×
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

private property bridge beam size

private property bridge beam size

private property bridge beam size

(OP)
I am getting ready to demolish an already collapsing bridge on my property. It's made of 7 steel gas pipes, each 25' long, 8 1/2" in dia., with a pipe wall thickness of 3/8" thick. The actual span is 22' long by 12' wide. I'd like to replace it with I or H beams, and capable of holding a 10,000 pound load driven over it. I will be using steel grating as the surface material. There will be concrete embuttments at both ends of 24" thick. From the embuttment surface to the road grade is 19", and the bridge will not have a slope. I prefer a 4 beam design so there will be a pair with some separation on each tread side. Any thoughts would be greatly appreciated.

RE: private property bridge beam size

Unless there is alternate access, your bridge should be strong enough to carry heavy trucks such as heating oil delivery trucks, moving vans, and emergency vehicles like fire trucks.  You may even want to bring in a concrete truck at some point in time.  These vehicles can have axle loads greater than 10,000 pounds.  22' is not a very long span.  Don't skimp on the vehicle design load.

RE: private property bridge beam size

(OP)
Good idea,but what size, thickness, and number of beams would it take to handle such loads?

RE: private property bridge beam size

That's the kind of answer licensed engineers give for a fee.

Hg

Eng-Tips guidelines:  FAQ731-376

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