×
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

Appropriate code evaluation

Appropriate code evaluation

Appropriate code evaluation

(OP)
I have been asked to design the connection of a carport structure to top of a deck of a barge
Curious to know what codes need to be utilized?
Does the ASCE applies for the wind load on a carport on top of a river barge?
Is AISC applicale for design of posts/columns to the top of deck?

Apprecaite structural engineers or mechanical engineers that are familiar with this subject to direct me.
Sincerely,
Your Collegue

RE: Appropriate code evaluation

I assume this is related to your wind post in the other topic. Should have just kept them together.

I know of no code that covers your situation but that doesn't mean it doesn't exist.

I'd say using ASCE and AISC are a good way to provide a reasonable measure of safety. This would seem to fall under a "building-like structure" to me.

Maine Professional and Structural Engineer. www.fepc.us

RE: Appropriate code evaluation

in addition to ASCE & AISC I would also take a look at the motion of the barge and how it affects the wind cases. Then check the wind on the canopy for the typical cases and then check it against a wind case when the barge is rolling and tilting the canopy into/away from the wind @ some angle...45degrees might be an upper limit or any other case that might govern...one can use their engineering judgement as to what is reasonably possible....

RE: Appropriate code evaluation

Interesting loading question...

Can the barge be towed to anywhere in the world, or will it be restricted to a certain position or locale. Answer makes a whale of a difference on the loads to apply.

Mike McCann, PE, SE (WA)


RE: Appropriate code evaluation

(OP)
msquared48 (Structural),
This barge should be stationary most times as kind of being used as a deck by the shoreline of river but it may be moved to different location for the same service.

Could u please explain the two cases of loads that you refere, "Answer makes a whale of a difference on the loads to apply"?
Thank you very much

I am burning to learn and understand this.

RE: Appropriate code evaluation

I think msquared just means that there is a big difference in the ASCE 7 wind loads if the river is in the Florida panhandle versus Ohio. If it can theoretically be moved locations, you'll want the worst case wind loading. SAIL makes a good point about the motion of the barge affecting the structure. You may want to consider applying some displacements at the top of the structure to capture the effect. How much displacement is probably based on engineering judgement.

RE: Appropriate code evaluation

You might try looking at the structural requirements of the IACS rules for bulk tankers. They would be slow movers, like your barge, and they often have odd and ancillary structures above decks. There might be some helpful guidance there.

Thaidavid

RE: Appropriate code evaluation

Potentially also look at harmonic oscillation loads on the connections as well. Wouldn't want to turn this into another Tacoma Narrows bridge and a boat has an almost limitless number of frequencies it can throw at a stuff attached to it.

Maine Professional and Structural Engineer. www.fepc.us

RE: Appropriate code evaluation

I would call the closest Coast Guard unit.
There may be reg.s that engineers don't normally deal with. If the river has locks, you should be able to find them.

Richard A. Cornelius, P.E.
WWW.amlinereast.com

RE: Appropriate code evaluation

depending on the size of the barge and the size of the canopy, another area to check would be the affect of the canopy on behaviour of the barge ie. stability, hydro performance, etc...

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