lower.

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!


Resources